Dolomite Meanings, Zodiacs, Planets, Elements, Colors, Chakras, and more. Science Origin of DolomiteDolomite is a calcium, magnesium, carbonate mineral that commonly forms in small clusters of rhomehedrical shaped crystals with saddleshaped formations. This mineral can also be found in masses or grains and appears as white, grey, brown, green, pink and black. The first traces of Dolomite in ...