{"product_id":"natural-blue-kyanite-crystals-x-70-from-karoi-zimbabwe-5","title":"Natural Blue Kyanite Crystals x 70 From Karoi, Zimbabwe","description":"\u003cp\u003e\u003cstrong\u003eA NOTE FROM NICK\u003c\/strong\u003e\u003cbr\u003eA large flat of 70 small cleaned and selected fluorescent blue Kyanite single crystals. These are all unique natural full crystals with striated sides. Whereas most of the Kyanite crystals from the Karoi pegmatites are grey to blue, these are all picked to be good to very deep blue, some with some nice translucence.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePRODUCT DESCRIPTION\u003c\/strong\u003e\u003cbr\u003eKyanite is an aluminium silicate mineral that forms in high-pressure metamorphic rocks. It forms long, flat, blade like crystals in light to deep blue, with a glassy to pearly lustre, and some pieces are fluorescent under UV light. It has a Mohs hardness of 4.5 to 7, softer along the length of the blade than across it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePRODUCT DATA\u003c\/strong\u003e\u003cbr\u003eLocality = Karoi, Zimbabwe\u003cbr\u003eGrade = Good to A Grade\u003cbr\u003eSize = 44 - 76 mm\u003c\/p\u003e","brand":"KYANITE","offers":[{"title":"Default Title","offer_id":50919090028737,"sku":"190-283-261107BM","price":1582.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2066\/6451\/files\/190283_5.jpg?v=1794494518","url":"https:\/\/www.toprocks.com\/products\/natural-blue-kyanite-crystals-x-70-from-karoi-zimbabwe-5","provider":"Toprock Gemstones and Minerals ","version":"1.0","type":"link"}