Mineral 1.0Test your knowledge of specific minerals

Material: All | Carbonates | Halides | Hydroxides | Native elements | Oxides | Phosphates | Silicates | Sulfates | Sulfides
Difficulty: Normal | Hard
  

Identify the following mineral by clicking on the buttons below to reveal its properties one by one. For a harder/more specific test, choose from the test material above.

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Known/experimental properties:
Habit:
Lustre: Vitreous to somewhat pearly, waxy, dull
Hardness: 2 - 2.5
Cleavage: Perfect {001}
Fracture:
Streak: Greenish white to white
Rxn w/ Acid: None
Magnetism: None
Specific Gravity: 2.6 - 3.3

Hint: Colour and its low hardness are distinguishing characteristics.

  

Chalcedony
Muscovite
Actinolite
Biotite
Olivine
Nepheline
Augite
Zircon
Chlorite
Tremolite
Chrysotile
Staurolite
Tourmaline
Epidote
Antigorite
 
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