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Hematite Psm Magnetite

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PDM741848

Hematite Psm Magnetite

Pseudomorph

Description Tabs

Description
Locality: 
Payun Volcano, Altiplano de Payun Matru, Mendoza, Argentina
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.2 × 1.7 cm
Description

Bright metallic hematite microcrystals that are pseudomorphs after a nice group of magnetite octahedra, the so-called “martite” pseudomorph.

Found in 2009. Ex. Dr. Bob Janssens collection, #2107.

Mineral Data
What's on the rock

Hematite

Formula: 
Fe2O3
Strunz: 
4.CB.05
Crystal System: 
Trigonal
Hardness: 
5.0 - 6.0

Magnetite

Formula: 
Fe2+Fe3+2O4
Strunz: 
4.BB.05
Crystal System: 
Isometric
Hardness: 
5.5 - 6.5
Streak: 
Black

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