{"title":"Microcline","description":null,"products":[{"product_id":"quartz-adularia-and-epidote-on-amygdaloidal-basalt","title":"Quartz, Microcline, and Epidote on Amygdaloidal Basalt","description":"\u003cp\u003eA beautiful mineral combination of milky quartz with a vitreous luster, light orange microcline variety adularia, and granular green epidote. The crystals sit in a little pocket with an amygdaloidal basalt matrix. It is from the historic Mass C mine in Ontonagon, Michigan. I a quired this piece from Karl Schaffer who collected it in the early 70s when he and his friends were granted access to old mine shafts on private property, venturing up to half a mile underground. These shafts are now inaccessible, and very few specimens from this locality exist on the market today. \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51464577614097,"sku":"Cu29","price":45.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/Quartz-Microcline-and-Epidote-on-Amygdaloidal-Basalt-mass-mine-shaft-c-michigan-ontonogon-county-mineral-specimen-rare-USA.jpg?v=1783490386"},{"product_id":"adularia","title":"Microcline Var. Adularia","description":"\u003cp\u003eA stunning thumbnail specimen of the microcline variety, adularia, from the historic Mass C Mine in Ontonagon, Michigan. I acquired this piece from the miner, Karl Schaffer, who collected it in the early 70s when he and his friends were granted access to old mine shafts on private property, venturing up to half a mile underground. This specimen was discovered in the 3rd level of the mine shaft, which was coined the \"Silver Forest.\" \u003c\/p\u003e\n\u003cp\u003eThe unique and vibrant orange color of the microcline is due to the presence of disseminated copper within the crystals. This thumbnail-sized specimen shows particularly good color and luster.\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51464579678481,"sku":"Cu34","price":25.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/Microcline-Var_-Adularia-mass-mine-shaft-c-michigan-ontonogon-county-mineral-specimen-rare-USA.jpg?v=1783490394"},{"product_id":"mineral-collectionactinolite-microclinemin1850mineral","title":"Actinolite \u0026 Microcline","description":"Beautifully actinolite crystals in radial arrangement with deep green color and beige microcline crystals.\n","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51585241776401,"sku":"min1850","price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/Actinolite-Microcline-bancroft-mineral-specimen-Canadian-raw-crystals.jpg?v=1783498862"},{"product_id":"mineral-collectionactinolite-microclinemin1851mineral","title":"Actinolite \u0026 Microcline","description":"An aesthetic combination of dark green to nearly black actinolite crystals with contrasting light peach-beige microcline. Specimens showing such a well-balanced association of these two minerals are uncommon, particularly in this quality. Sourced from Hastings County, Ontario, Canada, this piece was collected decades ago and remained in the original miner’s private collection for many years.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51585241809169,"sku":"min1851","price":35.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/Actinolite-Microcline-bancroft-mineral-specimen-Canadian-raw-crystals_e15410ec.jpg?v=1783498878"},{"product_id":"mineral-collectionactinolite-microclinemin1852mineral","title":"Actinolite \u0026 Microcline","description":"Beautiful thumbnail-sized specimen featuring dark green to nearly black actinolite crystals with contrasting light peach-beige microcline. Specimens showing attractive pairings of these two minerals are uncommon, particularly in this quality. Sourced from Hastings County, Ontario, Canada, this piece was collected decades ago and remained in the original miner’s private collection for many years. ","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51585241841937,"sku":"min1852","price":28.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/Actinolite-Microcline-bancroft-mineral-specimen-Canadian-raw-crystals_e2247072.jpg?v=1783498917"},{"product_id":"mineral-collectionmicrocline-actinolite-min1853mineral","title":"Microcline \u0026 Actinolite","description":"An excellent small specimen composed of a single, cream-colored microcline crystal with a cluster of dark green actinolite crystals on one side. A lovely pairing of minerals from Hastings County, Ontario, Canada. This piece was collected decades ago and remained in the original miner’s private collection for many years.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51585242005777,"sku":"min1853","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/Microcline-Actinolite-bancroft-mineral-specimen-Canadian-raw-crystals.jpg?v=1783498942"},{"product_id":"spessartine-on-microcline","title":"Spessartine Garnet on Microcline","description":"\u003cp\u003eBeautiful, well-formed spessartine garnet crystals scattered across a microcline matrix. The larger garnets are a dark red, that appears almost black until a light shines through them. The tiny garnet crystals have a bright orange color and add tons of sparkle to this gemmy piece. An excellent of the sharp garnets that Fujian Province is known for.