{"product_id":"rough-opal-with-polished-top-virgin-valley-nevada","title":"Rough Opal with Polished Face – Virgin Valley, Nevada","description":"\u003ch4\u003eAbout This Specimen\u003c\/h4\u003e\u003cp\u003eThis Virgin Valley opal specimen presents pale blue-white opal in irregular seams and patches through a textured tan-brown host. Its polished top reveals a smooth, softly lustrous opal area while the rough sides preserve the piece's natural character.\u003c\/p\u003e\u003ch4\u003eSpecimen Details\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMineral \/ Specimen Type:\u003c\/strong\u003e Rough opal mineral specimen with a polished top\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocality:\u003c\/strong\u003e Virgin Valley, Nevada, United States\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm \u0026amp; Structure:\u003c\/strong\u003e Massive, seam-like opal within earthy host material; polished upper surface and rough natural sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Pale blue-white to milky opal against cream, tan, and brown host material\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRarity:\u003c\/strong\u003e Uncommon as a locality specimen; opal itself is widespread, and no distinct play-of-color is visible in the photographs\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 Waxy to vitreous on the polished opal; dull to earthy on the rough exterior\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 2.6 × 1.8 × 2.3 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecimen Weight:\u003c\/strong\u003e 8.6 g — mineral specimen only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal \/ Display Weight:\u003c\/strong\u003e 55.4 g\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eAbout Opal\u003c\/h4\u003e\u003cp\u003eOpal is an amorphous, hydrated form of silica and is therefore classified as a mineraloid rather than a crystalline mineral. It typically has a Mohs hardness of 5.5–6.5 and the formula SiO₂·nH₂O; varieties range from common opal with soft body color to precious opal exhibiting play-of-color.\u003c\/p\u003e\u003ch4\u003eTraditional \u0026amp; Metaphysical Associations\u003c\/h4\u003e\u003cp\u003eIn crystal and spiritual traditions, opal is associated with imagination, self-expression, reflection, and creative intention. This compact specimen may be appreciated as a symbolic meditation object or as a natural display piece. \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 contrast between the pale opal seams and weathered tan-brown exterior gives this small piece strong texture and locality interest. Its polished top provides a clear viewing window into the opal while retaining the rugged appearance of the original material.\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":53366742483311,"sku":"MT-0036","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/7563\/6335\/files\/virgin-valley-rough-opal-front_cf5b314f-5849-4a49-8920-df24ad75d717.jpg?v=1787790572","url":"https:\/\/mineraltreasury.com\/products\/rough-opal-with-polished-top-virgin-valley-nevada","provider":"Mineral Treasury","version":"1.0","type":"link"}