{"product_id":"natural-blue-kyanite-crystals-x-70-from-karoi-zimbabwe-4","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 selected natural fluorescent blue Kyanite crystals. These are selected for colour and have striated crystal formations with black Biotite Mica on them. The pegmatites around Karoi in Zimbabwe generally have grey to blue crystals. These are particularly and specifically picked to be good blue to dark blue with some translucence in them.\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 - 68 mm\u003c\/p\u003e","brand":"KYANITE","offers":[{"title":"Default Title","offer_id":50899071238337,"sku":"190-263-261105BM","price":1624.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2066\/6451\/files\/190263_2.jpg?v=1794476845","url":"https:\/\/www.toprocks.com\/products\/natural-blue-kyanite-crystals-x-70-from-karoi-zimbabwe-4","provider":"Toprock Gemstones and Minerals ","version":"1.0","type":"link"}