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Rhodochrosite

#WR53944
SOLD
Rhodochrosite from Kuruman, Kalahari Mn fields, Northern Cape Province, South Africa - WR53944
Rhodochrosite from Kuruman, Kalahari Mn fields, Northern Cape Province, South Africa - WR53944

Rhodochrosite

#WR53944
Availability
Sold
Size
7 x 7.5 x 5.5 cm - Sm Cabinet 
Formula
MnCO3 (RRUFF)
Locality
Kuruman, Kalahari Mn fields, Northern Cape Province, South Africa
Tagged
carbonate

Deep glassy red scalenohedral crystals to 5mm on the face. Along the cross-sections of the specimen you can see the concentric growth patterns from a black Hausmannite matrix which develops into crystalline red Rhodochrosite and finally into an open space where the crystals form.

Rhodochrosite

Formula
MnCO3 
Crystal System
Trigonal 
Crystal Habit
Massive - Granular, Columnar, Botryoidal 
Cleavage
Perfect, Perfect, Perfect 
Luster
Vitreous (Glassy) 
Color
pinkish red, red, rose red, yellowish gray, brown 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Brittle - Conchoidal 
Hardness
3 

Data courtesy of Webmineral.

Collection
Willard L. Roberts Collection
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