\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51645700866321,"sku":"grt27","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/Spessartine-Garnet-on-Microcline-Wushan-spessartine-mine-tongbei-fujian-mineral-specimen-raw-crystals.jpg?v=1783493641"},{"product_id":"spessartine-garnets-on-microcline","title":"Spessartine Garnets on Microcline","description":"\u003cp\u003eDark red spessartine garnet crystals on an clay-altered microcline matrix. A beautiful piece with excellent luster and rich color. The spessartines range from an almost dark red that appears nearly black until a light is shined through the crystals, to a to a lighter red-orange seen in the smaller crystals crystals. A very attractive specimen from Wushan Spessartine Mine. \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51645763453201,"sku":"grt28","price":26.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/Spessartine-Garnets-on-Microcline-Wushan-spessartine-mine-tongbei-fujian-mineral-specimen-raw-crystals.jpg?v=1783493662"},{"product_id":"cu30","title":"Quartz, Microcline, and Epidote","description":"\u003cp\u003eA beautiful milky quartz specimen lightly encrusted with distinctive orange microcline crystals, accented by bright green epidote and perched atop dark amygdaloidal basalt. This lovely piece comes from the historic Mass C shaft in Ontonagon, Michigan. I acquired this specimen from Karl Schaffer, who collected it in the early 70s when he and his friends were exploring old mine shafts—venturing up to half a mile underground. These shafts are now inaccessible, and very few of these specimens are available on the market. The orange coloration of the microcline is due to disseminated copper, offering a notable contrast against the quartz and epidote. A unique and tangible piece of Michigan's rich mining history. \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51727747973393,"sku":"Cu30","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/Quartz-Microcline-and-Epidote-mass-mine-shaft-c-michigan-ontonogon-county-mineral-specimen-rare-USA.jpg?v=1783490399"},{"product_id":"min2086microcline","title":"Microcline","description":"A textbook microcline crystal with sharp termination and beautiful peachy coloration accented by a clustered microcline crystals around the base. This lovely old find comes from Hastings County in Canada. A great little specimen to represent microcline in your collection. ","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":52710449873169,"sku":"min2086","price":35.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min2086_1_of_6.jpg?v=1762880741"},{"product_id":"native-copper-microcline-var-adularia-epidote-quartz-and-tenorite","title":"Native Copper, Microcline (Var. Adularia), Epidote, Quartz, and Tenorite","description":"\u003cp\u003eExcellent native copper matrix specimen with tenorite-coated copper accented by crystals of green epidote, orange microcline variety adularia, and milky to clear quartz. This combination of minerals makes for an intriguing and visually interesting piece with great contrast. An awesome piece of history from Michigan's Keweenaw peninsula. \u003c\/p\u003e\n\u003cp\u003eI acquired this specimen from Karl Schaffer, who collected it in the early 70s when he and his friends were exploring the Mass Mine shafts. This piece was discovered on the 3rd level of the Mass C shaft, from the area coined the \"Silver Forest.\" These shafts are now inaccessible, and very few of these specimens are available on the market.\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53044496498961,"sku":"Cu03","price":65.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/Native-Copper-Microcline-Var_-Adularia-Epidote-Quartz-and-Tenorite-mass-mine-shaft-c-michigan-ontonogon-county-mineral-specimen-rare-USA.jpg?v=1783490408"},{"product_id":"quartz-epidote-and-microcline-var-adularia","title":"Quartz, Epidote, and Microcline Var. Adularia","description":"\u003cp\u003eA remarkable quartz, microcline variety adularia, and epidote thumbnail specimen from the historic Mass C shaft in Ontonagon, Michigan. I acquired this piece from Karl Schaffer who collected it in the early 70s when he and his friends were exploring the now inaccessible Mass Mine. The piece features peach-colored microcline crystals, colored by disseminated copper, strikingly contrasted against milky quartz and green epidote. A unique and hard to come by piece of Michigan's rich mining history.\u003cbr\u003e\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53045180104977,"sku":"Cu33","price":20.