{"product_id":"natural-blue-kyanite-crystals-x-70-from-karoi-zimbabwe-3","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 selected and cleaned natural fluorescent blue Kyanite crystals. These are a very nice lot, selected for good colour, with striated sides and black Biotite Mica. Most of the Kyanite crystals from the Karoi pegmatites are grey to blue, but these have been picked for having good blue to dark blue colour, with some measure of translucency in many of the crystals. Ideal for making pendants or as specimens.\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 = 35 - 63 mm\u003c\/p\u003e","brand":"KYANITE","offers":[{"title":"Default Title","offer_id":50881183154369,"sku":"190-139-261102BM","price":1400.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2066\/6451\/files\/190139_9.jpg?v=1794235423","url":"https:\/\/www.toprocks.com\/products\/natural-blue-kyanite-crystals-x-70-from-karoi-zimbabwe-3","provider":"Toprock Gemstones and Minerals ","version":"1.0","type":"link"}