Nitrocalcite
A variety of Minerals
What is Nitrocalcite?
Calcium nitrate, also called Norgessalpeter (Norwegian saltpeter), is an inorganic compound with the formula Ca(NO3)2. This colourless salt absorbs moisture from the air and is commonly found as a tetrahydrate. It is mainly used as a component in fertilizers but has other applications. Nitrocalcite is the name for a mineral which is a hydrated calcium nitrate that forms as an efflorescence where manure contacts concrete or limestone in a dry environment as in stables or caverns. A variety of related salts are known including calcium ammonium nitrate decahydrate and calcium potassium nitrate decahydrate.
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Nitrocalcite Localities Map
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Quick Facts
Physical Properties
- Color
- White, grey; colourless in transmitted light
- Hardness (Mohs)
- 1 - 2
- Density
- 1.9 g/cm³
Chemical Properties
- Chemical Formula
- Ca(NO3)2 · 4H2O
- Elements
- Ca, H, N, O
Also Known As

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