Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Cummingtonite

Views:
Watches:
SHS127913

Cummingtonite

Description Tabs

Description
Locality: 
Kopparberg, Ljusnarsberg, Örebro County, Sweden
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 1.7 × 1.3 cm
Description

Cummingtonite in matrix

Mineral Data
What's on the rock

Cummingtonite

Formula: 
☐{Mg2}{Mg5}(Si8O22)(OH)2
Strunz: 
9.DE.05
Crystal System: 
Monoclinic
Hardness: 
5.0 - 6.0
Streak: 
nd