| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from China > Bournonite (twinned crystals) |
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| DESCRIPTION: | No. 75516 |
| Mineral: | Bournonite (twinned crystals) |
| Locality: | Yaogangxian Mine, Nanling Mountains, Hunan, China |
| Description: | Lustrous gray-metallic bournonite crystals, repeatedly twinned on the {110} plane, with highly reflective parallel crystal faces on all sides. The bournonite crystals have overgrowth of small microcrystals, probably second generation bournonite crystals. For locality information see: Mineralogical Record v.42#6, Rocks and Minerals v.80#1 |
| Overall Size: | 28x23x14 mm |
| Crystals: | micro to 28 mm |
| Archived: | For reference only |
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