Coalingite is a brown colored carbonate mineral; it is also known as carbonate mineral coalingite. It occurs in bronze brown, light brown and reddish brown in color. Colingnite has a resinous luster, and its hardness varies between the hardness of talc and gypsum.It is associated with other minerals such as antigorite, artinite, brucite, calcite, chromite, chrysotile, hydromagnesite, hydrotalcite-pyroaurite, lizardite, magnetite, uvarovite.Coalingite is developed from brucite which is rich in iron, in the surface weathering zone of a serpentinite near Coalinga, California, USA. It is formed after collection in thin veinlets in serpentinite, from a layered ultramafic complex known as Muskox Intrusive found in Canada. The name coalingite was proposed because of the occurrence of this mineral nearby Coalinga, California. It is also said that many ferro-brucites, which are inadequately described in the literature, can be either coalingite or coalingite-rich mixtures. Chemically, coalingite mineral is a compound of 5 elements- carbon, hydrogen, iron, magnesium and oxygen. It is soft and it occurs at a depth of 20ft to 30ft in 0.1 mm to 0.2 mm thickness.