Dolomite specimens Much of the Dolomite crystal specimens we sell are sprinkled with tiny crystals of pyrite and marcasite. Dolomite Rock is used for decoration, as a building material, and for extracting certain metals from the ore. For instance, it is used in the preparation of magnesium salts.
Dolomite is used to make magnesia.
Dolomite Crystals are hexagonal, most commonly formed in groups of small rhombohedral crystals with curved, saddle-like faces. We sell specimens small and large.