{"title":"Latest Arrivals","description":"\u003cp\u003eNew specimens added throughout the week!\u003c\/p\u003e","products":[{"product_id":"min3031serandite","title":"Serandite","description":"\u003cp\u003eFantastic serandite specimen with excellent salmon-pink color and brilliant luster. A great little piece that well represents fine serandites from Poudrette Quarry, Canada.\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":52969103098129,"sku":"min3031","price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3031_1_of_3.jpg?v=1770705876"},{"product_id":"min3063calcite-dolomite-and-chalcopyrite","title":"Calcite, Dolomite and Chalcopyrite","description":"This outstanding small cabinet specimen from the Sweetwater Mine showcases complex scalenohedral calcite crystals extending through and projecting from pieces of matrix. The vitreous crystals are translucent, with several showing double terminations. The matrix displays beautiful crystallization as well, with some sections coated in cream-colored dolomite and others composed of weathered galena. Chalcopyrite is also present, appearing as a light dusting in some areas and as small brassy crystals scattered throughout. The specimen is in excellent condition with no notable damage on the display side and only minor cleaved calcite on the reverse.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53050385924369,"sku":"min3063","price":250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3063_1_of_1.jpg?v=1769565661"},{"product_id":"min3076-copyquartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"A glassy Herkimer Diamond perched in a little dolostone pocket, featuring excellent clarity and a geometric \"footprint\" left behind where it grew in contact with a neighboring crystal. From the Herkimer Diamond Mine in Middleville, New York.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53097356853521,"sku":"min3076","price":35.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3076.png?v=1770195107"},{"product_id":"min3070-copyquartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"An beautiful little cluster of two Herkimer Diamonds displaying excellent luster and form. The larger crystal is water-clear and somewhat tabular in shape, while the smaller crystal is more cloudy with an slightly elongated form. These crystals were collected in 2025 and found nestled together on a dolostone vug, and small contact indentations show where they grew in contact with the matrix. ","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53097357902097,"sku":"min3070","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3070_2_of_4.jpg?v=1770194361"},{"product_id":"min3069-copyquartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"This little gem may be small, but its water-clear clarity and vitreous luster make it a standout specimen to represent this world famous variety of quartz! With sharp edges and double terminations, it is a truly classic Herkimer Diamond specimen. ","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53097357967633,"sku":"min3069","price":32.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3069_1_of_4.jpg?v=1770195000"},{"product_id":"min3068-copyquartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"A lovely specimen of the quartz variety: Herkimer Diamond. It displays excellent luster, clarity, and the double terminated shape that these raw gems are renowned for. Mined by our team from the Herkimer Diamond Mine in Middleville, NY, in April of 2025.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53097358000401,"sku":"min3068","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3068_1_of_4.jpg?v=1770518386"},{"product_id":"min3067-copyquartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"\u003cp\u003eAn exceptional Herkimer Diamond specimen displaying the superb clarity and luster characteristic of the finest quartz crystals from the Herkimer Diamond Mine in Middleville, New York. At nearly 3 grams, this represents a substantial size for material of this quality. Collected in April 2025 by Jenna Thompson from a particularly productive section of what is known as the \"Gemmy Layer\" within the Little Falls Dolostone formation. This crystal grew suspended within a tight vug between the rough dolostone walls, with the minimal points of contact evident as small indentations on the crystal faces.\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53097358033169,"sku":"min3067","price":90.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3067_5_of_11.jpg?v=1770273576"},{"product_id":"min3083-copyquartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"A stunning Herkimer Diamond nestled perfectly in a dolostone pocket, siting just right so you can see both of its terminations! A great small cabinet specimen that can be sat upright from different sides, depending on your preferences. The brilliance of the crystal gives beautiful contrast to the gray matrix. An excellent piece that shows the shocking juxtaposition of these gemmy crystals in rough stone. ","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53097358065937,"sku":"min3083","price":135.