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Dolomite with Siderite

#PD31762
SOLD
DOLOMITE from Pribram, Bohemia, Czech Republic - PD31762
DOLOMITE from Pribram, Bohemia, Czech Republic - PD31762

Dolomite with Siderite

#PD31762
Availability
Sold
Size
6 x 6 x 4 cm - Sm Cabinet 
Formula
CaMg(CO3)2 (RRUFF)
Locality
Pribram, Bohemia, Czech Republic
Tagged
carbonate

This is more of an aesthetic, small cabinet specimen, but good for a well rounded Pribram collection. The crystals are large and discoidal and measure 2cm across. The entire specimen is covered by a frosting of clear clacites or even dolomite. If you look at the backside, you'll see dark cleavages of Siderite, an indication of how the geochemistry had changed.

Dolomite

Formula
CaMg(CO3)2 
Crystal System
Trigonal 
Crystal Habit
Crystalline - Coarse, Massive, Blocky - Rhombohedral 
Cleavage
Perfect, Perfect, Perfect 
Luster
Vitreous (Glassy) 
Color
white, gray, reddish white, brownish white, gray 
Streak
white 
Class
Trigonal - Rhombohedral 
Fracture
Brittle - Conchoidal 
Hardness
3.5-4 

Data courtesy of Webmineral.

Collection
Phillips Collection
Mineralpedia
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On Dakota Matrix
Other Available Dolomite
WebMineral
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