{"title":"Sylvania Minerals Quarry","description":"\u003ch2\u003eBerlin Charter Township, Monroe County, Michigan, USA\u003c\/h2\u003e\n\u003cp\u003eLocated in Monroe County, Michigan, just a few miles from the well-known Holloway Quarry, the Sylvania Minerals Quarry is recognized among collectors for its exceptional celestine and calcite specimens. Celestine from this locality exhibits notable diversity, ranging from distinctive blocky crystals (usually associated with fine white \"snowball\" calcites) to lustrous groups of tabular crystals in radial arrangements with slight offsets from parallel growth. Calcite occurs in a spectrum of colors including white, golden-yellow, and dark brown. Notably, some specimens display a striking golden hue paired with a characteristic waxy luster, earning them the local designation \"honey calcite.\"\u003c\/p\u003e","products":[{"product_id":"collectors-celestite-thumbnail-mineral-specimen-unique-celestite-from-michigan-with-well-formed-crystals","title":"Celestine","description":"\u003cp\u003eImpressive group of celestite crystals with parallel growth formations, beautiful terminations, excellent luster. The celestite crystals have an unique tabular shape with glittery calcite crystals. This beautiful mineral is well loved for its beautifully shaped orthorhombic crystals, vitreous luster, and colorless to blue coloration. It forms in sedimentary environments and is often found in association with calcite and fluorite. This lovely specimen comes from Sylvania Aggregates Quarry, a primary supplier of aggregates to the Great Lakes Region. Specimens from this locality are uncommon, due to the limited access allowed to mineral collecting clubs. \u003c\/p\u003e\n\u003cp\u003eWeight: 6.47 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51235991683345,"sku":"cls31","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/cba48902-il_fullxfull.6142247889_2swf.jpg?v=1741060422"},{"product_id":"celestite-crystal-on-dolostone-matrix-with-glittery-calcite-coating-from-sylvania-aggregates-quarry-in-monroe-county-michigan","title":"Celestine","description":"\u003cp\u003eGorgeous celestite specimen from Monroe County, Michigan. Features a beautiful orthorhombic celestite situated on a dolostone matrix and wrapped in hundreds of glittery calcites. An aesthetic specimen with the termination of the crystal peeking up through the calcites. Perfect for collectors who prefer smaller, ideal specimens with a lot of character.  \u003c\/p\u003e\n\u003cp\u003eWeight: 6.58 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51235992076561,"sku":"cls39","price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/33504fba-il_fullxfull.6426905059_mnrf.jpg?v=1741060425"},{"product_id":"large-orthorhombic-celestine-crystal-with-sugar-calcite-from-rockwood-quarry-in-michigan-usa","title":"Celestine","description":"\u003cp\u003eLarge celestite crystal with excellent luster and glittery sugar calcite. This specimen is a great representation of Michigan celestite.\u003c\/p\u003e\n\u003cp\u003eWeight: 80.32 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51235992240401,"sku":"cls33","price":52.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/cls00x_3_of_6.jpg?v=1779211359"},{"product_id":"exceptional-celestine-specimen-with-interesting-radially-arranged-crystallization-from-sylvania-minerals-quarry-in-monroe-co-mi-43-mm","title":"Celestine","description":"\u003cp\u003ePhenomenal in both crystal arrangement and luster, this fine celestine specimen displays fantastic radial formation with hundreds of glistening faces. I've noticed this interesting habit in a handful of few pieces I've collected from this locale, however, few have such a sculptural appearance to them. They're somewhat reminiscent of the shape of gwindel quartz, as each crystal looks to be rotated around some axis. From the Sylvania Minerals Quarry in Monroe County MI, located just 6 miles from the more well-known Holloway Quarry. I collected this piece myself in the summer of 2023.\u003c\/p\u003e\n\u003cp\u003eWeight: 36.89 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51235993387281,"sku":"cls48","price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/cls34.png?v=1780711973"},{"product_id":"zoned-celestite-crystal-with-unique-coloration-from-holloway-quarry-natural-michigan-crystal-specimen","title":"Celestine","description":"\u003cp\u003eLarge single celestite crystal with blue rim and colorless core zonation. An attractive specimen with nice chunky shape and large faces.