| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Texas > Gypsum |
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| DESCRIPTION: | No. 52991 |
| Mineral: | Gypsum |
| Locality: | Texas |
| Description: | Curved crystals of satin spar, a variety of the mineral gypsum with fibrous structure that give a satin luster, on gray clay matrix. |
| Overall Size: | 10x6x4 cm |
| Crystals: | 5-15 mm |
| Archived: | For reference only |
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