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Roselite & β-Roselite

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NST652281

Roselite & β-Roselite

Description Tabs

Description
Locality: 
Bou Azzer Mine, Amerzgane, Ouarzazate Province, Drâa-Tafilalet Region, Morocco
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.2 × 4 × 4.1 cm
Description

Epitaxial growth of orange β-Roselite on pink Roselite. Superb older specimen from Bou Azzer.

Mineral Data
What's on the rock

Roselite

Formula: 
Ca2(Co2+,Mg)(AsO4)2·2H2O
Strunz: 
8.CG.10
Hardness: 
3.5
Type Locality: 
Rappold Mine, Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany

β-Roselite

Formula: 
Ca2(Co2+,Mg)(AsO4)2·2H2O
Crystal System: 
Triclinic
Hardness: 
3.5 - 4.0
Streak: 
Red, pale
Type Locality: 
Schneeberg District, Erzgebirge, Saxony, Germany