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Mansfieldite

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TRN776240

Mansfieldite

Classic Locality

Description Tabs

Description
Locality: 
Penberthy Croft Mine, St Hilary, Cornwall, United Kingdom
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
3 × 2 × 5 cm
Largest Crystal: 
0.10cm
Description

Aggregates and crusts of spherulitic fibers of porcelian white Mansfieldite on sulfide-chlorite-quartz matrix

Mineral Data
What's on the rock

Mansfieldite

Formula: 
AlAsO4·2H2O
Strunz: 
8.CD.10
Hardness: 
3.5 - 4.0
Type Locality: 
Hobart Butte, Black Butte District, Lane Co., Oregon, USA

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