AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from China > Bournonite (twinned crystals) with Boulangerite micros

Bournonite (twinned crystals) with Boulangerite micros from Yaogangxian Mine, 32 km southeast of Chenzhou, Hunan, China

DESCRIPTION:	No. 81538
Mineral:	Bournonite (twinned crystals) with Boulangerite micros
Locality:	Yaogangxian Mine, 32 km southeast of Chenzhou, Hunan, China
Description:	Brilliantly lustrous silver-metallic bournonite crystals with complex asymmetric shape the result of twinning. The bournonite crystals are complete on all faces and have areas of late-growth dark metallic boulangerite(?) microcrystals on the surfaces. Bournonite, PbCuSbS3, is an uncommon lead-copper sulfosalt mineral. Weight: 55.4 grams. Reference: Mineralogical Record v.42#6, Rocks and Minerals v.80#1
Overall Size:	36x31x22 mm
Crystals:	micro-28 mm
Archived:	For reference only

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