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Romanèchite & Goethite

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KOV807424

Romanèchite & Goethite

New Discovery

Description Tabs

Description
Locality: 
Veszprém, Veszprém County, Veszprém County, Hungary
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2 × 1.5 cm
Weight: 
4.60gr
Description

NEW FOUND Romanèchite from the autumn of 2020! Interesting and unusual bonsai/coral shape fromation from the locality of Királyszentistván, Veszprém Co., Hungary. The dendritic black Romanéchite is in great contrast with yellow iron oxide/hydroxide minerals (not yet analized). So far, this contrastful combination of Romanèchite & iron oxides is  one of its most beautiful occurance worldwide.

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