{"product_id":"apophyllite-with-stilbite-and-heulandite-a-natural-india","title":"Apophyllite with stilbite and heulandite (A) — natural, India","description":"\u003cp class=\"p1\"\u003eA natural cluster of apophyllite, stilbite, and red heulandite from the Deccan Traps of Maharashtra, India, one of the largest volcanic regions on Earth. Specimens like this grow inside gas pockets in ancient basalt, where mineral-rich water crystallised different minerals together in the same cavity over millions of years. The clear-to-white apophyllite forms sharp, blocky crystals; the stilbite grows in softer sheaf-like clusters; and the red-orange heulandite takes its warm colour from natural iron staining.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003e\u003cstrong\u003eMineral:\u003c\/strong\u003e \u003c\/b\u003eApophyllite (KCa₄(Si₈O₂₀)(F,OH)·8H₂O), stilbite and heulandite (zeolite group aluminosilicates)\u003cb\u003e\u003cbr\u003e\u003cstrong\u003eCrystal system:\u003c\/strong\u003e \u003c\/b\u003eApophyllite tetragonal; stilbite and heulandite monoclinic\u003cb\u003e\u003cbr\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e \u003c\/b\u003eDeccan Traps, Maharashtra, India\u003cb\u003e\u003cbr\u003e\u003cstrong\u003eHardness:\u003c\/strong\u003e \u003c\/b\u003e4.5 to 5 for apophyllite, 3 to 4 for the zeolites; a soft, delicate specimen, handle by the base\u003cb\u003e\u003cbr\u003e\u003cstrong\u003eTreatment:\u003c\/strong\u003e \u003c\/b\u003eNone\u003cb\u003e\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e \u003c\/b\u003e10 × 7.5 × 3.47 cm\u003cb\u003e\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e \u003c\/b\u003e346 g\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eYou'll receive the exact piece photographed.\u003c\/p\u003e","brand":"The Crystal Showroom","offers":[{"title":"Default Title","offer_id":57947150680408,"sku":null,"price":56.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0778\/4880\/5720\/files\/asrh-a-3.jpg?v=1786616225","url":"https:\/\/thecrystalshowroom.com\/products\/apophyllite-with-stilbite-and-heulandite-a-natural-india","provider":"The Crystal Showroom","version":"1.0","type":"link"}