Melanit

Structural context

Andradite
Crystal System isometricCrystal Class hexoctahedralSpace Group Ia-3d

Chemical context

Stoichiometric formulas

Melanite
mindat.org
  • March 13, 2023Ca3(Fe3+,Ti)2(SiO4)3
mineralogy.rocks
  • Aug. 30, 2022Ca3(Fe3+,Ti4+)2(SiO4)3
Andradite
mindat.org
  • March 13, 2023Ca3Fe3+2(SiO4)3
IMA
  • March 13, 2023Ca3Fe3+2(SiO4)3
mineralogy.rocks
  • Aug. 30, 2022Ca3Fe3+2(SiO4)3

Physical properties

ColorColor entities, recognized using a custom trained NER model
    • greenish yellow
    • brownish yellow
    • emerald-green
    • dark green
      • brownish red
      Color noteOriginal color note from the source
      Black
      Yellow, greenish yellow to emerald-green, dark green; brown, brownish red, brownish yellow; grayish black, black; may be sectored
      StreakStreak entities, recognized using a custom trained NER model
        Streak noteOriginal streak note from the source
        White
        Lustre
        Adamantine
        Resinous
        Dull
        Fracture
        Irregular/Uneven
        Conchoidal
        Transparency
        Transparent
        Translucent
        Tenacity
        brittle
        Hardness
        6.5—7
        Measured density
        3.8—3.9
        Calculated density
        3.859