\u003c\/p\u003e\n\u003cp\u003eWeight: 25.08 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51235994108177,"sku":"cls25","price":35.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/ff2d68f8-il_fullxfull.6108444342_gs1a.jpg?v=1741060423"},{"product_id":"calcite-with-strontantinite-specimen-with-excellent-luster-snowball-calcite-from-michigan-46-mm","title":"Calcite with Strontianite","description":"\u003cp\u003eGorgeous calcite specimen with glittery white crystals in spheroidal arrangement. \u003c\/p\u003e\n\u003cp\u003eWeight: 17.36 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51235995844881,"sku":"cal41","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/b2e8479e-il_fullxfull.6331661799_a4j6.jpg?v=1741060423"},{"product_id":"celestite-with-sulfur-inclusion-zoned-celestite-specimen-from-michigan-usa","title":"Celestine","description":"\u003cp\u003eBeautiful blue celestite crystal specimen with small sulfur inclusion and blue rim with gray core zoning. Nice chunky celestite crystal with attractive color zoning. \u003c\/p\u003e\n\u003cp\u003eWeight: 27.93 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51235996664081,"sku":"cls21","price":34.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/900dff5f-il_fullxfull.6355544839_884w.jpg?v=1749008827"},{"product_id":"snowball-calcite-druzy-with-strontianite-raw-pocket-specimen-35-mm","title":"Calcite with Strontianite","description":"\u003cp\u003eGlittery calcite crystals with white strontianite crystals. Specimen has thousands of tiny calcites with rhombohedral crystal forms form and bright white strontianite crystals. This crystal specimen comes from a dolostone pocket in the Sylvania Minerals Quarry in Michigan, USA. S\u003c\/p\u003e\n\u003cp\u003eWeight: 12.20 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51235996533009,"sku":"cal25","price":16.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/4b311359-il_fullxfull.6235936562_6o8q.jpg?v=1741060423"},{"product_id":"celestite-mineral-specimen-from-holloway-quarry-in-michigan-22-mm-celestite-with-snowball-calcite-crystals","title":"Celestine","description":"\u003cp\u003eBeautiful celestite crystal with termination, snowball calcite crystals, cleaved side. A lovely crystal from a classic Michigan locality. \u003c\/p\u003e\n\u003cp\u003eWeight: 6.95 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51235997286673,"sku":"cls36","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/30e573aa-il_fullxfull.6468113503_86pz.jpg?v=1741060424"},{"product_id":"calcite-on-matrix-with-waxy-luster-from-sylvania-minerals-quarry-calcite-mineral-specimen-from-michigan-32-mm","title":"Calcite","description":"\u003cp\u003eBeautiful calcite crystal cluster on dolostone matrix with excellent waxy luster. The well-formed rhombohedral calcite crystals are situated upon a glittery dolostone matrix. Gorgeous specimen from a classic Michigan locality. See dimensions below. \u003c\/p\u003e\n\u003cp\u003eWeight: 27.58 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51235998597393,"sku":"cal43","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/e57ddc5b-il_fullxfull.6240545830_qrez.jpg?v=1741060424"},{"product_id":"honey-calcite-on-matrix-with-waxy-luster-from-michigan-usa-32-mm","title":"Calcite","description":"\u003cp\u003eExcellent golden-colored calcite crystals situated upon a shimmering layer of tiny calcite crystals on a dolostone matrix. Gorgeous specimen from a uncommon Michigan locality. \u003c\/p\u003e\n\u003cp\u003eWeight: 7.61 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51235998564625,"sku":"cal21","price":16.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/f1073f1c-il_fullxfull.6235928206_mr63.jpg?v=1741060426"},{"product_id":"excellent-calcite-specimen-with-celestite-from-sylvania-minerals-quarry-in-michigan-32-mm","title":"Calcite","description":"\u003cp\u003eAttractive and well-formed calcite crystal with termination on matrix, with associated gray-blue celestite. A coating of tiny, gemmy, calcite crystals give the matrix a beautiful sparkly appearance.\u003c\/p\u003e\n\u003cp\u003eWeight: 12.48 grams\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51235998466321,"sku":"cal23","price":30.