Clinozoisite
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| Clinozoisite | |
|---|---|
 Clinozoisite | |
| General | |
| Category |
Sorosilicates Epidote group |
| Formula (repeating unit) | {Ca2}{Al3}[O|OH|SiO4|Si2O7] |
| Strunz classification | 09.BG.05a |
| Dana classification | 58.2.1a.4 |
| 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
- Mineral Handbook
- Mindat
- Webmineral data
- Nesse, William D., "Introduction to Mineralogy," (c)2000 Oxford University Press ISBN 0-19-510691-1
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