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Pumpellyite-(Mn2+)

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CHA519084

Pumpellyite-(Mn2+)

Rare Mineral

Description Tabs

Description
Locality: 
Cassagna Mine, Genova Province, Liguria, Italy
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2.3 × 2 × 1.5 cm
Description

specimen with many good radiating aggregates of brown needles in matrix of the rare pumpellyite-(Mn2+)

Mineral Data
What's on the rock

Pumpellyite-(Mn2+)

Formula: 
Ca2(Mn2+,Mg)(Al,Mn3+,Fe3+)2(Si2O7)(SiO4)(OH)2·H2O
Strunz: 
9.BG.20
Crystal System: 
Monoclinic
Hardness: 
0.0
Type Locality: 
Ochiai mine, Kohsai, Minami-Alps City, Yamanashi Prefecture, Chubu Region, Honshu Island, Japan

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