| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Illinois > Calcite (twinned crystals) |
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| DESCRIPTION: | No. 36825 |
| Mineral: | Calcite (twinned crystals) |
| Locality: | Denton Mine, Harris Creek District, Hardin County, Illinois |
| Description: | Two golden calcite crystals with rounded, complex crystal form. At first glance these appear to be parallel crystals, but an expert in crystallography identified the reentrant twin faces verifying the crystal twinning. |
| Overall Size: | 6.5x6x5 cm |
| Crystals: | 6 cm |
| Archived: | For reference only |
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