{"product_id":"natural-blue-kyanite-crystals-x-2-34-kg-lot-from-karoi-zimbabwe","title":"Natural Blue Kyanite Crystals x 2,34 Kg Lot From Karoi, Zimbabwe","description":"\u003cp\u003e\u003cstrong\u003eA NOTE FROM NICK\u003c\/strong\u003e\u003cbr\u003eA 2,34 Kg lot of selected natural fluorescent blue Kyanite crystals. These have striated sides and are full crystals with black Biotite Mica on them. Whereas most of the Kyanite crystals from the Karoi pegmatites are grey to grey to blue, these are nice blue to deep blue with some translucence in them. Most of this batch would be the right size for making pendants and wire wraps.\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 = 31 - 74 mm\u003c\/p\u003e","brand":"KYANITE","offers":[{"title":"Default Title","offer_id":50886274908353,"sku":"190-191-261103BM","price":2620.8,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2066\/6451\/files\/190191_6.jpg?v=1794321599","url":"https:\/\/www.toprocks.com\/products\/natural-blue-kyanite-crystals-x-2-34-kg-lot-from-karoi-zimbabwe","provider":"Toprock Gemstones and Minerals ","version":"1.0","type":"link"}