Is it Calcite or Dolomite?
Dolomite, a calcium, magnesium carbonate, is not as common as calcite. It also forms in lovely crystals, but not in as wide a variety as calcite. ... We quarry it, use it for road material, manufacture cement from it, cut it into building blocks, and use it for ordinary public buildings. Midwestern limestone is a tan or buff color, and is also ...