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/Quartz-Epidote-and-Microcline-Var_-Adularia-mass-mine-shaft-c-michigan-ontonogon-county-mineral-specimen-rare-USA.webp?v=1783490421"},{"product_id":"cu02","title":"Microcline Var. Adularia, Epidote, and Tenorite-Coated Copper","description":"\u003cp\u003e\u003cspan\u003eStunning orange microcline var. adularia crystals with green epidote. The vibrant orange color of the microcline is due to the presence of copper disseminated within the crystals. Overall an awesome specimen from the Keweenaw Peninsula with lovely luster and crystallization. Found in the early 1970s, this piece was discovered on the 3rd level of the Mass C shaft, from the area coined the \"Silver Forest.\" These shafts are now inaccessible, and very few of these specimens are available on the market.\u003c\/span\u003e\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53045826781457,"sku":"Cu02","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/il_fullxfull.6264345515_kvc0.webp?v=1768963237"},{"product_id":"cu06","title":"Microcline Var. Adularia, Epidote, and Tenorite-Coated Copper","description":"\u003cp\u003eAwesome specimen featuring native copper with black tenorite coating and peach-orange crystals of adularia on a matrix with epidote and quartz. A great multi-mineral specimen from Michigan's Keweenaw Peninsula, one of the United States most iconic copper localities.\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53045827272977,"sku":"Cu06","price":75.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/Microcline-Var_-Adularia-Epidote-and-Tenorite-Coated-Copper-mass-mine-shaft-c-michigan-ontonogon-county-mineral-specimen-rare-USA.webp?v=1783490438"},{"product_id":"min3060-microcline-var-adularia-copper-quartz-and-epidote","title":"Microcline var. Adularia, Copper, Quartz  and Epidote","description":"An excellent specimen from Michigan's historic copper country that dates back to the early 1970's when it was collected from an abandoned mine shaft. It features lustrous microcline crystals, of the adularian variety, with a peachy-orange coloration due to the presence of disseminated copper within the crystal. Small bits of native copper poke out from below the surface, with a black tenorite coating. Granular epidote with bright green hues adds excellent contrast to the orange adularia. ","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53049995002129,"sku":"min3060","price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/Microcline-var_-Adularia-Copper-Quartz-and-Epidote-mass-mine-shaft-c-michigan-ontonogon-county-mineral-specimen-rare-USA.png?v=1783490448"},{"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":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3092_4of6.jpg?v=1771316837"},{"product_id":"min3140microcline-var-adularia-and-native-copper","title":"Microcline Var. Adularia and Native Copper","description":"An attractive combination specimen featuring strong color contrast and well-formed crystals. Lustrous microcline of the adularia variety occurs in warm orange crystals perched atop earthy green epidote, with native copper visible between and beneath the microcline. The copper displays a brown-black tarnish that adds depth and contrast to the overall composition. Collected in the early 1970s from a now permanently inaccessible locality.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53381164990737,"sku":"min3140","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/Microcline-Var_-Adularia-and-Native-Copper-mass-mine-shaft-c-michigan-ontonogon-county-mineral-specimen-rare-USA.jpg?v=1783490472"},{"product_id":"min3131microcline-var-adularia","title":"Microcline Var. Adularia","description":"Collected in the early 1970s from the third level of the Mass Mine, Shaft C, Ontonagon County, Michigan, this specimen of adularia (a variety of microcline) represents uncommon material from a locality unlikely to yield new specimens. The adularia crystals display a strong luster and a distinctive warm orange coloration, the result of disseminated copper present within the crystals themselves. A well-crystallized and mineralogically noteworthy thumbnail for collectors with an interest in feldspar varieties or the classic copper-bearing assemblages of Michigan's Upper Peninsula.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53381530222865,"sku":"min3131","price":48.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/Microcline-Var_-Adularia-mass-mine-shaft-c-michigan-ontonogon-county-mineral-specimen-rare-USA_3dbcd08e.jpg?v=1783490502"},{"product_id":"min3141microcline-quartz-epidote","title":"Microcline, Quartz, \u0026 Epidote","description":"Beautiful green epidote with small patched of clear quartz, accented by orange microcline of the adularia variety. Collected in the early 1970s from a now permanently inaccessible locality. A lovely little specimen with high contrast and glittery appearance.