Kremersite
A variety of Minerals
What is Kremersite?
Kremersite is a rare mineral which is a hydrated multiple chloride of iron, ammonium and potassium with the formula: (NH4,K)2FeCl5·H2O. Kremersite is a brown-red to orange mineral that crystallizes in the orthorhombic system. It is a water-soluble mineral that is found around volcanic fumaroles. Occurs at Vesuvius, Italy and Mount Etna, Sicily. It was discovered in 1853 and named for the German chemist, Peter Kremers (born 1827).
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Kremersite 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.
Kremersite Localities Map
See where Kremersite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Brown-red
- Density
- 2 g/cm³
Chemical Properties
- Chemical Formula
- (NH4,K)2[Fe3+Cl5(H2O)]
- Elements
- Cl, Fe, H, N, O
Also Known As
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Kremersite FAQs
How do I identify Kremersite?
Kremersite can be identified by its Brown-red color. Look for these key characteristics when examining specimens.
What color is Kremersite?
Kremersite typically appears in Brown-red. Color can vary depending on impurities and formation conditions.
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