Steinmetzite
A variety of Minerals
What is Steinmetzite?
Steinmetzite is a very rare phosphate mineral with formula Zn2Fe(PO4)2(OH)•3H2O. It was discovered among pegmatites of Hagendorf in Germany, that are famous for rare phosphate minerals. Steinmetzite is chemically related to phosphophyllite and other zinc iron phosphates, namely plimerite and zinclipscombite.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Steinmetzite before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Quick Facts
Physical Properties
- Density
- 2.96 g/cm³
Chemical Properties
- Chemical Formula
- Zn2Fe3+(PO4)2(OH)·3H2O
- Elements
- Fe, H, O, P, Zn
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