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Defernite

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SMM602544

Defernite

Rare Mineral

Description Tabs

Description
Locality: 
Kombat Mine, Grootfontein, Otjozondjupa Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.5 × 1 cm
Description

The defernite is not a rare mineral but this is the first time I can see a well-formed, fire-red, crystal of this mineral. I searched in the e-Rocks database and Mindat database but I did not find anything like that. I do not think it's unique but I think it's very uncommon.

Boxed with Label
Mineral Data
What's on the rock

Defernite

Formula: 
Ca6(CO3)2-x(SiO4)x(OH)7(Cl,OH)1-2x (x<0.5)
Strunz: 
5.BA.25
Crystal System: 
Orthorhombic
Hardness: 
3.0
Type Locality: 
Güneyce-Ikizdere, Rize Province, Black Sea Region, Turkey

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