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Itabirite

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CLB542225

Itabirite

Description Tabs

Description
Locality: 
Itabira, Minas Gerais, Brazil
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 5 × 1.7 cm
Description

Itabirite is a sedimentary, prekambrien banded iron formation consisting of iron-ores like hematite, magnetite and/or martite and quartz/chert. this is a very nice sample, very glossy and shiny, with ripple marks.

Mineral Data
What's on the rock

Itabirite

Mixture Of: 

Martite

Hardness: 
0.0

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0

Hematite

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

Magnetite

Formula: 
Fe2+Fe3+2O4
Strunz: 
4.BB.05
Hardness: 
5.5 - 6.5

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