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.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Nitrocalcite 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.
Nitrocalcite Localities Map
See where Nitrocalcite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
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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Nitrocalcite FAQs
How do I identify Nitrocalcite?
Nitrocalcite can be identified by its hardness of 1 - 2 on the Mohs scale, White color. Look for these key characteristics when examining specimens.
What color is Nitrocalcite?
Nitrocalcite typically appears in White, grey; colourless in transmitted light. Color can vary depending on impurities and formation conditions.
How hard is Nitrocalcite?
Nitrocalcite has a hardness of 1 - 2 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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