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3083_2_of_4_92724599-6b9d-47fc-be66-11049d726c96.jpg?v=1770194883"},{"product_id":"min3077-copy-copymalachite-and-chalcopyrite","title":"Malachite and Chalcopyrite","description":"An interesting specimen out of Sweetwater Mine consisting of botryoidal groupings of malachite with iridescent chalcopyrite. While chalcopyrite is among the minerals that Sweetwater Mine is known for, malachite is far less common for the locality. It is typically found as tiny spherules, with attractive specimens with a pleasing composition being much less common. \n\nOverall a stunning piece with beautiful form, perfect for collectors interested in minerals that are not typical for their locality. ","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53097359147281,"sku":"min3077","price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3077_3_of_4.jpg?v=1770194839"},{"product_id":"min3071quartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"\u003cp\u003eFantastic Herkimer Diamond specimen from the world renowned Herkimer Diamond Mine in Middleville, NY. It showcases excellent clarity and luster, sharp edges, and a small dolostone contact mark at one termination, showing where it grew in contact with the host rock. A good size for a specimen of this size (19mm\/4.3g).\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53113901973777,"sku":"min3071","price":130.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3071_2_of_3.jpg?v=1770691077"},{"product_id":"min3072quartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"A sharp, water-clear Herkimer Diamond, displaying the characteristic double-terminations of this quartz variety. At over five grams, this specimen is in fantastic condition for its size, with excellent clarity, luster and form. \n\nOne face of the crystal is not intact, but it does not detract from the overall appearance and display.\n\n\n\nCollected by Jenna Thompson at the Herkimer Diamond Mine of April 2025, from a particularly productive section of the what is known as the \"Gemmy Layer\" in the Little Falls Dolostone. ","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53113902104849,"sku":"min3072","price":165.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3072_4_of_4.jpg?v=1770690508"},{"product_id":"min3073quartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"An awesome, large, Herkimer Diamond specimen that measures 1 1\/4 inch in length from termination to termination. It showcases excellent clarity, especially for a specimen of this size. Contact indents on the surface show where the crystal once grew in contact with the Little Falls Dolostone.\n\nCollected in October 2025 by Jenna Thompson from site #2 of the Herkimer Diamond Mine. An outstanding specimen from this world-renowned locality.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53113902203153,"sku":"min3073","price":340.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3073_2_of_5.jpg?v=1770688245"},{"product_id":"min3074quartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"Herkimer County, located in Upstate New York, is the namesake locality for the quartz variety known as \"Herkimer Diamonds.\" The crystals found here are renowned for their exceptional clarity, vitreous luster, and characteristic double terminations. Typically, larger crystals contain more imperfections, but this specimen defies that trend with its remarkable condition for its size, measuring over one inch in length. It displays excellent clarity, luster, and form throughout. Minor internal inclusions are present but do not detract from the overall transparency. Contact marks in some areas indicate where the crystal grew against the host rock. Collected by Jenna Thompson at the Herkimer Diamond Mine in April 2025 from a particularly productive section of what is known as the \"Gemmy Layer\" within the Little Falls Dolostone formation.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53113902268689,"sku":"min3074","price":350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3074_5_of_5.jpg?v=1770689729"},{"product_id":"min3075quartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"Stunning, high-grade Herkimer Diamond with incredible clarity and natural double terminated shape. Small contact indents show where the crystal grew in contact with the host rock, the Little Falls dolostone. \n\nCollected by Jenna Thompson from site #2 at the Herkimer Diamond Mine in April 2025 from a particularly productive section of what is known as the \"Gemmy Layer\" within the Little Falls Dolostone formation.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53113902792977,"sku":"min3075","price":140.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3075_1_of_6.jpg?v=1770690374"},{"product_id":"min3081epidote","title":"Epidote","description":"A unique cluster of epidote with red-colored terminations. The crystals are dark green, so dark they are almost black, with an excellent luster. It the termination there the crystals are an earthy red color, likely from a coating of iron oxides giving it the appearance of zoning.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53113902924049,"sku":"min3081","price":45.