Occurs in Pinal County.
Chemical Formula: Ca(NO3)2·4H2O
Specific Gravity: 1.68-1.85
Hardness: 2.5
Nitrocalcite is a calcium nitrate mineral that often forms as white to grayish-white crusts or coatings. It is found in arid regions as a product of evaporation.
Next Pinal County mineral: Nontronite