{"product_id":"opal-in-petrified-wood-virgin-valley-nevada","title":"Opal in Petrified Wood – Black \u0026 White, Virgin Valley","description":"\u003ch4\u003eAbout This Specimen\u003c\/h4\u003e\u003cp\u003eThis Virgin Valley specimen preserves a slender fragment of petrified wood containing contrasting black and white common opal. Glossy black opal occupies prominent recessed areas, while white opal appears along several edges and seams against the brown, fibrous-looking wood texture; no play of color is present.\u003c\/p\u003e\u003ch4\u003eSpecimen Details\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMineral \/ Specimen Type:\u003c\/strong\u003e Opal in Petrified Wood\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocality:\u003c\/strong\u003e Virgin Valley, Nevada, USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm \u0026amp; Structure:\u003c\/strong\u003e Elongated opalized wood fragment with preserved longitudinal, wood-like texture and exposed opal-filled areas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black and white opal with brown, tan, and dark gray-brown petrified wood\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRarity:\u003c\/strong\u003e Uncommon as a locality-specific opalized wood specimen; the non-play-of-color opal itself is not considered rare\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 on exposed opal; duller on wood-textured surfaces\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 Miniature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 1.8 × 1.4 × 4.4 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecimen Weight:\u003c\/strong\u003e 9.8 g — mineral only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal \/ Display Weight:\u003c\/strong\u003e 57.5 g\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eAbout Opal in Petrified Wood\u003c\/h4\u003e\u003cp\u003eOpal is a hydrated form of silica with the formula SiO₂·nH₂O and a Mohs hardness of approximately 5.5–6.5. In opalized wood, silica-bearing material replaces or fills portions of the original wood structure, sometimes retaining recognizable grain-like textures; this example contains black and white common opal without play of color.\u003c\/p\u003e\u003ch4\u003eTraditional \u0026amp; Metaphysical Associations\u003c\/h4\u003e\u003cp\u003eIn crystal traditions, opal is often associated with imagination, reflection, and personal expression, while petrified wood symbolizes patience, stability, and connection with the natural world. Some collectors use the combination as a meditation object or as a visual reminder of transformation over time. \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 form clearly displays the contrast between glossy black opal, smaller white opal areas, and the warm brown longitudinal texture of the petrified wood. Its compact mounted presentation makes the specimen easy to appreciate from several angles.\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":53289639346543,"sku":"MT-0003","price":28.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/7563\/6335\/files\/virgin-valley-opalized-wood-front.jpg?v=1787782341","url":"https:\/\/mineraltreasury.com\/products\/opal-in-petrified-wood-virgin-valley-nevada","provider":"Mineral Treasury","version":"1.0","type":"link"}