| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Oklahoma > Gypsum |
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| DESCRIPTION: | No. 77982 |
| Mineral: | Gypsum |
| Locality: | Great Salt Plains, near Jet, Alfalfa County, Oklahoma |
| Description: | X-shaped formation of prismatic selenite crystals, the colorless variety of the mineral species gypsum, with internal hour-glass-shaped zones of brown clay inclusions. A floater formation with no apparent point of attachment. Collected ca. 1980 |
| Overall Size: | 30x18x20 mm |
| Crystals: | 28-36 mm |
| Archived: | For reference only |
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