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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(c) Mineral Picture courtesy of www.yuprocks.com
Known/experimental properties:
Habit: Compact masses, often no crystals.
Lustre: Greasy
Hardness: 1
Cleavage: Perfect
Fracture: Uneven
Streak: White
Rxn w/ Acid: Unknown
Magnetism: None
Specific Gravity: 2.6 - 2.8

Hint: Mineral is very soft and are often compact masses. Colour is typical and varies to brown, green or gray.

  

Staurolite
Pyrite (massive)
Hematite (massive)
Chalcedony
Plagioclase
Galena
Actinolite
Barite
Chlorite
Halite
Calcite (massive)
Fluorite
Talc
Garnet
Corundum
Alabaster
 
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