Quartz (Var: Chalcedony)
Unknown Owner
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When does a sea creature's home qualify as a rock? When it has been fossilized, or pseudomorphed by agate! You can see on the ends of this long branch of what used to be coral that it has been completely replaced inside by concentric rings of dense, hard agate; both ends have been polished to emphasize this.
Product details
Known provenance
| Date | Collector | Acquisition price |
|---|---|---|
| 08/2024 | Unknown Owner | Not disclosed |
| — | The Arkenstone | Not disclosed |
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Mineral guide
Learn about Chalcedony
microcrystalline quartz with agate, jasper, chrysoprase; waxy to glassy surfaces, banding and botryoidal forms, a colorful, collectible spectrum.Regional guide
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