Strengite

Strengite

Strengite is a relatively rare iron phosphate mineral with the formula: FePO₄ · 2H₂O.^[4] The mineral is named after the German mineralogist Johann August Streng (1830–1897).^[5] Lavender, pink or purple in hue, it is similar to variscite^[6] and is partially soluble, particularly in conditions where there is a low pH and low oxidation-reduction potential.^{[4]   Wikipedia}  

 ^{You may remember my pictures of Variscite on Nov. 26, 2016.}

^Strengite

 

Strengite

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