Glossary of Terms
Calcium Sulfate
A salt (CaSO . H 2 O), very slightly soluble in water. In its natural form, it may exist as anhydrite (CaSO 4 ) or gypsum (CaSO 4 . H 2 O)
Source: http://palimpsest.stanford.edu/don/dt/dt0547.html
Anhydrite
Mineral calcium sulfate, CaSO4, which is gypsum without water.
Source: Leet, L. Don. 1982. Physical Geology, 6th Edition. Englewood Cliffs, NJ: Prentice-Hall
Gypsum
Hydrous calcium sulfate, CaSO4 · 2H2O. A soft, common mineral in sedimentary rocks, where it sometimes occurs in thick beds interstratified with limestones and shales. Sometimes occurs as layer under bed of rock salt since it is one of first minerals to crystallize on evaporation of seawater. Alabaster is a fine-grained massive variety of gypsum.
Source: Leet, L. Don. 1982. Physical Geology, 6th Edition. Englewood Cliffs, NJ: Prentice-Hall
Limestone
Agricultural lime is a soil additive made from pulverized limestone. The primary active component is calcium carbonate. Limestone’s effect on soil:
- it increases the pH of acidic soils
- it provides a source of calcium for plants
- it permits improved water penetration for acidic soils
Rapid Release Technology
A process that finely grinds the CaCO3 to uniform particle size with 100% passing through 100 mesh. This process allows for a greater total surface area and aids in accelerating the correction of soil pH problems and increases the availability of nutrients. All Art Wilson Co. Cal-CM Plus prilled products feature Rapid Release Technology.
