Esperiet

Structural context

Esperite
Crystal System monoclinicCrystal Class prismaticSpace Group P21/m

Chemical context

Stoichiometric formulas

Esperite
mindat.org
  • March 13, 2023PbCa2Zn3(SiO4)3
IMA
  • March 13, 2023PbCa2(ZnSiO4)3
mineralogy.rocks
  • Aug. 30, 2022Pb2+Ca2(ZnSiO4)3

Physical properties

ColorColor entities, recognized using a custom trained NER model
    • pale tan
    Color noteOriginal color note from the source
    White, off-white, pale tan
    StreakStreak entities, recognized using a custom trained NER model
      Streak noteOriginal streak note from the source
      White
      Lustre
      Sub-Vitreous
      Greasy
      Fracture
      Irregular/Uneven
      Transparency
      Transparent
      Translucent
      Tenacity
      brittle
      Hardness
      5
      Measured density
      4.28—4.42
      Calculated density
      4.25