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Alleghanyite

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CR20994

Alleghanyite

Description Tabs

Description
Locality: 
Franklin Mine, Franklin, Sussex County, New Jersey, United States of America
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 6.5 × 3.5 cm
Description

Deep red brown grains of alleghanyite in matrix. Ex. Dr. Hartel collection, Germany

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