{"product_id":"aaa-diamond-apophyllite-on-blue-chalcedony-with-peach-stilbite","title":"AAA Diamond Apophyllite on Blue Chalcedony with Peach Stilbite","description":"\u003cp\u003eAAA Diamond Apophyllite on Blue Chalcedony with Peach Stilbite\u003c\/p\u003e\n\u003cp\u003eOverview\u003c\/p\u003e\n\u003cp\u003eThis striking specimen features a cluster of high-clarity “diamond” apophyllite crystals emerging from a deep blue chalcedony matrix, accented by soft peach stilbite blades. The combination of sharp, reflective apophyllite terminations and the textured botryoidal chalcedony creates a strong visual contrast, while the stilbite adds a secondary mineral layer that enhances both structure and rarity.\u003c\/p\u003e\n\u003cp\u003eThe piece has a natural, sculptural form with a raised crystal cluster sitting prominently on the surface, making it ideal as a display specimen.\u003c\/p\u003e\n\u003cp\u003eKey Features\u003c\/p\u003e\n\u003cp\u003eMinerals: Apophyllite, Chalcedony (Quartz), Stilbite\u003c\/p\u003e\n\u003cp\u003eGrade: AAA (excellent crystal definition, strong lustre, balanced composition)\u003c\/p\u003e\n\u003cp\u003eColour:\u003c\/p\u003e\n\u003cp\u003eColourless to transparent apophyllite\u003c\/p\u003e\n\u003cp\u003eDeep blue-grey chalcedony base\u003c\/p\u003e\n\u003cp\u003eSoft peach stilbite crystals\u003c\/p\u003e\n\u003cp\u003eCrystal System:\u003c\/p\u003e\n\u003cp\u003eApophyllite: Tetragonal\u003c\/p\u003e\n\u003cp\u003eStilbite: Monoclinic\u003c\/p\u003e\n\u003cp\u003eFormation:\u003c\/p\u003e\n\u003cp\u003eBotryoidal chalcedony base formed first\u003c\/p\u003e\n\u003cp\u003eApophyllite crystallised from hydrothermal fluids\u003c\/p\u003e\n\u003cp\u003eStilbite formed later, depositing between and around existing crystals\u003c\/p\u003e\n\u003cp\u003eLustre:\u003c\/p\u003e\n\u003cp\u003eApophyllite: High vitreous (glass-like)\u003c\/p\u003e\n\u003cp\u003eChalcedony: Waxy to dull\u003c\/p\u003e\n\u003cp\u003eStilbite: Pearly to vitreous\u003c\/p\u003e\n\u003cp\u003eTransparency:\u003c\/p\u003e\n\u003cp\u003eApophyllite: Transparent\u003c\/p\u003e\n\u003cp\u003eChalcedony: Opaque to translucent\u003c\/p\u003e\n\u003cp\u003eStilbite: Translucent\u003c\/p\u003e\n\u003cp\u003eDimensions\u003c\/p\u003e\n\u003cp\u003eWeight: 366 grams\u003c\/p\u003e\n\u003cp\u003eSize: 8.5 cm x 6.5 cm\u003c\/p\u003e\n\u003cp\u003eGeological \u0026amp; Scientific Notes\u003c\/p\u003e\n\u003cp\u003eThis is a classic Deccan Trap–style zeolite formation:\u003c\/p\u003e\n\u003cp\u003eChalcedony (SiO₂) forms as a microcrystalline silica lining volcanic cavities, often developing botryoidal (rounded) textures\u003c\/p\u003e\n\u003cp\u003eApophyllite (hydrated potassium calcium silicate) crystallises from later hydrothermal fluids, forming well-defined prismatic crystals with flat terminations\u003c\/p\u003e\n\u003cp\u003eStilbite (a zeolite mineral) forms during the later stages, typically appearing as sheaf-like or blade clusters\u003c\/p\u003e\n\u003cp\u003eThe layering seen here reflects multiple stages of mineral deposition, making it a great example of sequential crystal growth in volcanic environments.\u003c\/p\u003e\n\u003cp\u003eWhy This Piece Stands Out\u003c\/p\u003e\n\u003cp\u003eStrong contrast: dark chalcedony vs glass-clear apophyllite\u003c\/p\u003e\n\u003cp\u003ePresence of peach stilbite adds rarity and collector appeal\u003c\/p\u003e\n\u003cp\u003eLarge, well-terminated apophyllite crystals with high reflectivity\u003c\/p\u003e\n\u003cp\u003eSculptural, display-ready formation\u003c\/p\u003e\n\u003cp\u003eMulti-mineral composition (more desirable than single-mineral pieces)\u003c\/p\u003e\n\u003cp\u003eCare \u0026amp; Handling\u003c\/p\u003e\n\u003cp\u003eHandle with care — apophyllite and stilbite are relatively delicate\u003c\/p\u003e\n\u003cp\u003eAvoid water exposure (stilbite can be sensitive)\u003c\/p\u003e\n\u003cp\u003eClean with a soft dry brush or air blower\u003c\/p\u003e\n\u003cp\u003eStore away from harder minerals to prevent scratching\u003c\/p\u003e","brand":"Crystal Ballerz","offers":[{"title":"Default Title","offer_id":53803434672469,"sku":null,"price":85.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1039\/9295\/1125\/files\/rn-image_picker_lib_temp_0fe43f97-a94c-4979-aaa0-c286e014fc20.jpg?v=1777639666","url":"https:\/\/crystalballerz.co.uk\/products\/aaa-diamond-apophyllite-on-blue-chalcedony-with-peach-stilbite","provider":"Crystal Ballerz","version":"1.0","type":"link"}