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Romanèchite & Goethite

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GMN800478

Romanèchite & Goethite

Description Tabs

Description
Locality: 
Veszprém, Veszprém County, Veszprém County, Hungary
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3 × 2.6 cm
Description

Coral shape dendritic black romanéchite in great contrast with yellow iron-oxide/hydroxide minerals (not yet analized). New find from Hungary.

Very aesthetic piece from a limited lot.

Mineral Data
What's on the rock

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

Goethite

Formula: 
α-Fe3+O(OH)
Strunz: 
4.00.
Crystal System: 
Orthorhombic
Hardness: 
5.0 - 5.5
Type Locality: 
Hollertszug Mine (Hollerter Zug Mine), Dermbach, Herdorf, Siegerland, Rhineland-Palatinate, Germany

Seller Information

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