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Seamanite

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SKY917894

Seamanite

Type Locality

Description Tabs

Description
Locality: 
Chicagon Mine, Iron County, Michigan, United States of America
Class: 
Crystals on Matrix
Size Range: 
Micromount (under 1cm)
Size: 
0.4 × 0.3 × 0.3 cm
Description

Outstanding pale brown perfect prismatic crystals of the very rare mineral seamanite in an small matrix.. Very difficult to get this mineral in matrix.

Only 4 localities known workdwide.

Ex Vandenbroucke Museum collection from Waregem, Belgium.

No duplicates available

Mineral Data
What's on the rock

Seamanite

Formula: 
Mn2+3[B(OH)4](PO4)(OH)2
Strunz: 
6.AC.65
Crystal System: 
Orthorhombic Small acicular crystals.
Hardness: 
4.0
Streak: 
White
Type Locality: 
Chicagon mine, Menominee iron range, Iron Co., Michigan, USA

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