| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Colorado > Thomsonite |
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| DESCRIPTION: | No. 44519 |
| Mineral: | Thomsonite |
| Locality: | Table Mountain, Golden, Jefferson County, Colorado |
| Description: | Acicular white thomsonite crystals in radiating hemispherical aggregates to 11 mm diameter lining a shallow cavity in basalt. The termination surfaces of the thomsonite crystals have a yellowish color, but the edges reveal white crystals throughout. Ex. Henry D. Miller (1838-1919 or 1920) collection, bequeathed to the Wadsworth Atheneum in 1909; ex. Loomis-Chaffee School |
| Overall Size: | 8x6x4 cm |
| Crystals: | 4-5 mm |
| Archived: | For reference only |
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