| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Pennsylvania > Calcite (twinned crystals) |
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| DESCRIPTION: | No. 82033 |
| Mineral: | Calcite (twinned crystals) |
| Locality: | Delta Carbonate Quarry, York, York County, Pennsylvania |
| Description: | Translucent calcite crystals colored yellow-brown by limonite coating on a plate of smaller calcite crystals. The calcite crystals are tabular hexagonal form, dominated by shallow rhombohedral termination faces, contact-twinned on the C-axis {001} plane. Ex. Miller collection T2694; ex. Betts #64672; ex. Mort Metersky collection |
| Overall Size: | 28x24x21 mm |
| Crystals: | 1-25 mm |
| Archived: | For reference only |
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