Strunz classification 8.CD.10 Crystal system Orthorhombic | Formula(repeating unit) FePO4 · 2H2O Dana classification 40.04.01.02 | |
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Crystal class Dipyramidal (mmm)H-M Symbol: (2/m 2/m 2/m) | ||
Strengite is a relatively rare iron phosphate mineral with the formula: FePO4 · 2H2O. The mineral is named after the German mineralogist Johann August Streng (1830–1897). Lavender, pink or purple in hue, it is similar to variscite and is partially soluble, particularly in conditions where there is a low pH and low oxidation-reduction potential.
References
Strengite Wikipedia(Text) CC BY-SA