{"product_id":"forsterite-gabbs-gabbs-mining-district-nye-county-nevada-usa-copy","title":"Tridymite (polymorph of silica)- San Diego County, California","description":"\u003cp\u003eTridymite (\u003cmeta charset=\"utf-8\"\u003epolymorph of silica)\u003cbr\u003eSan Diego County, California\u003cbr\u003eDimensions: 3.4 x 3.3 x 3.0 cm\u003c\/p\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cmeta charset=\"utf-8\"\u003eTridymite is one of the polymorphs of silica (SiO₂)—chemically identical to quartz, but possessing a different crystal structure. Historical California mineralogical literature notes that recognizable tridymite is comparatively uncommon because much of it occurs at microscopic scale.\u003c\/p\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eRather than displaying obvious individual plates, this piece appears densely aggregated with an almost micaceous texture. The uniformity of the material makes this a particularly useful systematic example rather than a conventional display crystal.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTridymite is indeed recorded from San Diego County, including historical occurrences around Fallbrook, while modern records also document it elsewhere in the county.\u003c\/p\u003e","brand":"The Crystalary","offers":[{"title":"Default Title","offer_id":47924161052803,"sku":"barry337-dr1-1of3","price":28.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0390\/4634\/8931\/files\/IMG_5378.jpg?v=1787109621","url":"https:\/\/www.thecrystalary.com\/products\/forsterite-gabbs-gabbs-mining-district-nye-county-nevada-usa-copy","provider":"The Crystalary","version":"1.0","type":"link"}