Cloritoide

Structural context

Chloritoid
Crystal System monoclinicCrystal Class prismaticSpace Group C2/c

Chemical context

Stoichiometric formulas

Cloritoide
mindat.org
  • March 13, 2023(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
Chloritoid
mindat.org
  • June 22, 2024Fe2+Al2O(SiO4)(OH)2
  • March 13, 2023(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
IMA
  • March 13, 2023Fe2+Al2O(SiO4)(OH)2
mineralogy.rocks
  • Aug. 30, 2022(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2

Physical properties

ColorColor entities, recognized using a custom trained NER model
  • dark green
  • green-gray
    Color noteOriginal color note from the source
    Dark green to green-gray or nearly black
    StreakStreak entities, recognized using a custom trained NER model
      • grayish
      • greenish
      Streak noteOriginal streak note from the source
      White, grayish, or very slightly greenish
      Lustre
      Vitreous
      Pearly
      Transparency
      Translucent
      Hardness
      6.5
      Measured density
      3.4—3.8
      Calculated density
      3.56