Clinozoisite

Clinozoisite
Clinozoisite

Clinozoisite
General
Category Mineral
Chemical formula {Ca2}{Al3}[O|OH|SiO4|Si2O7]
Crystal symmetry 2/m - Prismatic
Identification
Color colorless, green, gray, light green, yellow green
Crystal system monoclinic
Cleavage perfect on {001}
Fracture irregular/uneven
Mohs scale hardness 7
Luster vitreous
Streak grayish white
Diaphaneity transparent, translucent
Specific gravity 3.3 - 3.4

Clinozoisite is a mineral, a complex sorosilicate of calcium and aluminium and is usually a grey green colour.

Its formula is Ca2Al3[O|OH|SiO4|Si2O7].

It was originally discovered in 1896 in Tyrol, Austria, and is so-named because of its resemblance to zoisite.

Forms a continuous solid solution series with substitution of Fe(|||) for Al(|||). Only the m3 site accepts Fe(III) readily.

References