Rickardite

Rickardite is a telluride mineral, a copper telluride (Cu7Te5)[1] or Cu3-x (x = 0 to 0.36)Te2.[2] It was first described for an occurrence in the Good Hope Mine, Vulcan district, Gunnison County, Colorado, US,[3] and named for mining engineer Thomas Arthur Rickard (1864–1953).[1] It is a low temperature hydrothermal mineral that occurs associated with vulcanitenative telluriumcameronitepetzitesylvaniteberthieritepyritearsenopyrite and bornite.[2]

Rickardite
Rickardite-D10104b.jpg
Rickardite on tellurium
General
CategoryTelluride mineral
Formula
(repeating unit)
Cu7Te5
Strunz classification2.BA.30
Crystal systemOrthorhombic
Crystal classDipyramidal (mmm)
H-M symbol: (2/m 2/m 2/m)
Space groupPmmn
Identification
ColorRed-violet (fresh), darkens
Mohs scale hardness3 12
LusterMetallic
StreakRed
DiaphaneityOpaque

 


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 Metasyntactic variable, which is released under the 
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