{"product_id":"rough-opal-in-matrix-ethiopia","title":"Rough Precious Opal with Blue-Green Flash — Ethiopia","description":"\u003ch4\u003eAbout This Specimen\u003c\/h4\u003e\u003cp\u003eThis Ethiopian rough precious opal presents translucent, milky white opal along one display face, with predominantly blue and green play-of-color and smaller violet accents. Its luminous opal areas contrast sharply with the textured tan-brown host material, preserving the character of the rough formation.\u003c\/p\u003e\u003ch4\u003eSpecimen Details\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMineral \/ Specimen Type:\u003c\/strong\u003e Rough precious opal mineral specimen\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocality:\u003c\/strong\u003e Ethiopia\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm \u0026amp; Structure:\u003c\/strong\u003e Massive, irregular rough specimen with visible host material\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Milky white to pale blue-gray opal with blue and green play-of-color, localized violet accents, and tan-brown host material\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRarity:\u003c\/strong\u003e Uncommon — opal displaying play-of-color is less common than ordinary opal, although Ethiopian precious opal is established in the collector market\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMohs Hardness:\u003c\/strong\u003e 5.5–6.5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLuster:\u003c\/strong\u003e Vitreous to waxy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical Formula:\u003c\/strong\u003e SiO₂·nH₂O\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecimen Size:\u003c\/strong\u003e Toenail\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 2.4 × 2.1 × 3.7 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecimen Weight:\u003c\/strong\u003e 14.8 g (mineral only)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal \/ Display Weight:\u003c\/strong\u003e 148 g (supplied shipping\/display weight)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eAbout Opal\u003c\/h4\u003e\u003cp\u003eOpal is an amorphous, hydrated form of silica rather than a mineral with an ordered crystal structure. In precious opal, microscopic silica spheres can interact with light to produce shifting spectral colors known as play-of-color; opal typically has a Mohs hardness of 5.5–6.5 and the formula SiO₂·nH₂O.\u003c\/p\u003e\u003ch4\u003eTraditional \u0026amp; Metaphysical Associations\u003c\/h4\u003e\u003cp\u003eIn crystal and spiritual traditions, opal is associated with creativity, inspiration, emotional expression, and an appreciation of change. Its shifting colors also make it a popular focus for meditation, intention-setting, and contemplative display. \u003cem\u003eMetaphysical properties are based on traditional beliefs and are provided for cultural and informational purposes; they are not scientifically established or intended as medical advice.\u003c\/em\u003e\u003c\/p\u003e\u003ch4\u003eWhy This Specimen?\u003c\/h4\u003e\u003cp\u003eThe upright display orientation highlights a bright opal-rich face with blue-green flashes and scattered violet points, while the surrounding earthy host material gives the piece strong natural contrast. Multiple viewing angles reveal both its colorful interior and rugged rough exterior.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eExact specimen pictured.\u003c\/strong\u003e You will receive the exact specimen shown in the photographs.\u003c\/p\u003e","brand":"Mineral Treasury","offers":[{"title":"Default Title","offer_id":53289609429359,"sku":"MT-0002","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/7563\/6335\/files\/ethiopian-rough-opal-front.jpg?v=1787782127","url":"https:\/\/mineraltreasury.com\/products\/rough-opal-in-matrix-ethiopia","provider":"Mineral Treasury","version":"1.0","type":"link"}