Onyks

Structural context

Onyx
Crystal System trigonal

Chemical context

Stoichiometric formulas

Onyx
mindat.org
  • March 13, 2023SiO2

Physical properties

ColorColor entities, recognized using a custom trained NER model
      Color noteOriginal color note from the source
      Black and white
      StreakStreak entities, recognized using a custom trained NER model
        Streak noteOriginal streak note from the source
        White
        Lustre
        Waxy
        Fracture
        Conchoidal
        Transparency
        Translucent
        Opaque
        Hardness
        6.5—7
        Measured density
        2.6—2.65