Calcite
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Calcite “butterfly” twin, 2.5 cm, from Egremont, West Cumberland Iron Field, Copeland, Cumbria, England. Ex Carl Bosch (1874-1940) collection (1888), ex U.S. National Museum, ex Cal Graeber. Jeff Scovil photo.
Product details
Species
SizeThumbnail
Dimensions2.5 cm
Added on02/13/2026
Publications
- Mineralogical Record Refined Elegance page 150
Known provenance
| Date | Collector | Acquisition price |
|---|---|---|
| — | Cal Graeber | Not disclosed |
| — | U.S. National Museum | Not disclosed |
| — | Carl Bosch (1874-1940) | Not disclosed |
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