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Pyrosmalite-(Mn)

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DVE111395

Pyrosmalite-(Mn)

Ex-David J. Eicher Collection
Rare Mineral

Description Tabs

Description
Locality: 
Broken Hill, New South Wales, Australia
Size Range: 
Thumbnail (1-3cm)
Size: 
2.9 × 2.1 × 1.2 cm
Description

Outstanding thumbnail specimen of this rare iron silicate hydroxide from a celebrated Australian locality. Well-formed crystals interlace through a manganese-rich matrix.

Mineral Data
What's on the rock

Pyrosmalite-(Mn)

Formula: 
(Mn,Fe)8Si6O15(OH,Cl)10
Strunz: 
9.EE.10
Hardness: 
4.5
Type Locality: 
Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
David J. Eicher

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