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Brucite & Hausmannite In Calcite

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PDM959790

Brucite & Hausmannite In Calcite

Classic Locality

Description Tabs

Description
Locality: 
Långban, Filipstad, Värmland County, Sweden
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.3 × 4.3 × 3.4 cm
Weight: 
96.00gr
Description

Rich specimen with rounded euhedral crystals of light brown brucite in a matrix of white calcite and black lustrous hausmannite. Under short UV illumination the calcite turns intense red.

Acquired in 1988. Ex Bob Janssens specimen #737 (it was labelled as caryinite).

Combine specimens to reduce shipping costs!.

Mineral Data
What's on the rock

Brucite

Formula: 
Mg(OH)2
Strunz: 
4.FE.05
Crystal System: 
Hexagonal
Hardness: 
2.5 - 3.0
Streak: 
White
Type Locality: 
Castle Point, Hoboken, Hudson Co., New Jersey, USA

Hausmannite

Formula: 
Mn2+Mn3+2O4
Strunz: 
4.BB.10
Hardness: 
5.5
Type Locality: 
Oehrenstock (Öhrenstock), Langewiesen, Ilmenau District, Thuringian Forest, Thuringia, Germany

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

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