Mohrite
A variety of Minerals
What is Mohrite?
Mohrite, (NH4)2Fe(SO4)2·6(H2O), is a rare sulfate mineral originally found in the geothermal fields of Tuscany, Italy. This Fe-dominant analogue of boussingaultite is sometimes reported from burning coal dumps. The mineral crystallizes in the monoclinic crystal system with space group P21/a.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Mohrite 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.
Mohrite Localities Map
See where Mohrite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Pale green to colorless
- Hardness (Mohs)
- 2 - 2.5
- Density
- 1.838 g/cm³
Chemical Properties
- Chemical Formula
- (NH4)2Fe(SO4)2 · 6H2O
- Elements
- Fe, H, N, O, S
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Mohrite FAQs
How do I identify Mohrite?
Mohrite can be identified by its hardness of 2 - 2.5 on the Mohs scale, Pale green to colorless color. Look for these key characteristics when examining specimens.
What color is Mohrite?
Mohrite typically appears in Pale green to colorless. Color can vary depending on impurities and formation conditions.
How hard is Mohrite?
Mohrite has a hardness of 2 - 2.5 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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