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3081_1_of_3.jpg?v=1770688949"},{"product_id":"min3087azurite","title":"Azurite","description":"This richly colored azurite crystal from the Milpillas Mine, Sonora, Mexico, displays an intense, deep blue saturation paired with exceptional vitreous luster. The specimen is partially complete, featuring one prominent face exhibiting distinct, parallel striations that highlight its crystal growth history, while the opposing surface reveals a complex mosaic of tightly aligned crystal faces that produce a dynamic, reflective texture. The contrast between the structured striated surface and the multifaceted termination adds strong visual interest and dimensionality. Milpillas Mine is internationally renowned for producing some of the finest azurite crystals in recent decades, celebrated for their vivid color, sharp crystallization, and remarkable surface quality, making specimens such as this highly desirable among collectors.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53114093928721,"sku":"min3087","price":115.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/azurite_3_of_7.jpg?v=1770694640"},{"product_id":"min3082barite","title":"Barite","description":"This sculptural barite specimen from the Linwood Mine in Buffalo, Iowa, displays a dense grouping of sharp, well-formed crystals arranged in an attractive, interlocking cluster. The crystals exhibit a soft champagne to pale smoky coloration, enhanced by a pleasing translucent quality. Many crystals show crisp edges and reflective faces, creating a lively interplay of luster across the surface. Linwood Mine is widely regarded among collectors for producing some of the finest barite specimens in North America, often characterized by their complex crystal groupings and warm coloration. The contrasting matrix provides natural support and adds visual depth, making this a classic and highly representative example from this notable Midwestern locality.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53114104217873,"sku":"min3082","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3082_2_of_4_eb536a88-848e-49c9-9aa7-437ecf9b5732.jpg?v=1770688306"},{"product_id":"min3079quartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"This Herkimer diamond quartz specimen from the Crystal Grove Mine, New York, features a classic and aesthetically pleasing formation, with with a prominent Herkimer Diamond quartz crystal rising from a sparkling drusy quartz-coated matrix. The matrix is densely covered in fine, glittering quartz crystals that create a textured foundation and enhance the specimen’s overall brilliance. The main Herkimer diamond displays good clarity with localized warm yellow hues caused by iron oxide staining. At the termination, a visible contact scar marks the point where the crystal formed against the host rock. Crystal Grove Mine is known for its specimens of druzy quartz accented by Herkimer-style quartz, as seen in this specimen. ","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53132171575569,"sku":"min3079","price":35.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3079_1of3.jpg?v=1771299198"},{"product_id":"min3088chalcopyrite","title":"Chalcopyrite","description":"This vibrant chalcopyrite specimen from the Sweetwater Mine, Reynolds County, Missouri, features a striking display of iridescent, sharply crystallized chalcopyrite scattered across a contrasting, finely textured dolostone matrix. The chalcopyrite forms as well-defined clusters exhibiting a brilliant metallic luster in a vivid spectrum of natural tarnish colors. These lustrous groupings of crystals are aesthetically distributed across the matrix, creating appealing contrast and balance throughout the piece. \n\nSweetwater Mine is historically recognized for producing exceptionally bright and colorful chalcopyrite specimens, often characterized by their sharp crystallization and vivid oxidation hues. The combination of crisp crystal form, intense luster, and classic locality association makes this an excellent representative specimen from one of Missouri’s most respected lead-zinc mining districts.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53132171673873,"sku":"min3088","price":150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/minCCP_1of1.jpg?v=1771299009"},{"product_id":"min3089fluorite-and-pyrite","title":"Fluorite and Pyrite","description":"This attractive fluorite specimen from Xinyang, Henan Province, China, displays a distinctive botryoidal growth habit, with a textured crystalline surface comprised of hundreds of small flat faces. The fluorite exhibits pleasing translucent quality with subtle internal depth and a warm, coloration. Contrasting pyrite crystals partially coat the specimen in an attractive metallic dusting. The combination of classic botryoidal fluorite growth paired with metallic pyrite makes this a visually interesting and impressive specimen from this prolific mineral-producing region.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53132171706641,"sku":"min3089","price":280.