About Ricardite

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• Mineralogy and geology*

Mineralogy and Geology of Ricardite

Mineral formula: Cu₇Te₅

Crystal system: orthorhombic

Crystal habit: Massive, very fine grained, somewhat porous; may be botryoidal.

Cleavage: none

Fracture: irregular / uneven

Color: red-violet

Luster: metallic

Diaphaneity: opaque

Moh’s scale hardness: 3 ½

Streak: red

Specific gravity: 7.54

Named after: Thomas Arthur Rickard (1864–1953), mining engineer and Editor of the Engineering and Mining Journal, New York and London.

Type locality: Good Hope Mine (Mammoth Good Hope Mine; Mammoth-Good Hope Mine; Mammoth Chimney Mine), Vulcan, Vulcan Mining District (Cebolla Mining District; Domingo Mining District), Gunnison County, Colorado, USA

Geological occurrence: related to deposits of native tellurium

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* Mineralogical information is from mindat.org