Mineral 1.0Test your knowledge of specific minerals

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Chlorite(Mg,Fe,Al)3(Si,Al)4O10(OH)2

Class: Silicate
Subclass: Phyllosilicate
Hardness: 2 - 2.5
Density: 2.6 - 3.3
Streak: Greenish white to white
Lustre: Vitreous to somewhat pearly, waxy, dull
Colours: Greenish-black (typical)

  Crystal System: Monoclinic
Cleavage: Perfect {001}
Magnetism: None
Reaction with HCl: None

Identification in hand sample:
Colour and its low hardness are distinguishing characteristics.

Industrial / ecomonic uses:
None, however chlorite schist sometimes does have ornamental uses.

  

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