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Ferrihydrite

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RSL569566

Ferrihydrite

Rare Mineral

Description Tabs

Description
Locality: 
Luther Smelter Slag Locality, Leimbach, Mansfeld Basin, Saxony - Anhalt, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 1.9 × 1.8 cm
Description

A rare2 species from a not well known German slag locality... Several yellow-brown, hexagonal, thin-platy crystals of ferrihydrite on a slag matrix. It is a low crystalline metastable nanomineral, precursor of other minerals like hematite, built up of about 20% (FeO4) and 80% (FeO6) polyhedra. [mindat-online] 

Mineral Data
What's on the rock

Ferrihydrite

Formula: 
Fe3+10O14(OH)2
Strunz: 
4.FE.35
Hardness: 
0.0
Type Locality: 
Belousovskii Mine, Altai Mts (Rudnyi Altai), Eastern Kazakhstan Province (Shyghys Qazaqstan Oblysy; Vostochno-Kazakhstanskaya Oblast'), Kazakhstan...