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Dyscrasite Actinolite & Allargentum

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SCH79612

Dyscrasite Actinolite & Allargentum

Description Tabs

Description
Locality: 
Bouismas Mine, Zagora Province, Drâa-Tafilalet Region, Morocco
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.2 × 2.6 cm
Description

 Arborescent dyscrasite growths on an etched calcite matrix with actinolite.

Mineral Data
What's on the rock

Dyscrasite

Formula: 
Ag3Sb
Strunz: 
2.AA.35
Crystal System: 
Orthorhombic
Hardness: 
3.5 - 4.0
Type Locality: 
Wenzel Mine, Frohnbach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany

Actinolite

Formula: 
☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Strunz: 
9.DE.10
Crystal System: 
Monoclinic - Prismatic
Hardness: 
5.0 - 6.0
Streak: 
White

Allargentum

Formula: 
(Ag1-xSbx)
Strunz: 
2.AA.30
Crystal System: 
Hexagonal
Hardness: 
3.5
Colour: 
Silver
Type Locality: 
University Mine (Giroux Lake Mine), Coleman Township, Cobalt area, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada
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