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/77546c2f-il_fullxfull.6283978577_lffp.jpg?v=1741060424"},{"product_id":"calcite-vug-crystal-in-dolostone-with-yellow-coloration-and-aesthetic-arrangement-57-mm","title":"Calcite","description":"\u003cp\u003eRhombohedral golden calcite crystal nestled in a pocket in dolostone matrix. Gorgeous specimen from a classic Michigan locality. Calcite is renowned for its diverse crystal forms and vibrant colors, ranging from colorless to brilliant shades. This captivating mineral often forms in sedimentary rocks through the precipitation of calcium-rich waters. As these waters evaporate over time, stunning calcite crystals are left behind. Michigan calcite is particularly prized, typically found in limestone and dolostone quarries beneath many layers of bedrock.\u003c\/p\u003e\n\u003cp\u003eWeight: 44.82 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51235998531857,"sku":"cal22","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/1eb7223a-il_fullxfull.6176648897_lc8l.jpg?v=1741060424"},{"product_id":"natural-honey-calcite-specimen-from-michigan-rhombohedral-calcites-on-matrix-with-golden-color","title":"Calcite","description":"\u003cp\u003eBeautiful golden calcite crystals on a dolostone matrix. A gorgeous Michigan specimen with great luster and color.\u003c\/p\u003e\n\u003cp\u003eWeight: 12.78 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51235998728465,"sku":"cal42","price":22.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/37b54421-il_fullxfull.6240525230_caj1.jpg?v=1741060424"},{"product_id":"golden-calcite-mineral-specimen-yellow-crystals-on-sparkly-calcite-coated-matrix-from-sylvania-minerals-quarry-in-michigan-42-mm","title":"Calcite","description":"\u003cp\u003eBeautiful golden-colored calcite crystals situated upon a shimmering layer of tiny calcite crystals on a dolostone matrix.\u003c\/p\u003e\n\u003cp\u003eWeight: 31.45 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51235999187217,"sku":"cal40","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/0d7db727-il_fullxfull.6224888636_lyqr.jpg?v=1741060424"},{"product_id":"honey-calcite-crystal-with-waxy-luster-on-dolostone-from-sylvania-minerals-quarry-in-michigan-usa-48-mm","title":"Calcite","description":"\u003cp\u003eA beautiful honey calcite crystal perched upon a dolostone matrix. A well-formed crystal with waxy luster.\u003c\/p\u003e\n\u003cp\u003eWeight: 76.48 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51236000235793,"sku":"cal48","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/95b28c12-il_fullxfull.6506966556_7onw.jpg?v=1741060423"},{"product_id":"yellow-calcite-crystals-with-great-luster-and-curved-faces-from-sylvania-minerals-quarry-in-michigan-usa-61-mm","title":"Calcite","description":"\u003cp\u003eAwesome golden-yellow calcites with great luster and interesting curved faces on dolostone. A beautiful Michigan specimen with well-formed crystals. Sits upright or lays flat for display, but should be supported if displayed upright (with a stand or mineral putty) for added security. \u003c\/p\u003e\n\u003cp\u003eWeight: 63.43 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51236000268561,"sku":"cal49","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/dbd29495-il_fullxfull.6506960674_7udn.jpg?v=1741060423"},{"product_id":"beautiful-calcite-cluster-on-dolostone-from-sylvania-minerals-quarry-in-michigan-usa-56-mm","title":"Calcite","description":"\u003cp\u003eExcellent mineral specimen with distinct, well-formed, calcite crystals on dolostone. Features light amber-yellow crystals with good luster and aesthetic arrangement. \u003c\/p\u003e\n\u003cp\u003eWeight: 155.9 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51236000399633,"sku":"cal47","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/a8fa036d-il_fullxfull.6553264601_7vsp.jpg?v=1741060424"},{"product_id":"golden-yellow-calcite-from-sylvania-minerals-quarry-in-monroe-county-michigan-51-mm","title":"Calcite","description":"\u003cp\u003eBeautiful calcite specimen featuring a sharp calcite crystal accented by fine glittery crystals. A group of medium calcites sit tucked alongside a glittery sugar calcite coating. Can be easily sat upright or lay on flat for display.