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3089_1_of_5.jpg?v=1771318004"},{"product_id":"min3093celestine","title":"Celestine","description":"\u003cp\u003eLustrous celestine crystals with steel-gray coloration and subtle blue hue from Sylvania Minerals Quarry, Michigan. Elongated prismatic crystals project from a gray, calcite-covered matrix. Good translucence throughout with increased transparency near crystal edges. Fine specimen from this notable Michigan locality.\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53132171739409,"sku":"min3093","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3093_1of3.jpg?v=1771299075"},{"product_id":"min3092quartz-var-smoky-and-microcline-var-amazoninte","title":"Quartz Var. Smoky and Microcline Var. Amazonite","description":"\u003cp\u003eA classic Colorado pegmatite association of smoky quartz and microcline var. amazonite. Vibrant blue-green amazonite crystals contrast well against translucent to lightly smoky quartz in a compact, visually dynamic composition. The smoky quartz displays skeletal growth features, partially developed faces and open framework structures that add textural interest and speak to the crystal's growth history. Natural iron oxide staining adds warm tones along portions of the quartz, bringing additional depth to the piece. A lovely, representative example of this celebrated Colorado pairing.\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53132370772241,"sku":"min3092","price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3092_4of6.jpg?v=1771316837"},{"product_id":"min3094celestine","title":"Celestine","description":"\u003cp\u003eA lustrous celestine crystal from Sylvania Minerals Quarry, Michigan, collected in 2024. The crystal displays macromosaic-like faces that produce an appealing play of light when viewed from varying angles. Subtle blue-gray coloration with slightly deeper saturation toward the center. A pretty, well-formed example from this Michigan locality.\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53132370805009,"sku":"min3094","price":35.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/cls_1of3.jpg?v=1771316408"},{"product_id":"min3091calcite","title":"Calcite","description":"A lustrous calcite scalenohedron from Sweetwater Mine, Missouri. The crystal displays sharp, well-defined form with good translucency and extends cleanly from the matrix. A straightforward, attractive example of this classic Missouri locality.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53149044408593,"sku":"min3091","price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3091_1of5.jpg?v=1771811168"},{"product_id":"min3084calcite-and-malachite","title":"Calcite and Malachite","description":"Calcite displaying dual crystal habits—blocky rhombohedral forms in parallel growth alongside a single scalenohedron with subtle orange coloration. Chalcopyrite inclusions are present within the calcite, with secondary malachite crystallized along crystal faces. The rhombohedral crystals show complex surface development. \n\nFrom a recent find at an undisclosed location somewhere around the boundary between Guangdong Province and Hunan Province. ","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53149044441361,"sku":"min3084","price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3084_1_of_3.jpg?v=1771962997"},{"product_id":"min3085calcite-and-malachite","title":"Calcite and Malachite","description":" This lovely specimen features a duo of intergrown scalenohedral calcite towers with sharp, distinct forms and stepped growth faces. Vibrant green botryoidal malachite with an earthy texture grows along the surface, beautifully complemented by metallic chalcopyrite crystals included within the calcite. This specimen originates from a recent find at an undisclosed location near the boundary between Guangdong Province and Hunan Province in China.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53149044474129,"sku":"min3085","price":110.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3085_81d6c420-2923-4c30-b32e-d478e4de0097.png?v=1771813322"},{"product_id":"min3096quartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"A stunning, water-clear Herkimer Diamond specimen with razor-sharp form and double terminations. An excellent representation of these fantastic quartz variety gems from Upstate New York. Contact indentations along the surface of the crystal show where it grew in contact with the host rock.  ","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53149044506897,"sku":"min3096","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3096_2.jpg?v=1771813172"},{"product_id":"min3095actinolite","title":"Actinolite","description":"A striking actinolite crystal from Hastings County, Ontario, a region known for producing some of the finest examples of the species. This specimen exhibits a beautiful termination and excellent luster, with a well-formed, sharply defined crystal that exemplifies the quality associated with the locality.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53149044539665,"sku":"min3095","price":28.