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Vladimirite & Talmessite

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SER208865

Vladimirite & Talmessite

Description Tabs

Description
Locality: 
Aït Ahmane, Zagora Province, Drâa-Tafilalet Region, Morocco
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 2 × 2.7 cm
Description

A small specimen featuring several tufts of colourless vladimirite and light green balls of talmessite on quartz

Mineral Data
What's on the rock

Vladimirite

Formula: 
Ca4(AsO4)2(AsO3OH)·4H2O
Strunz: 
8.CJ.25
Crystal System: 
Monoclinic
Hardness: 
3.5
Streak: 
White
Type Locality: 
Khovu-Aksy Ni-Co deposit, Tuva Republic, Eastern-Siberian Region, Russia

Talmessite

Formula: 
Ca2Mg(AsO4)2·2H2O
Strunz: 
8.CG.05
Crystal System: 
Triclinic
Hardness: 
5.0
Type Locality: 
Talmessi Mine (Talmesi Mine; Telmessi Mine; Telmesi Mine), Anarak District, Nain County (Nayin County), Esfahan Province (Isfahan Province; Aspadana Province), Iran