\u003c\/p\u003e\n\u003cp\u003eWeight: 62.81 grams\u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51236000727313,"sku":"cal46","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/6ee6d8c1-il_fullxfull.6552936469_rsr8.jpg?v=1741060424"},{"product_id":"yellow-calcite-crystals-with-great-luster-and-curved-faces-from-sylvania-minerals-quarry-in-michigan-usa-47-mm","title":"Calcite","description":"\u003cp\u003eBeautiful golden-yellow calcite crystals with a lovely waxy luster and curved faces. A great piece for any collection in need of a Michigan specimen. \u003c\/p\u003e\n\u003cp\u003eWeight: 49.84 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51236000563473,"sku":"cal45","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/5a652721-il_fullxfull.6504752714_n35t.jpg?v=1741060423"},{"product_id":"stunning-large-celestite-display-specimen-natural-blue-celestite-crystal-from-holloway-quarry","title":"Celestine","description":"\u003cp\u003eGorgeous large celestite specimen with beautiful luster and coloration. From a classic Michigan locality. The mineral celestite, also known as celestine, is well loved for its beautifully shaped orthorhombic crystals and iconic steel-gray-blue color. It forms in sedimentary environments and can be found in association with calcite, sulfur, and fluorite. \u003c\/p\u003e\n\u003cp\u003eWeight: 905 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51236002201873,"sku":"cls34-lg","price":165.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/9ce114ea-il_fullxfull.6198240739_8278.jpg?v=1741060427"},{"product_id":"celestite-display-piece-from-michigan-cabinet-specimen-with-large-steel-blue-crystals-and-sugar-calcite","title":"Celestine","description":"\u003cp\u003eStunning celestite cluster with glittery, sugar calcite on dolostone matrix. Beautiful coloration and orthorhombic crystal forms. A great piece to display on a shelf, desk, or in a mineral cabinet! \u003c\/p\u003e\n\u003cp\u003eWeight: 330 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51236002398481,"sku":"cls35-lg","price":150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/afaca4cd-il_fullxfull.6150131458_on08.jpg?v=1741060423"},{"product_id":"golden-calcite-crystals-on-dolostone-matrix-from-michigan-with-rhombohedral-crystal-form","title":"Calcite","description":"\u003cp\u003eStunning calcite on dolostone matrix with golden-honey coloration. Well-formed rhombohedral calcite crystals with waxy luster from a classic Michigan locality. Calcite is renowned for its diverse crystal forms and vibrant colors, ranging from colorless to brilliant shades. This captivating mineral often forms in sedimentary rocks through the precipitation of calcium-rich waters. As these waters evaporate over time, stunning calcite crystals are left behind. Michigan calcite is particularly prized, frequently found in limestone and dolostone quarries beneath many layers of bedrock. \u003c\/p\u003e\n\u003cp\u003eWeight: 116.13 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51236002824465,"sku":"cal36","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/51629dc5-il_fullxfull.6128219062_ly4i.jpg?v=1741060424"},{"product_id":"celestine-with-dolostone-from-great-lakes-aggregates-quarry-in-michigan-usa-natural-celestite-crystal-with-inclusions","title":"Celestine","description":"\u003cp\u003eLovely celestite specimen with fantastic luster and great clarity- allows you to see the dolostone within the glassy faces of this natural crystal. \u003c\/p\u003e\n\u003cp\u003eWeight: 10.18 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51236003414289,"sku":"cls44","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/4a8544d9-il_fullxfull.6413909012_n388.jpg?v=1741060423"},{"product_id":"celestine-with-sugar-calcite-thumbnail-specimen-michigan-celestite-crystal-13-mm","title":"Celestine","description":"\u003cp\u003eAn awesome little celestine thumbnail specimen with great luster and a thick sugar calcite coating. Perfect for a celestite collector seeking thumbnails from various localities.