Mineral 1.0Test your knowledge of specific minerals

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  SilicateAugite
(Ca,Na)(Mg,Fe,Al,Ti)(SiAl)2O6

Most distinguishing features:
Colour, cleavage and hardness are indicative of a pyroxene. Augite has 2 cleavage planes at 90.

Industrial/economical uses:
None.

  SilicateWollastonite
CaSiO3

Most distinguishing features:
Resembles tremolite, but has different cleavage.

Industrial/economical uses:
Replacement for chrysotile asbestos in fire-resistant building supplies. Also used in paints, film and plastics.