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3095_4.jpg?v=1772067076"},{"product_id":"min3102stilbite","title":"Stilbite","description":"\u003cp\u003eLustrous, well-defined peach-colored stilbite crystals arranged aesthetically on a basalt matrix. This specimen was mined prior to the 2000s, and remained in a private collection for the past few decades. A lovely old stock specimen from a the Deccan Traps in India.\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53149044572433,"sku":"min3102","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3102_2of3.jpg?v=1771813200"},{"product_id":"min3101adamite-austinite","title":"Adamite\/Austinite","description":"Fine glittery crystals of adamite\/austinite on a earthy brown matrix. From\n\nEx. Steve Pullman Collection, 1970s ","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53149044605201,"sku":"min3101","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3101_1of2.jpg?v=1771810936"},{"product_id":"min3100quartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"This unique Herkimer Diamond specimen displays an unusual and distinctive growth pattern. One end features a chisel-style termination, while the opposite end exhibits a horn-like shape with stepped growth faces. Collected from Ace of Diamonds during their final year of operations, this crystal appears to have originally formed as part of a cluster. The horn-shaped end likely developed through contact growth with an adjacent crystal, resulting in this intriguing and uncommon Herkimer specimen.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53149044637969,"sku":"min3100","price":110.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3100_3of5.jpg?v=1771813322"},{"product_id":"min3098quartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"This specimen from Ace of Diamonds Mine in Middleville, New York, showcases a dense group of Herkimer Diamond quartz crystals formed within a narrow druzy quartz-coated pocket. The crystals are bounded on two sides by thin plates of druzy quartz with iron mineral oxidation on the exterior surfaces. Lustrous crystals can be seen both tucked within the pocket and extending outward from it. Though many of the quartz crystals are incomplete, this is a highly gemmy specimen that demonstrates the fascinating growth behavior of quartz formation in confined spaces.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53149044670737,"sku":"min3098","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3098_3of4.jpg?v=1771813228"},{"product_id":"min3099epidote","title":"Epidote","description":"\u003cp\u003eA lustrous group of well-terminated epidote crystals in radial arrangement, forming an elegant fan-shaped cluster of elongated prismatic crystals. Alpine minerals from the Skardu region of Pakistan are renowned for their exceptional beauty and quality, with ongoing production continuing to yield world-class specimens from this prolific locality.\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53149085139217,"sku":"min3099","price":50.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3099_1of5.jpg?v=1771819531"},{"product_id":"min3097calcite","title":"Calcite","description":"Beautiful cluster of golden-yellow calcite crystals with secondary growth of snowy white calcites. The rhombohedral calcites are well formed and display a waxy luster. From the Sylvania Minerals Quarry in Monroe County, Michigan. This region of Michigan is known for its calcite and celestine specimens, with a limited number of specimens on the market due to restricted quarry access, limited to the occasional club field trip.  ","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53153322828049,"sku":"min3097","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3097_2of3.jpg?v=1772256963"},{"product_id":"min3103quartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"This little gem may be small, but its water-clear clarity and vitreous luster make it a standout specimen to represent this world famous variety of quartz! With sharp edges and double terminations, it is a truly classic Herkimer Diamond specimen. ","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53158665748753,"sku":"min3103","price":35.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3103_1_of_5.jpg?v=1772153896"},{"product_id":"min3104quartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"Stunning Herkimer Diamond with excellent clarity and vitreous flat faces. Features double terminations and contact indents showing were it grew in contact with the host rock. A lovely little gem that well represents these world-famous crystals!","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53158666010897,"sku":"min3104","price":35.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3104_1_of_4.jpg?v=1772153887"},{"product_id":"min3109quartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"\u003cp\u003e\u003cspan\u003eAt 4.09 grams, this natural gem displays excellent quality for its size, with superb clarity and luster. A fantastic example of the fine Herkimer Diamond quartz produced at the Herkimer Diamond Mine in Middleville, New York, it exhibits beautiful form with characteristic double terminations and a slight tabular habit. Minor internal inclusions are present in one lower corner but do not detract from the overall presentation. Surface contact marks indicate where the crystal grew against the host rock.