Mineral 1.0Test your knowledge of specific minerals

Material: All | Silicates | Halides | Carbonates | Sulfates | Oxides | Phosphates | Hydroxides | Native elements | 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: Excellent cubic cleavage, crystals usually very evident
Lustre: Metallic
Hardness: 2.5
Cleavage: Perfect cubic
Fracture: Subconchoidal
Streak: Lead gray
Rxn w/ Acid: Weak
Magnetism: None
Specific Gravity: 7.6

Hint: Gives off a rotten-egg smell in HCl, very high SG, very metallic lustre.

  

Fluorite
Muscovite
Stibnite
Pyrite (massive)
Galena
Chalcedony
Apatite
Kyanite
Chromite
Tourmaline
Biotite
Corundum
Wollastonite
Aragonite
Topaz
Barite
 
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