Letovicite
A variety of Minerals

What is Letovicite?
Letovicite (/lɛtoʊˈvɪsaɪt/) is an ammonium sulfate mineral with composition (NH4)3H(SO4)2 (IUPAC: triammonium sulfate hydrogensulfate, Nickel–Strunz classification 07.AD.20). It is a rare colorless or white monoclinic secondary mineral formed during the burning of waste coal heaps and as a deposit in hot springs. It was first described from the Letovice region of Moravia in 1932. Geologic occurrences also include Austria, Germany, Hungary, Italy, Poland, South Africa, Tajikistan and the United States.
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Letovicite Localities Map
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Quick Facts
Physical Properties
- Color
- Colourless, white; colourless in transmitted light
- Hardness (Mohs)
- 1 - 2
- Density
- 1.83 g/cm³
Chemical Properties
- Chemical Formula
- (NH4)3H(SO4)2
- Elements
- H, N, O, S

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