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Betpakdalite-CaMg & Sewardite & Lavendulan

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Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2 × 1 cm
Description

Greenish betpakdalite, red sewardite crystals and blue lavendulane on matrix (Desor/Mineralanalytik SEM-EDS MA1851)

Mineral Data
What's on the rock

Betpakdalite-CaMg

Formula: 
[Ca2(H2O)17Mg(H2O)6][Mo8As2Fe3+3O36(OH)]
Hardness: 
0.0
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia

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

Lavendulan

Formula: 
NaCaCu5(AsO4)4Cl·5H2O
Strunz: 
8.DG.05
Hardness: 
2.5
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

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$10
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Start 18 Dec 18:00
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