{"product_id":"blue-kyanite-on-quartz-bladed-crystal-growth-with-quartz-matrix","title":"Blue Kyanite on Quartz — Bladed Crystal Growth with Quartz Matrix","description":"\u003cp\u003eBlue Kyanite on Quartz — Bladed Crystal Growth with Quartz Matrix\u003c\/p\u003e\n\u003cp\u003eA sharp, high-contrast blue kyanite cluster on quartz, showing classic elongated blade formations embedded within a natural quartz matrix.\u003c\/p\u003e\n\u003cp\u003eThis piece clearly displays how kyanite grows — in flattened, striated blades, often forming in metamorphic environments where pressure directs crystal growth into long, layered structures. The surrounding quartz adds contrast and highlights the structure, forming a natural “frame” around the kyanite.\u003c\/p\u003e\n\u003cp\u003eThe variation from deep blue to pale blue\/white comes from natural growth zoning and surface weathering, not artificial treatment.\u003c\/p\u003e\n\u003cp\u003e🔍 Key Features\u003c\/p\u003e\n\u003cp\u003e📍 Well-defined bladed kyanite crystals\u003c\/p\u003e\n\u003cp\u003e📍 Strong linear striations along crystal length\u003c\/p\u003e\n\u003cp\u003e📍 Natural quartz matrix with crystalline texture\u003c\/p\u003e\n\u003cp\u003e📍 Blue to silvery-white colour variation\u003c\/p\u003e\n\u003cp\u003e📍 Layered, directional growth pattern\u003c\/p\u003e\n\u003cp\u003e📍 Raw, unpolished structure showing natural formation\u003c\/p\u003e\n\u003cp\u003e📏 Dimensions\u003c\/p\u003e\n\u003cp\u003eSize: 7 cm x 3.6 cm\u003c\/p\u003e\n\u003cp\u003eWeight: 65 grams\u003c\/p\u003e\n\u003cp\u003e🧪 Geological \u0026amp; Scientific Notes\u003c\/p\u003e\n\u003cp\u003ePrimary Mineral: Kyanite\u003c\/p\u003e\n\u003cp\u003eChemical Formula: Al₂SiO₅\u003c\/p\u003e\n\u003cp\u003eCrystal System: Triclinic\u003c\/p\u003e\n\u003cp\u003eMohs Hardness: ~4.5 parallel to length \/ ~6.5–7 across (anisotropic hardness)\u003c\/p\u003e\n\u003cp\u003eLustre: Vitreous to pearly\u003c\/p\u003e\n\u003cp\u003eTransparency: Transparent to translucent\u003c\/p\u003e\n\u003cp\u003eKyanite is known for its anisotropic hardness, meaning it has different hardness depending on the direction — a key identifying property and something rarely seen in most minerals.\u003c\/p\u003e\n\u003cp\u003eThe quartz matrix (SiO₂) forms later or alongside the kyanite, filling gaps and creating a natural composite structure.\u003c\/p\u003e\n\u003cp\u003e🧼 Care\u003c\/p\u003e\n\u003cp\u003eHandle carefully — kyanite blades can be fragile\u003c\/p\u003e\n\u003cp\u003eAvoid pressure along thin edges\u003c\/p\u003e\n\u003cp\u003eDo not submerge for long periods\u003c\/p\u003e\n\u003cp\u003eClean gently with a soft brush or dry cloth\u003c\/p\u003e\n\u003cp\u003e💡 Why This Piece Stands Out\u003c\/p\u003e\n\u003cp\u003eThis is a structure-first specimen, not a polished display piece — and that’s exactly what gives it value.\u003c\/p\u003e\n\u003cp\u003e✔ Clear example of directional crystal growth\u003c\/p\u003e\n\u003cp\u003e✔ Strong contrast between kyanite and quartz\u003c\/p\u003e\n\u003cp\u003e✔ Visible striations and blade formation\u003c\/p\u003e\n\u003cp\u003e✔ Great educational piece for explaining metamorphic minerals\u003c\/p\u003e","brand":"Crystal Ballerz","offers":[{"title":"Default Title","offer_id":53810884968789,"sku":null,"price":15.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1039\/9295\/1125\/files\/rn-image_picker_lib_temp_7803f01e-2cb6-43e9-b559-f1fbdbccea5b.jpg?v=1777803174","url":"https:\/\/crystalballerz.co.uk\/products\/blue-kyanite-on-quartz-bladed-crystal-growth-with-quartz-matrix","provider":"Crystal Ballerz","version":"1.0","type":"link"}