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Romanèchite

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RSL636623

Romanèchite

Rare Mineral

Description Tabs

Description
Locality: 
Haití Mine, Cabezo de San Ginés, San Ginés de la Jara, Cartagena, Murcia, Spain
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 4.4 × 3.4 cm
Description

These are the most fine quality romanèchite specimens ever found in Spain. These botryoidal aggregates show the velvet surface formed by several small todorokite/romanèchite crystals (see SEM photo). These specimens has not been acidified, only fresh water. Romanèchite shows in fresh fracture the classic grey color. You can observe small but brilliant crystals of pyrolusite on the surface. We have analized them, results will be send to the buyer.

Collected: 
2017
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