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Triploidite & Shigaite

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SMM751595

Triploidite & Shigaite

Description Tabs

Description
Locality: 
Iron Monarch Open Cut, Iron Knob, Middleback Range, Eyre Peninsula, South Australia, Australia
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1 × 1 cm
Description

A lot of crystals of triploidite are scattered on the matrix and also grouped in pale-orange emisphericals aggregates, there is a nice group of yellow tabular crystals of shigaite. 

Boxed with Label
Mineral Data
What's on the rock

Triploidite

Formula: 
(Mn2+,Fe2+)2(PO4)(OH)
Strunz: 
8.BB.15
Hardness: 
4.5 - 5.0
Type Locality: 
Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield Co., Connecticut, USA

Shigaite

Formula: 
Mn6Al3(OH)18[Na(H2O)6][SO4]2·6H2O
Strunz: 
7.DD.35
Hardness: 
0.0
Type Locality: 
Ioi mine, Ritto City, Shiga Prefecture, Kinki Region, Honshu Island, Japan

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