Dufrénite, Kidwellite, Beraunite, Cacoxenite

Specimen ID: FDD-23U

Dufrénite : Ca0.5Fe2+Fe3+5(PO4)4(OH)6·2H2O
Kidwellite : NaFe3+9+x(PO4)6(OH)11·3H2O, x = 0.33
Beraunite : Fe2+Fe3+5(PO4)4(OH)5·6H2O
Cacoxenite : Fe3+24AlO6(PO4)17(OH)12·75H2O
As recorded:
Coon Creek Mine, Shady, Polk Co., Arkansas, USA
Mindat locality:
9.1cm x 6.6cm

Photo added to mindat.org

Dufrenite with Kidwellite, Beraunite & Cacoxenite from the Coon Creek Mine, Polk Co., AR, U.S. Specimen measures approximately 9.1 x 6.6 cm.
Peter Hargis - 26th January 2015
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