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Shigaite

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SKY221948

Shigaite

Description Tabs

Description
Locality: 
Iron Monarch Open Cut, Iron Knob, Middleback Range, Eyre Peninsula, South Australia, Australia
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
1.3 × 0.6 × 0.6 cm
Description

Perfect gemmy orange hexagonal crystals of shigaite from this classic locality in Australia. Shigaite is a very rare mineral known from only six localities worldwide. Only found in two levels of the mine, RL130 and RL120 (from the book Minerals of Iron Monarch by Glyn Francis, p.146)

Mineral Data
What's on the rock

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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