| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from England > Chalcocite (twinned crystals) |
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| DESCRIPTION: | No. 65971 |
| Mineral: | Chalcocite (twinned crystals) |
| Locality: | Cornwall, England |
| Description: | Elongated sooty gray chalcocite crystals that are twinned on the {110} plane resulting in a fourling-twin when viewed down the long axis. Has remnants of white putty on the rear where it was mounted in a display box. Ex. Perham's (West Paris, Maine) ca. 1975 |
| Overall Size: | 11x3x3 mm |
| Crystals: | 11 mm |
| Archived: | For reference only |
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