Minerals Title Bar

Calcite Sample

Calcite


Chemical Composition: CaCO3
Group: Calcite
System: Hexagonal
Family: Carbonates
Hardness: 3


  • Rhombohedral, scalenohedral or prismatic crystals
  • Other colours (colourless, white, pink, green, yellow)
  • Light
  • Transparent
  • Soluble in cold, dilute hydrochloric acid
  • Infusible, but dissociates at a high temperature
  • Compact masses are used in building, metallurgy, the manufacture of fertilizers, chemical industry