File:Zhanghengite.jpg

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Description
English: :The rare intermetallide Zhanghengite, CuZn, discovered in meteorites, become available now from an old Vietnamese collection. The mineral has nice light-yellow gold-like color and is well visible by unequipped eye.
Zhanghengite is accompanied by mixture (alteration rim) of pink zincian (4.3-7.8 mas.% of Zn) native Copper, Cuprite, Hydrozincite, Smithsonite, Malachite and Cerussite. All this located mainly at the back side of the specimen.
The specimen size is 1.25x0.62x0.50 mm. Chemical formula of Zhanghengite from exactly this specimen is Cu1.00(Zn0.97Fe0.03)1.00.
A geological probe from unspecified "gold" deposit from Northern Vietnam was collected in the late 70th. But all gold-like metal turned out copper-zink alloy and no real gold was detected in the probe. The mineral indeed has very nice gold-like color and is very similar to native gold of AV700 fineness.
Completely analyzed specimen.
Date
Source Own work
Author David Hospital

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1 July 2019

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current14:56, 2 July 2019Thumbnail for version as of 14:56, 2 July 20191,250 × 912 (526 KB)David HospitalUser created page with UploadWizard
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