Warwickite is an iron magnesium titanium borate mineral with the chemical formula (MgFe)3Ti(O, BO3)2 or Mg(Ti,Fe3+, Al)(BO3)O.

It occurs as brown to black prismatic orthorhombic crystals which are vitreous and transparent.

[3][4] It occurs metasomatized limestone skarns and in lamproite and carbonatite veinlets.

It has also been reported from Bancroft, Ontario; in Murcia Province, Spain; in Siberia and near Pyongyang, North Korea.

[5] This article about a specific mineral or mineraloid is a stub.