Mispiquel

Structural context

Arsenopyrite
Crystal System monoclinicCrystal Class prismaticSpace Group P21/c

Chemical context

Stoichiometric formulas

Arsenopyrite
mindat.org
  • March 13, 2023FeAsS
IMA
  • March 13, 2023FeAsS
mineralogy.rocks
  • Aug. 30, 2022Fe3+(AsS)3-

Physical properties

ColorColor entities, recognized using a custom trained NER model
  • silver-white
  • steel-gray
    Color noteOriginal color note from the source
    Silver-white to steel-gray, may have a slight yellow appearance
    StreakStreak entities, recognized using a custom trained NER model
    • gray-black
    Streak noteOriginal streak note from the source
    Gray-black
    Lustre
    Metallic
    Sub-Metallic
    Fracture
    Irregular/Uneven
    Transparency
    Opaque
    Luminescence
    None
    Tenacity
    brittle
    Hardness
    5.5—6
    Calculated density
    6.18