Precious Opal
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Precious opal (polished), 3.2 cm, from Spencer, Idaho. Photo by Jeff Scovil.
Product details
Species
SizeMiniature
Dimensions3.2 cm
Added on02/13/2026
Publications
- Mineralogical Record Mineral Collections In American Northeast page 133
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Mineral guide
Learn about Opal
amorphous silica with water and a spectacular play-of-color; black, boulder, and fire opal varieties capture brightness, color, and collecting appeal.Regional guide
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