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Alleghanyite & Manganosite

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SHS84136

Alleghanyite & Manganosite

Description Tabs

Description
Locality: 
Garpenberg Norra Mine, Garpenberg, Hedemora, Dalarna County, Sweden
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 5.2 × 1.7 cm
Description

Alleghanyite and manganosite in matrix

Mineral Data
What's on the rock

Alleghanyite

Formula: 
Mn2+5(SiO4)2(OH)2
Strunz: 
9.AF.45
Crystal System: 
Monoclinic
Hardness: 
5.5
Type Locality: 
Bald Knob, Sparta, Alleghany County, North Carolina, United States of America

Manganosite

Formula: 
MnO
Strunz: 
4.AB.25
Crystal System: 
Isometric
Hardness: 
5.5
Streak: 
Brown
Type Locality: 
Kaiser Franz Mine (König Wilhelm Mine), Schävenholz (Schebenholz; Schäbenholz), Elbingerode, Harz, Saxony-Anhalt, Germany