| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from China > Bournonite (twinned crystals) |
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| DESCRIPTION: | No. 69114 |
| Mineral: | Bournonite (twinned crystals) |
| Locality: | Yaogangxian Mine, Nanling Mountains, Hunan, China |
| Description: | Brilliant gray-metallic bournonite compound-crystals repeatedly twinned resulting in the classic cogwheel-habit that resembles a gear with teeth. The bournonite crystals are doubly-terminated with lustrous faces throughout — must see in person. Ex. Georg Gebhard. For locality information see: Mineralogical Record v.42#6, Rocks and Minerals v.80#1 |
| Overall Size: | 3.2x2.5x2.4 cm |
| Crystals: | 20-25 mm |
| Archived: | For reference only |
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