Kobaltit

Structural context

Cobaltite
Crystal System orthorhombicCrystal Class orthorhombic pyramidalSpace Group Pca21

Chemical context

Stoichiometric formulas

Cobaltite
mindat.org
  • March 13, 2023CoAsS
IMA
  • March 13, 2023CoAsS
mineralogy.rocks
  • Aug. 30, 2022Co3+(AsS)3-

Physical properties

ColorColor entities, recognized using a custom trained NER model
  • reddish silver white
  • violet steel gray
    Color noteOriginal color note from the source
    Reddish silver white, violet steel gray, or black.
    StreakStreak entities, recognized using a custom trained NER model
    • grayish black
    Streak noteOriginal streak note from the source
    Grayish black
    Lustre
    Metallic
    Fracture
    Irregular/Uneven
    Transparency
    Opaque
    Luminescence
    None
    Tenacity
    brittle
    Hardness
    5.5
    Calculated density
    6.335