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53456721936657,"sku":"min3141","price":20.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/Microcline-Quartz-Epidote-mass-mine-shaft-c-michigan-ontonogon-county-mineral-specimen-rare-USA.jpg?v=1783490530"},{"product_id":"min3217smoky-quartz-and-microcline","title":"Smoky Quartz on Microcline","description":"This dramatic, showy cabinet piece consists of a robust microcline crystal adorned by numerous smoky quartz crystals grouped in attractive clusters. The microcline is lustrous and well defined, with lightly textured broad faces. While the microcline is impressive in its own right, its pairing with really smoky quartz takes it up a notch. Gemmy quartz crystals are strewn about, extending in distinct groupings from the microcline. To top it all off, the largest smoky quartz is actually a gwindel quartz! Though the signature \"twist\" that gwindels are known for is subtle, it still makes an impact to the discerning eye. A truly incredible specimen with big visual impact! ","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":54211082780945,"sku":"min3217","price":750.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3217-smoky-quartz-microcline-cabinet-specimen-large-crystal-skardu-pakistan_2.png?v=1786495026"},{"product_id":"min3260-microcline-feldspar-teller-colorado-mineral-specimen-3-jpgmicrocline","title":"Microcline","description":"A robust cluster of well-formed microcline crystals from Teller County, Colorado. The crystals are blocky and substantial, with sharp terminations and a matte luster throughout. Color is a soft, light peach, giving the piece a warm, understated tone. The overall form is bold and geometric, with multiple crystals intergrown into a well-composed cluster.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":67590903595281,"sku":"min3260","price":42.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3260-microcline-feldspar-teller-colorado-mineral-specimen_3.jpg?v=1790300397"},{"product_id":"min3253quartz-microcline-and-epidote","title":"Quartz, Microcline, and Epidote","description":"An intricate cluster of frosty quartz crystals, several doubly terminated, arising from a matrix of brick red microcline accented with light green epidote. The composition is complex and visually layered, with the quartz crystals rising in varied orientations that give the piece real dimension. This specimen comes from a decades-old collection and is a well-preserved example of Caledonia Mine material, offering an attractive representation of this Michigan locality's distinctive mineral combination.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":67591427195153,"sku":"min3253","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3253-quartz-caledonia-mine-keewenaw-mineral-specimen_4.jpg?v=1790300351"},{"product_id":"min3279microcline-var-amazonite","title":"Microcline Var. Amazonite","description":"Beautiful terminated amazonite crystal with seafoam green coloration and nice luster. A lovely representative of this microcline variety, formerly in the collection of Daniel Hall. ","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":67808692863249,"sku":"min3279","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3279-amazonite-natural-crystal-specimen_8.jpg?v=1792453415"},{"product_id":"min3266prehnite-native-copper-and-microcline","title":"Prehnite, Native Copper, and Microcline","description":"\u003cp\u003eA fine pairing of native copper, prehnite, and microcline from the Osceola Mine in Houghton County, Michigan, and one of the most attractive combinations of these minerals we have encountered. Nestled in a pocket lined with brick-orange microcline crystals, spherical groupings of lustrous prehnite sit alongside metallic crystals of native copper. The blocky terminations of the prehnite flash blue iridescence when rotated in the light, complementing the bright, well-crystallized copper. A beautifully composed piece that showcases the mineralogical diversity of Michigan’s Keweenaw Peninsula.\u003c\/p\u003e\n\u003cp\u003eEx. Sparks Collection.\u003c\/p\u003e\n\u003cp\u003eNote: There is a small amount of glue residue on the underside, left over from a previous display mount. It is not visible from the display sides of the piece.\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":67848500609297,"sku":"min3266","price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3266-prehnite-native-copper-combo-mineral-specimen-osceola-mine_1.jpg?v=1792453487"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/collections\/min3276-amazonite-blue-heaven-claim-teller-colorado-mineral-specimen_9.jpg?v=1792564766","url":"https:\/\/adamantineminerals.com\/collections\/microcline.oembed","provider":"Adamantine Minerals","version":"1.0","type":"link"}