{"product_id":"natural-schorl-black-tourmaline-crystalline-specimens-on-feldspar-and-quartz-matrix-x-2-from-erongo-namibia","title":"Natural Schorl Black Tourmaline Crystalline Specimens on Feldspar and Quartz Matrix x 2 From Erongo, Namibia","description":"\u003cp\u003e\u003cstrong\u003eA NOTE FROM NICK\u003c\/strong\u003e\u003cbr\u003eA pair of natural shiny Schorl Black Tourmaline crystalline specimens. Both of these are decent cabinet sized pieces with well formed prismatic mirror shiny black crystals in white Feldspar and Quartz matrix. They are from the Erongo Mountains in Namibia.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePRODUCT DESCRIPTION\u003c\/strong\u003e\u003cbr\u003eBlack Tourmaline, known as Schorl, is the iron-rich member of the Tourmaline group, a complex borosilicate. It forms long prismatic crystals with strong lengthwise striations and a rounded triangular cross-section, in jet black, with a glassy to resinous lustre. It has a Mohs hardness of 7 to 7.5.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePRODUCT DATA\u003c\/strong\u003e\u003cbr\u003eLocality = Erongo, Namibia\u003cbr\u003eGrade = Good to A Grade\u003cbr\u003eSize = 122 - 123 mm\u003c\/p\u003e","brand":"TOURMALINE - Black Schorl","offers":[{"title":"Default Title","offer_id":50881163526337,"sku":"190-135-261102BM-180-568","price":2072.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2066\/6451\/files\/190135_3.jpg?v=1794235174","url":"https:\/\/www.toprocks.com\/products\/natural-schorl-black-tourmaline-crystalline-specimens-on-feldspar-and-quartz-matrix-x-2-from-erongo-namibia","provider":"Toprock Gemstones and Minerals ","version":"1.0","type":"link"}