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Zincian Dolomite Dolomite On Coronadite

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PJM41075

Zincian Dolomite Dolomite On Coronadite

Description Tabs

Description
Locality: 
Kintore Open Cut, Broken Hill, New South Wales, Australia
Size Range: 
Cabinet (10-18 cm)
Size: 
2.7 × 12.8 × 5 cm
Description

Looking like a black castle from a fable, we have a group of coronadite stalactites from the Kintore Opencut studded with pale pink dolomite, variety zincian dolomite spheres. The contrast between the coronadite and dolomite is quite striking, forming an asthetically pleasing cabinet specimen

Mineral Data
What's on the rock

Zincian Dolomite

Variety Of: 

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Hardness: 
3.5 - 4.0
Formula: 
Ca(Mg,Zn)(CO3)2
Hardness: 
0.0

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White

Coronadite

Formula: 
Pb(Mn4+6Mn3+2)O16
Strunz: 
4.DK.05a
Hardness: 
4.5 - 5.0
Type Locality: 
Horse-Shoe shaft (Horseshoe Mine), Coronado Mine (Coronado Mining Co. property; Arizona Copper Co. group [in part]), Coronado vein, Copper Plate Gulch, Copper Mountain District (Clifton-Morenci District), Shannon Mts, Greenlee Co., Arizona, USA
Earthstones Australia

Seller Information

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