Arsenico

italian term for this mineral

Structural context

Arsenic
Crystal System trigonalCrystal Class hexagonal scalenohedralSpace Group R-3m

Chemical context

Stoichiometric formulas

Arsenic
mindat.org
  • March 13, 2023As
IMA
  • March 13, 2023As
mineralogy.rocks
  • Aug. 30, 2022As

Physical properties

ColorColor entities, recognized using a custom trained NER model
  • tin-white
  • dark grey
    Color noteOriginal color note from the source
    Tin-white, tarnishing to dark grey or black.
    StreakStreak entities, recognized using a custom trained NER model
      Streak noteOriginal streak note from the source
      Grey
      Lustre
      Metallic
      Sub-Metallic
      Dull
      Fracture
      Irregular/Uneven
      Transparency
      Opaque
      Luminescence
      None
      Tenacity
      brittle
      Hardness
      3.5
      Measured density
      5.63—5.78
      Calculated density
      5.778