{"product_id":"moonstone-flame","title":"Moonstone Flame — Blue Adularescence Feldspar","description":"\u003cp\u003eMoonstone Flame — Blue Adularescence Feldspar (9cm)\u003c\/p\u003e\n\u003cp\u003eA polished moonstone flame displaying vivid blue adularescence, caused by light interacting with internal feldspar layers. The flash moves across the surface as the angle changes, creating a shifting electric-blue sheen.\u003c\/p\u003e\n\u003cp\u003eThis piece shows clear lamellar structure, visible as fine internal layering — the key feature responsible for the optical effect.\u003c\/p\u003e\n\u003cp\u003eThe flame cut enhances the movement of light, making this a strong display piece from multiple angles.\u003c\/p\u003e\n\u003cp\u003eKey Features\u003c\/p\u003e\n\u003cp\u003e• Mineral Type: Feldspar (Orthoclase–Albite intergrowth)\u003c\/p\u003e\n\u003cp\u003e• Chemical Formula: KAlSi₃O₈ – NaAlSi₃O₈\u003c\/p\u003e\n\u003cp\u003e• Formation: Slow cooling → separation into layered feldspar phases\u003c\/p\u003e\n\u003cp\u003e• Colour: Grey, cream, brown with blue optical flash\u003c\/p\u003e\n\u003cp\u003e• Transparency: Translucent to semi-opaque\u003c\/p\u003e\n\u003cp\u003e• Lustre: Vitreous to pearly\u003c\/p\u003e\n\u003cp\u003eFeature Highlights\u003c\/p\u003e\n\u003cp\u003e• Noticeable blue adularescence across main face\u003c\/p\u003e\n\u003cp\u003e• Visible internal layering (lamellar structure)\u003c\/p\u003e\n\u003cp\u003e• Flame shape enhances light movement and display\u003c\/p\u003e\n\u003cp\u003e• Natural internal fractures and textures throughout\u003c\/p\u003e\n\u003cp\u003e• High-polish finish\u003c\/p\u003e\n\u003cp\u003e• Untreated — optical effect, not artificial colour\u003c\/p\u003e\n\u003cp\u003eDimensions\u003c\/p\u003e\n\u003cp\u003e• Weight: 150 grams\u003c\/p\u003e\n\u003cp\u003e• Size: 9 cm x 5.5 cm\u003c\/p\u003e\n\u003cp\u003eGeological \u0026amp; Scientific Notes\u003c\/p\u003e\n\u003cp\u003eMoonstone forms from an intergrowth of orthoclase and albite feldspar.\u003c\/p\u003e\n\u003cp\u003eDuring cooling, these minerals separate into extremely thin layers. When light enters the stone, it scatters between these layers, producing the glow known as adularescence.\u003c\/p\u003e\n\u003cp\u003eThe blue flash is caused by light interference, not pigment.\u003c\/p\u003e\n\u003cp\u003eThe intensity depends on: • Layer thickness\u003c\/p\u003e\n\u003cp\u003e• Cut orientation\u003c\/p\u003e\n\u003cp\u003e• Viewing angle\u003c\/p\u003e\n\u003cp\u003eCondition\u003c\/p\u003e\n\u003cp\u003e• Excellent polish\u003c\/p\u003e\n\u003cp\u003e• Natural internal fractures (typical of feldspar)\u003c\/p\u003e\n\u003cp\u003e• No structural damage\u003c\/p\u003e","brand":"Crystal Ballerz","offers":[{"title":"Default Title","offer_id":53820313665877,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1039\/9295\/1125\/files\/rn-image_picker_lib_temp_24f6e210-ec97-4cd8-81c4-4137ccef71c1.jpg?v=1777899532","url":"https:\/\/crystalballerz.co.uk\/products\/moonstone-flame","provider":"Crystal Ballerz","version":"1.0","type":"link"}