\u003c\/p\u003e\n\u003cp\u003eWeight: 3.18 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51236003479825,"sku":"cls43","price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/17fed859-il_fullxfull.6413863750_fcq4.jpg?v=1741060423"},{"product_id":"celestite-with-calcite-thumbnail-specimen-with-parallel-growth-crystal-formation-michigan-raw-mineral-specimen","title":"Celestine","description":"\u003cp\u003eBeautiful celestite and calcite thumbnail specimen displaying parallel growth crystal formation, nice luster, and aesthetic crystal arrangement. \u003c\/p\u003e\n\u003cp\u003eWeight: 3.46 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51236003447057,"sku":"cls32","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/2ed7beeb-il_fullxfull.6156511561_ay3p.jpg?v=1741060423"},{"product_id":"celestine-on-dolostone-with-exceptional-luster-from-great-lakes-aggregates-quarry-michigan-usa","title":"Celestine","description":"\u003cp\u003eBeautiful celestine crystals perched on a dolostone matrix. A great specimen that well represents high-quality Michigan celestine. This beautiful mineral is well loved for its beautifully shaped orthorhombic crystals, vitreous luster, and colorless to blue coloration. It forms in sedimentary environments and is often found in association with calcite and fluorite. This lovely specimen comes from Sylvania Aggregates Quarry, a primary supplier of aggregates to the Great Lakes Region. Specimens from this locality are uncommon, due to the limited access allowed to mineral collecting clubs. \u003c\/p\u003e\n\u003cp\u003eWeight: 21.68 grams  \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51236003512593,"sku":"cls45","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/d326f470-il_fullxfull.6460747341_d39w.jpg?v=1741060429"},{"product_id":"calcite-on-matrix-with-golden-honey-coloration-from-sylvania-minerals-quarry-michigan-mineral-specimen","title":"Calcite","description":"\u003cp\u003eStunning calcite on dolostone matrix with golden coloration and waxy luster. A beautiful, crystal-coated, mineral specimen from a rare Michigan locality. Calcite is renowned for its diverse crystal forms and vibrant colors, ranging from colorless to brilliant shades. This captivating mineral often forms in sedimentary rocks through the precipitation of calcium-rich waters. As these waters evaporate over time, stunning calcite crystals are left behind. Michigan calcite is particularly prized, typically found in limestone and dolostone quarries beneath many layers of bedrock.\u003c\/p\u003e\n\u003cp\u003eWeight: 60.46 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51236003709201,"sku":"cal33","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/eb5ff0cd-il_fullxfull.6147052235_i4tp.jpg?v=1741060426"},{"product_id":"honey-calcite-on-matrix-rockwood-quarry-mineral-specimen-38-mm","title":"Calcite","description":"\u003cp\u003eLovely golden-colored calcite crystals situated upon a glittery, calcite-coated dolostone matrix. Gorgeous specimen from a Michigan locality. Calcite is renowned for its diverse crystal forms and vibrant colors, ranging from colorless to brilliant shades. This captivating mineral often forms in sedimentary rocks through the precipitation of calcium-rich waters. As these waters evaporate over time, stunning calcite crystals are left behind. Michigan calcite is particularly prized, typically found in limestone and dolostone quarries beneath many layers of bedrock.\u003c\/p\u003e\n\u003cp\u003eWeight: 18.97 grams \u003c\/p\u003e","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51236003676433,"sku":"cal34","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/4a191878-il_fullxfull.6147038507_sz9t.jpg?v=1741060424"},{"product_id":"mineral-collectioncalcitemin1874mineral","title":"Calcite","description":"A sharp and aesthetic specimen from the Sylvania Minerals Quarry, featuring golden yellow rhombohedral crystals perched on matrix. The calcite displays stepped crystal faces and excellent waxy luster, with a color that stands out as excellent for the locality. Michigan specimens of this caliber are seldom seen on the market today, as collecting access to the quarry is limited to just a few organized field trips each year.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51585812496657,"sku":"min1874","price":45.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min1874_3.jpg?v=1748738490"},{"product_id":"mineral-collectioncelestine-calcitemin1918mineral","title":"Celestine \u0026 Calcite","description":"This sharp blocky celestine crystal displays a light blue-gray translucency and a soft matte luster. Wisps of sulfur inclusions dance within the faces, while tiny white calcite growths nestle in subtle etch pits. Collected in April 2024 from Sylvania Minerals Quarry in Rockwood, Michigan, this classic specimen is rare due to limited annual access by only a handful of mineral clubs.