Tags: Chemical Substance, Mineral.
Devilline is a sulfate mineral with the chemical formula CaCu4(SO4)2(OH)6•3H2O. The name originates from the French chemist’s name Henri Etienne Sainte-Claire Deville (1818–1881). Devilline crystallizes in the monoclinic system. Crystallographically it contains three vectors of unequal lengths and two pairs of vectors are perpendicular while the other pair makes an angle other than 90°. Devilline is prismatic and belongs to the crystal class 2/m.