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

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

DESCRIPTION:	No. 81541
Mineral:	Bournonite (cyclic twinned crystals) with Boulangerite micros
Locality:	Yaogangxian Mine, 32 km southeast of Chenzhou, Hunan, China
Description:	Doubly terminated lustrous silver-metallic bournonite crystals with acicular boulangerite microcrystals, repeatedly twinned on the {110} plane, with highly reflective parallel striated prism faces on all sides with pyramidal termination faces. Bournonite, PbCuSbS3, is an uncommon lead-copper sulfosalt mineral. Weight: 45.8 grams. Reference: Mineralogical Record v.42#6, Rocks and Minerals v.80#1
Overall Size:	36x30x18 mm
Crystals:	8-18 mm
Archived:	For reference only

The minerals illustrated on this site are presented for reference purposes only. The owner of this site did not collect the minerals and collectors should not assume access is permitted to the property based on inclusion in this museum. Please contact the property owner to obtain legal permission before entering private property. ;