description Phosphosiderite Overview
Phosphosiderite is a hydrated iron(III) phosphate mineral with the formula FePO4·2H2O and a monoclinic crystal structure. It occurs in colors ranging from purple and reddish violet to rose, peach-pink, brownish yellow, green, or colorless, and it has a relatively low Mohs hardness of 3.5 to 4. The mineral was described in 1890 from the Kalterborn Mine in Germany, and its name combines phosphate with the Greek word sideros, meaning iron; colored material is used for collector specimens and occasional jewelry.
help Phosphosiderite FAQ
What is phosphosiderite?
Phosphosiderite is a hydrated iron(III) phosphate mineral with the chemical formula FePO4·2H2O. It has a monoclinic crystal structure.
What colors can phosphosiderite be?
It can appear purple, reddish violet, rose, peach-pink, brownish yellow, green, or colorless. The visible color depends on the mineral specimen and impurities.
Is phosphosiderite a hard gemstone?
Phosphosiderite has relatively low hardness on the Mohs scale. That means it needs more care than harder gem materials when used in jewelry or collected as a polished stone.
What is the crystal system of phosphosiderite?
Its crystal structure is monoclinic. Chemically, it is a hydrated iron(III) phosphate with the formula FePO4·2H2O.
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