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Cummingtonite

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WND544926

Cummingtonite

Description Tabs

Description
Locality: 
I Mondei, Montescheno, Verbano-Cusio-Ossola Province, Piedmont, Italy
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.7 × 5 × 4 cm
Largest Crystal: 
5.00cm
Description

Crude, brown, lustrous radial cummingtonite crystals up to 5 cm tall embedded in matrix with some free terminations from Alpe I Mondei in Italy. 

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
Wendel Minerals

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