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Ferroberaunite from
Phosphate occurrence, Fumade, Fontrieu, Castres, Tarn, Occitanie, France


04216650017272736298330.jpg
Ferroberaunite, etc.

Phosphate occurrence, Fumade, Fontrieu, Castres, Tarn, Occitanie, France
07330960017272048084283.jpg
Ferroberaunite

Phosphate occurrence, Fumade, Fontrieu, Castres, Tarn, Occitanie, France
03927870017272048111730.jpg
Ferroberaunite

Phosphate occurrence, Fumade, Fontrieu, Castres, Tarn, Occitanie, France
04216650017272736298330.jpg
Ferroberaunite, etc.

Phosphate occurrence, Fumade, Fontrieu, Castres, Tarn, Occitanie, France
09549830017272349002086.jpg
Ferroberaunite

Phosphate occurrence, Fumade, Fontrieu, Castres, Tarn, Occitanie, France
01758720017272349023990.jpg
Ferroberaunite

Phosphate occurrence, Fumade, Fontrieu, Castres, Tarn, Occitanie, France
04216650017272736298330.jpg
Ferroberaunite, etc.

Phosphate occurrence, Fumade, Fontrieu, Castres, Tarn, Occitanie, France
07330960017272048084283.jpg
Ferroberaunite

Phosphate occurrence, Fumade, Fontrieu, Castres, Tarn, Occitanie, France
03927870017272048111730.jpg
Ferroberaunite

Phosphate occurrence, Fumade, Fontrieu, Castres, Tarn, Occitanie, France
Locality type:Occurrence
Classification
Species:Ferroberaunite
Formula:Fe2+Fe53+(PO4)4(OH)5 · 6H2O
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Beraunite4
Data
Mineral Data:Click here to view Ferroberaunite data
Locality Data:Click here to view Phosphate occurrence, Fumade, Fontrieu, Castres, Tarn, Occitanie, France
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:1470473
Long-form Identifier:1:3:1470473:2
GUID (UUID V4):0
References
Beraunite was originally defined as a fully oxidised mineral, but was redefined by Fanfani and Zanazzi (1967), on the basis of a crystal structural analysis, as a mixed-valence iron phosphate and they left the original fully oxidized end-member unnamed. In essence, Fanfani and Zanazzi (1967) had discovered a new mineral species (ferroberaunite) but re-used a previous name. In the 19th century, both beraunite and eleonorite had been applied to the fully oxidized mineral. Eleonorite had been re-applied by the IMA to the oxidized end-member of the beraunite-eleonorite series. In the IMA 21-D redefinition the name beraunite was reapplied to the oxidised phase and the name ferroberaunite was created for the mixed-valence phase (Tvrdy et al., 2021).
 
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