Clinozoisite is a mineral, a complex silicate of calcium and Aluminium, formula, Ca2Al3(O,OH,SiO4, Si2O7). It is usually a grey green colour; it was originally discovered in Austria and is named for its resemblance to Zoisite. Zoisite is a calcium aluminium hydroxy sorosilicate belonging to the epidote group of minerals. ...
Clinozoisite, a calcium aluminum silicate hydroxide mineral of the epidote group, is largely unstudied.
It was subsequently found in 1981 on the 1400 level in the Sterling Mine occurring as a green massive mineral, associated with amphibole, titanite, calcite, diopside, and a possible hydromica.
Later that year it was again encountered at Sterling Hill, in the 935 stope, on the 500 level, as a pale violet mixture of clinozoisite and plagioclase, associated with diopside and calcite.