| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Missouri > Sphalerite (contact twinned crystals) |
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| DESCRIPTION: | No. 81342 |
| Mineral: | Sphalerite (contact twinned crystals) |
| Locality: | Tri-State Lead-Zinc Mining District, near Joplin, Jasper County, Missouri |
| Description: | Lustrous black sphalerite crystals attached to a fragment of gray chert on the bottom. The sphalerite crystals have complexly striated surfaces and three crystals exhibit lamellar contact twinning, with change in striations highlighting the twin planes. Ex. Willard Elsing (1911-2004) |
| Overall Size: | 5.5x4x3 cm |
| Crystals: | 4-34 mm |
| Archived: | For reference only |
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