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eOverall, a fabulous specimen that will stand out alongside a collection of gemstone minerals and exceptional thumbnail specimens. \u003c\/span\u003e\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53158666141969,"sku":"min3109","price":110.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3109_3_of_7.jpg?v=1772153937"},{"product_id":"min3110quartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"Excellent Herkimer Diamond with sharp geometric form, amazing clarity, and glassy luster. Incredibly gemmy, double-terminated, and water-clear. A geometric \"footprint\" shows where it grew in contact with a neighboring crystal. At one termination, a small blemish is present. Collected in April of 2025 from the Herkimer Diamond Mine in Middleville, NY. ","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53158747242769,"sku":"min3110","price":55.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3110_1_of_6.jpg?v=1772153905"},{"product_id":"min3106quartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"A nearly flawless Herkimer Diamond specimen, with excellent form, luster, and clarity. It features sharp edges and is an excellent representative of this famous quartz variety. One internal feature is present, just below the surface of one face. ","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53158747275537,"sku":"min3106","price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3106_6_of_6.jpg?v=1772153892"},{"product_id":"min3105quartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"This Herkimer Diamond exhibits excellent clarity, sharp double terminations, and brilliant vitreous luster, making it an outstanding example of this distinctive quartz variety. Collected in 2025, the crystal exemplifies the quality specimens produced at the Herkimer Diamond Mine in Middleville, New York. Completely natural and unaltered, it displays subtle contact marks where it grew against the dolostone host rock, preserving evidence of its origins.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53200353231121,"sku":"min3105","price":55.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3105_2of5.jpg?v=1773214078"},{"product_id":"min3108quartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"Lustrous Herkimer Diamond from Middleville, NY. Mined in 2025, this raw gemstone beautifully represents the fine specimens that make Herkimer County famous among mineral collectors around the world. Small contact marks along the faces of the crystal show where it grew in contact with the host rock. Overall, an excellent specimen of this iconic quartz variety! ","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53232857284881,"sku":"min3108","price":85.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3108_7of7.jpg?v=1773896103"},{"product_id":"min3107quartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"\u003cp\u003e\u003cspan\u003eGorgeous, high-grade Herkimer Diamond with excellent clarity. This lovely raw gemstone features exceptional brilliance and clarity, natural double terminations, and contact imprints showing where it grew in contact with the host rock, the Little Falls Dolostone. A fantastic crystal from Herkimer County that showcases the iconic features of this famous quartz variety.\u003c\/span\u003e\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53232857317649,"sku":"min3107","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3107_5of5.jpg?v=1773896080"},{"product_id":"min3113barite","title":"Barite","description":"\u003cp\u003eThis single, blocky prismatic barite crystal from the Linwood Mine, Scott County, Iowa, presents a warm, soft yellow-gold coloration, translucent throughout with a notable increase in transparency toward the crystal's edges. The primary faces carry a vitreous luster while the remaining faces display a contrasting frosted finish that adds textural interest to the piece. The interplay between these two distinct surface qualities, set against the gentle warmth of the coloration, makes for a compelling and well-crystallized example from this classic American locality.\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53259103240465,"sku":"min3113","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3113_5of6.jpg?v=1773915155"},{"product_id":"min3120quartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"Gorgeous, water-clear Herkimer Diamond in a dolostone vug. This specimen was mined by our team at the Herkimer Diamond Mine in Middleville, New York, in October of 2025. It showcases the brilliance of Herkimer Diamond quartz crystals alongside the stark gray contrast of the host rock, the Little Falls formation.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53265341415697,"sku":"min3120","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3120_1.jpg?v=1773915051"},{"product_id":"min3123astrophyllite","title":"Astrophyllite","description":"Lovely metallic sprays of astrophyllite from Poudrette Quarry. These distinctive crystal stars sit against a stark white backdrop of earthy albite, allowing them to shine with their golden metallic glow. An uncommon mineral from one of the most mineralogically interesting localities out there! Collected in the late 1900s.