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51617961902353,"sku":"min1918","price":52.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min1918_1.jpg?v=1748752887"},{"product_id":"min1929calcite","title":"Calcite","description":"A single golden yellow calcite crystal in excellent condition, displaying a beautiful waxy luster and distinctive stepped faces. The crystal sits gracefully on a sandy dolostone matrix, with the vibrant yellow color making it especially striking. This piece offers an impressive example of calcite from this locality, showcasing both great color and texture.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51656289517841,"sku":"min1929","price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min1929-1638.jpg?v=1749185852"},{"product_id":"min1939celestine-calcite","title":"Celestine \u0026 Calcite","description":"An excellent celestine specimen with vitreous luster and fine sugar calcites embedded across the crystal faces. The piece displays attractive coloration and a unique curved shape. Sourced from the Sylvania Minerals Quarry.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51687798735121,"sku":"min1939","price":50.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min1939-6.jpg?v=1749491955"},{"product_id":"min1966celestine-calcite","title":"Calcite \u0026 Celestine","description":"Warm honey-gold calcite crystals line a dolostone matrix from the Sylvania Minerals Quarry, South Rockwood, Monroe Co., Michigan. The calcites show the soft, waxy luster and sharp faces for which the locality is known, ranging from stout scalenohedra to crisp rhombs. Nestled alongside, a cluster of faint blue celestine offers a cool color contrast and a different crystal habit, creating an appealing two-species composition. Fine drusy of calcite along the rim adds extra sparkle without distracting from the main pairing. Choice Michigan combo specimen for  collectors!","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51741088121105,"sku":"min1966","price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min1966_3.jpg?v=1750872321"},{"product_id":"min2009celestine-calcite","title":"Celestine \u0026 Calcite","description":"Beautiful cluster of celestine crystals with attached matrix and sugar calcite crystals. The luster of the celestines is glassy and glistens in good lighting. An awesome Michigan specimen!","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51878537396497,"sku":"min2009","price":28.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min2009_3.jpg?v=1759955159"},{"product_id":"min2010celestine-calcite","title":"Celestine \u0026 Calcite","description":"A sharp, well-formed single crystal of glassy celestine with a faint blue hue and fine sugar calcites embedded in the faces. This attractive specimen is a 2024 find from Sylvania Minerals Quarry in Monroe County, MI. An overall lovely crystal with superb luster and sharp edges.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":51881235513617,"sku":"min2010","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min2010_5.jpg?v=1759955159"},{"product_id":"min2061calcite","title":"Calcite","description":"Deep brown calcite forming crisp rhombic crystals with a bright vitreous-to-waxy luster. The crystals are densely clustered with good definition along edges and terminations, giving the piece a textured, three-dimensional surface. From the Sylvania Minerals Quarry, Monroe County, Michigan—an appealing Midwest locality example that shows the classic rhombic habit and rich color.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":52514211037457,"sku":"min2061","price":34.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min2061_1.jpg?v=1761183674"},{"product_id":"min2095celestine-calcite","title":"Celestine \u0026 Calcite","description":"A superb celestine specimen from Sylvania Minerals Quarry, Michigan, exhibiting complex parallel growth with multiple aligned terminations along its length. The crystal shows sharp faces with excellent vitreous luster and is accompanied by secondary calcite growth on the reverse side. An outstanding example from this seldom-seen Michigan locality.","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":52710510330129,"sku":"min2095","price":150.