Hyalite Opal
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Hyalite opal, 5 cm, from San Luis Potosi, Mexico. Ex John Sinkankas collection and written about for “iris” optical effects in his 1976 book Gemstones of North America, vol. 2.
Product details
Species
SizeMiniature
Dimensions5.0 cm
Added on02/13/2026
Locality
Publications
- Mineralogical Record Mineral Collections In California page 216
Known provenance
| Date | Collector | Acquisition price |
|---|---|---|
| — | John Sinkankas | Not disclosed |
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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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