Strengite

A variety of Minerals

Strengite specimen - rock identification

What is Strengite?

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.

Strengite Market Value Calculator

Estimate the market value of Strengite using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.

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Strengite Localities Map

See where Strengite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.

Map preview
North ZoneCentral RidgeSouth Basin

Interactive map layers and collecting notes are available in the app.

Quick Facts

Physical Properties

Color
Purple, violet, pink, peach-blossom-red, carmine, greenish white, colorless; Colourless to pale pink in transmitted light.
Hardness (Mohs)
3.5 - 4
Density
2.84 g/cm³
Streak
white

Chemical Properties

Chemical Formula
FePO4 · 2H2O
Elements
Fe, H, O, P
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