Calcite

Of limestone and spar.

A common mineral consisting of crystallized calcium carbonate; a major constituent of limestone.

This concept's ID is @1~75598

Chalk

  • chalk 1 facts

    A soft whitish calcite.

  • calcium carbonate 1 facts

    A salt found in nature as chalk or calcite or aragonite or limestone.

Also contains

  • alabaster 0 facts

    A hard compact kind of calcite.

  • Iceland spar 0 facts

    A transparent calcite found in Iceland and used in polarizing microscopes.