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min2095_6_of_7.jpg?v=1762881571"},{"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":"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":"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":"min3166calcite","title":"Calcite","description":"Sylvania Minerals Quarry has produced top-tier specimens of calcite and celestine for many decades, two of the classic mineral species associated with Michigan's Lower Peninsula. The state of Michigan serves as a textbook example of a sedimentary basin: a low area of Earth's crust in which sediment accumulates and eventually becomes rock. When the bedrock layers of a sedimentary basin are mapped, the aerial view appears as a \"bullseye\" shape, with the youngest deposits in the center and the oldest at the outermost ring. Because of this, quarries in southeast Michigan are able to access the Bois Blanc Formation, a Devonian-aged geological unit made up of limestone and dolostone. Certain layers of the Bois Blanc Formation contain crystal-filled pockets, or \"vugs,\" where these fabulous celestine and calcite crystals are found. Since these layers are only exposed in aggregate quarries, very few specimens make it out to the mineral collecting market. Collecting in these quarries, such as the Sylvania Minerals Quarry, is limited to a few sanctioned field trips per year. This means only a small fraction of specimens survive the mining process, and even fewer become available for purchase by collectors.\n\nThis calcite crystal is a pristine representative of the calcites that occur in the Sylvania Minerals Quarry. It showcases several of the most sought-after features: rich golden coloration, an almost rounded rhombohedral form, crisp edges, and stepped growth along the faces. It has an appealing waxy luster that catches light beautifully and highlights the intricate surface texture. Specimens from this locality of this size and quality are not easy to come by!","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53626286375185,"sku":"min3166","price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3166_6_of_8.jpg?v=1780956464"},{"product_id":"min3168celestite-and-calcite","title":"Celestite and Calcite","description":"A stunning celestine crystal cluster with countless terminations, accented by a glittery layer of cream-colored calcite. With its impressive form and excellent luster, this celestine specimen is sure to stand out in any collection of fine minerals. Specimens of this caliber from the Sylvania Minerals Quarry are few and far between. \n\nSylvania Minerals Quarry has produced top-tier specimens of calcite and celestine for many decades, two of the classic mineral species associated with Michigan's Lower Peninsula. The state of Michigan serves as a textbook example of a sedimentary basin: a low area of Earth's crust in which sediment accumulates and eventually becomes rock. When the bedrock layers of a sedimentary basin are mapped, the aerial view appears as a \"bullseye\" shape, with the youngest deposits in the center and the oldest at the outermost ring. Because of this, quarries in southeast Michigan are able to access the Bois Blanc Formation, a Devonian-aged geological unit made up of limestone and dolostone. Certain layers of the Bois Blanc Formation contain crystal-filled pockets, or \"vugs,\" where these fabulous celestine and calcite crystals are found. Since these layers are only exposed in aggregate quarries, very few specimens make it out to the mineral collecting market. Collecting in these quarries, such as the Sylvania Minerals Quarry, is limited to a few sanctioned field trips per year. This means only a small fraction of specimens survive the mining process, and even fewer become available for purchase by collectors.\n\n","brand":"Adamantine Minerals","offers":[{"title":"Default Title","offer_id":53626320355601,"sku":"min3168","price":160.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/files\/min3168_3_of_9.jpg?v=1780956431"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/2277\/3009\/collections\/cls48-8_df086ff1-831c-4548-95a9-40b1f1d95143.jpg?v=1770337358","url":"https:\/\/adamantineminerals.com\/collections\/sylvania-minerals-quarry-crystals.oembed","provider":"Adamantine Minerals","version":"1.0","type":"link"}