Front view of milky white opal exposed through a polished face in a rough tan-brown nodule

Rough Opal with Polished Face – Virgin Valley, Nevada

$25.00
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Front view of milky white opal exposed through a polished face in a rough tan-brown nodule

Rough Opal with Polished Face – Virgin Valley, Nevada

$25.00

About This Specimen

This rough opal specimen from Virgin Valley, Nevada, has a broad polished top that reveals milky white opal within a contrasting tan-brown natural exterior. Subtle pale blue-gray margins add definition to the exposed opal, while fine hairline fractures remain visible across the polished surface.

Specimen Details

  • Mineral / Specimen Type: Rough opal mineral specimen with a polished face
  • Locality: Virgin Valley, Nevada, USA
  • Form & Structure: Massive to nodular rough material with a polished top surface
  • Color: Milky white opal with faint pale blue-gray margins in a tan-brown rough exterior; no distinct play-of-color is evident in the photographs
  • Rarity: Common to uncommon; opal is widespread, while attributed Virgin Valley material offers added locality interest
  • Mohs Hardness: 5.5–6.5
  • Luster: Waxy to vitreous on the polished face; dull to earthy on the rough exterior
  • Chemical Formula: SiO₂·nH₂O
  • Specimen Size: Toenail
  • Dimensions: 3.8 × 2.3 × 3.5 cm
  • Specimen Weight: 29 g — mineral only
  • Total / Display Weight: 28.9 g, seller-reported; verification recommended
  • Display Preparation: Mounted in a 2 × 2 × 2 inch display box

About Opal

Opal is an amorphous, hydrated form of silica rather than a mineral with an ordered crystal structure. Its composition is written as SiO₂·nH₂O, and its Mohs hardness typically ranges from 5.5 to 6.5. Opal may be transparent through opaque and can occur with or without play-of-color; this specimen presents a milky, non-play-of-color appearance in the supplied photographs.

Traditional & Metaphysical Associations

In crystal and spiritual traditions, opal is often associated with creativity, inspiration, emotional expression, and intention-setting. Some collectors use it as a symbolic focus for meditation or simply appreciate its soft color and organic appearance as a contemplative display piece. Metaphysical properties are based on traditional beliefs and are provided for cultural and informational purposes; they are not scientifically established or intended as medical advice.

Why This Specimen?

The polished white exposure creates a strong visual contrast with the rugged tan-brown exterior while preserving the character of the original rough material. Its upright presentation and protective display box make it an accessible locality specimen for a shelf or compact mineral cabinet.

Exact specimen pictured. You will receive the exact specimen shown in the photographs.

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