AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from China > Bournonite

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Bournonite from Yaogangxian Mine, Nanling Mountains, Hunan, China

 
Bournonite from Yaogangxian Mine, Nanling Mountains, Hunan, China

Bournonite from Yaogangxian Mine, Nanling Mountains, Hunan, China

Bournonite from Yaogangxian Mine, Nanling Mountains, Hunan, China

Bournonite from Yaogangxian Mine, Nanling Mountains, Hunan, China

DESCRIPTION:No. 69152
Mineral:Bournonite
Locality:Yaogangxian Mine, Nanling Mountains, Hunan, China
Description:Large lustrous gray-metallic bournonite crystals with striated prism faces caused by cyclic twinning on the {110} plane resulting in the form known as cogwheel habit. Note the complex crystallization patterns on the basal pinacoid termination faces. Ex. Georg Gebhard. For locality information see: Mineralogical Record v.42#6, Rocks and Minerals v.80#1
Overall Size:22x22x16 mm
Crystals:2-18 mm
Archived: For reference only

 

 

 

 

 

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