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Dolomite & Romanèchite

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PJM80938

Dolomite & Romanèchite

Ex J & S Mommers Collection

Description Tabs

Description
Locality: 
Iron Baron Mine, Middleback Range, Eyre Peninsula, South Australia, Australia
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 1.7 × 1.2 cm
Description

A rich reddish brown rhomb of dolomite with some minor romanechite crystal groups attached from the Opencut at lesser known Iron Baron Opencut near Iron Knob

Collected Easter 1983

Mineral Data
What's on the rock

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White

Romanèchite

Formula: 
(Ba,H2O)2Mn5O10
Strunz: 
4.DK.10
Hardness: 
5.0 - 6.0
Type Locality: 
Manganese deposit, Romanèche-Thorens, La Chapelle-de-Guinchay, Saône-et-Loire, Burgundy, France
Earthstones Australia

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