Topaz, Hematite
Unknown Owner
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The extrusive gray rhyolite of the Thomas Range in Utah is the matrix for glassy and gemmy, cognac-colored topaz crystals, here to 1.0 cm in length. Also emplaced on the matrix are lustrous, metallic, black pseudomorphs, to 7 mm across. The replacement is of hematite, after garnet. Quite rare. Jack purchased this from retired dealer Mark Rogers in the 1980s. Ex. Jack Halpern Collection.
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Known provenance
| Date | Collector | Acquisition price |
|---|---|---|
| 08/2024 | Unknown Owner | Not disclosed |
| — | The Arkenstone | Not disclosed |
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Mineral guide
Learn about Topaz
hard, glassy orthorhombic crystals from pegmatites and rhyolites; colors range from colorless to pink; sharp terminations aid identification, localitie…Regional guide
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