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53265869078801,"sku":"min3123","price":16.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3123_1of3.jpg?v=1773896024"},{"product_id":"min3127quartz-var-herkimer-diamond","title":"Quartz Var. Herkimer Diamond","description":"Lovely specimen from Ace of Diamonds Mine featuring a blanket of fine druzy quartz over dolostone with a little pair of water-clear Herkimer Diamonds perched atop. ","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53266009358609,"sku":"min3127","price":25.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3127_1of4.jpg?v=1773896070"},{"product_id":"min3114quartz-and-chrysocolla","title":"Quartz and Chrysocolla","description":"\u003cp\u003e\u003cspan\u003eCryptocrystalline habits are a defining characteristic of chrysocolla's mineralization, responsible for its vivid coloration and tendency to form botryoidal to rounded masses that lend the species a distinctly otherworldly aesthetic. These qualities allow chrysocolla specimens to hold their own alongside the most gemmy, prismatic crystallized minerals, making them a natural and compelling addition to advanced collections. The most coveted examples, however, showcase chrysocolla working in concert with a additional mineral species to produce truly sculptural masterpieces. Quartz serves as an especially appealing base in this regard, with blocky prismatic crystals becoming engulfed by encrusting chrysocolla. The resulting specimens are visually complex and compelling, often reflecting the dynamic geochemical environment of oxidation zones within ore deposits — with multiple discrete stages of crystallization preserved in a single piece.\u003c\/span\u003e\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53266225660177,"sku":"min3114","price":55.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3114.png?v=1773915227"},{"product_id":"min3122quartz-var-herkimer-diamond-and-hydrocarbon","title":"Quartz Var. Herkimer Diamond and Hydrocarbon","description":"\u003cp\u003e\u003cspan\u003eThe Elusive Herkimer Diamond Mine sits tucked away just a few miles from two of the most well-known localities in Herkimer County, New York. Despite this close proximity, the specimens produced there frequently take on a character distinctly their own when compared to those of the neighboring Middleville mines. While the region's reputation was built upon water-clear, doubly terminated Herkimer Diamonds of exceptional clarity, inclusion-rich crystals laden with hydrocarbons can come as a genuine surprise to those unfamiliar with the full range this area has to offer. Specimens from the Elusive Herkimer Diamond Mine span the full spectrum; from classically pristine, water-clear examples to deeply smoky crystals riddled with anthraxolite inclusions, such as this specimen. Notably, darker, inclusion-rich crystals predominate at this locality, while just across the river, the inverse relationship holds true.\u003c\/span\u003e\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53266235752721,"sku":"min3122","price":22.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3122_6of7.jpg?v=1773915539"},{"product_id":"min3121rhodochrosite-and-quartz","title":"Rhodochrosite  and Quartz","description":"\u003cp\u003e\u003cspan\u003eRhodochrosite ranks among the first minerals to come to mind when one considers the pink to red range of the color spectrum, and with good reason — the species occurs across an impressive tonal range, from delicate baby pink to deep, saturated red. The Davidkovo ore field of Bulgaria has established a distinguished reputation for producing elegant associations of softly colored, baby pink rhodochrosite rosettes with a characteristic pearly luster, paired alongside prismatic, colorless quartz crystals; a pairing well exemplified by this specimen. The combination offers a striking structural contrast between the curved, aggregate form of the rhodochrosite and the sharp geometry of the quartz, resulting in an association of considerable aesthetic merit.\u003c\/span\u003e\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53266260459793,"sku":"min3121","price":20.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3121_1of5.jpg?v=1773914984"},{"product_id":"min3125grossular-and-actinolite","title":"Grossular  and Actinolite","description":"Beautiful little thumbnail specimen (17mm) featuring orange garnets and green diopside crystals. An old find from the now-closed York River Skarn area, no longer accessible for collecting. I acquired this piece from an experienced collector who specialized in Canadian minerals.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53269647819025,"sku":"min3125","price":15.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3125_1of4.jpg?v=1774948382"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/collections\/min30_1of3.jpg?v=1773405461","url":"https:\/\/adamantineminerals.com\/collections\/new-arrivals-new-specimen-update.oembed?page=3","provider":"Adamantine Minerals","version":"1.0","type":"link"}