Images
Formula: Fe2+3(PO4)2.3H2O
Hydrated normal phosphate, phosphoferrite group, forms a
series with reddingite
Crystal System: Orthorhombic
Specific gravity: 3 to 3.2 measured
Hardness: 3 to 3½
Streak: White
Colour: Colourless, pale green, reddish brown (altered), colourless to faintly tinted green in transmitted light
Solubility: Soluble in acids
Environments
Phosphoferrite occurs as an alteration product of triphylite in zoned complex
granite pegmatites.
Associated minerals include ludlamite,
vivianite, hureaulite,
lithiophilite and siderite
(HOM).
Localities
There are two co-type localities, the Hühnerkobel Mine, Rabenstein, Zwiesel, Regen District, Lower Bavaria, Bavaria, Germany and
the Hagendorf North Pegmatite, Hagendorf, Waidhaus, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany. Here
phosphoferrite occurs in a pegmatite associated with
vivianite, triploidite
and ludlamite
(Mindat).
Back to Minerals