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Sewardite & Carminite

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CSL569191

Sewardite & Carminite

Rare Mineral

Description Tabs

Description
Locality: 
Sonora Copper Mine, Benjamin Hill, Benjamin Hill Municipality, Sonora, Mexico
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 2.5 × 2.2 cm
Description

Sewardite is a very rare Ca-Fe arsenate mineral, occurs as epitaxy on carminite. Confirmed material, SEM-EDS analysis shows many of these crystals are built up by inner carminite core with outer sewardite. Very rich piece

Mineral Data
What's on the rock

Sewardite

Formula: 
CaFe3+2(AsO4)2(OH)2
Strunz: 
8.BH.30
Hardness: 
0.0
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia

Carminite

Formula: 
PbFe3+2(AsO4)2(OH)2
Strunz: 
8.BH.30
Crystal System: 
Orthorhombic
Hardness: 
3.5
Type Locality: 
Louise Mine, Bürdenbach, Altenkirchen, Wied Iron Spar District, Westerwald, Rhineland-Palatinate, Germany
Loranth Minerals

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