Zhanghengite

 Zhanghengite is a mineral consisting of 80% copper and zinc, 10% iron with the balance made up of chromium and aluminium. Its color is golden yellow. It was discovered in 1986 during the analysis of the Bo Xian meteorite and is named after Zhang Heng, an ancient Chinese astronomer.

Zhanghengite
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.
General
Category	Native element mineral
Formula (repeating unit)	CuZn
Strunz classification	1.AB.10a
Crystal system	Isometric
Crystal class	Hexoctahedral (m3m) H-M symbol: (4/m 3 2/m)
Space group	Im3m
Unit cell	a = 2.95 Å; Z = 1
Identification
Color	Golden yellow
Cleavage	None
Mohs scale hardness	3.5
Luster	Metallic
Streak	bronze
Diaphaneity	Opaque
Specific gravity	3.92
Ultraviolet fluorescence	Non-fluorescent
References

This article uses material from the Wikipedia article  Metasyntactic variable, which is released under the  Creative Commons Attribution-ShareAlike 3.0 Unported License.