Mineral 1.0Test your knowledge of specific minerals

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  SilicateActinolite
Ca2(Mg,Fe)5Si8O22(OH)2

Other names/forms:
Tremolite

Most distinguishing features:
Habit and colour are best indicators.

  SilicateHornblende
Ca2(Mg,Fe)4Al(Si7Al)O22(OH,F)2

Most distinguishing features:
Prominent striations, prismatic crystals and angle on cleavages is distinguishing.

Industrial/economical uses:
Ornamental.

  SilicateTremolite
Ca2(Mg,Fe)5Si8O22(OH)2

Other names/forms:
Actinolite

Most distinguishing features:
Noticable habit of white acicular grains.

Industrial/economical uses:
Sometimes used as an asbestos mineral, and thus linked as a health hazard.