| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from China > Bournonite (cyclic twinned crystals) |
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| DESCRIPTION: | No. 81543 |
| Mineral: | Bournonite (cyclic twinned crystals) |
| Locality: | Yaogangxian Mine, 32 km southeast of Chenzhou, Hunan, China |
| Description: | Parallel complexly twinned lustrous silver-metallic bournonite crystals fully crystallized on all faces with no attachment point. The bournonite crystals have parallel crystal faces on all sides and have complex terminations with shallow pyramidal faces. Bournonite, PbCuSbS3, is an uncommon lead-copper sulfosalt mineral. Weight: 19.3 grams. Reference: Mineralogical Record v.42#6, Rocks and Minerals v.80#1 |
| Overall Size: | 33x18x16 mm |
| Crystals: | 8-16 mm |
| Archived: | For reference only |
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