Formula: Ca4Al6O12(SO4)
Origin of name: for locality, Har Ye'elim and Nahal Ye'elim, a hill and wadi in the Hatrurim basin, Israel
Crystal system: Cubic/Isometric
Crystal class: 432
Twinning:
Unit cell: a = 18.392
Colour: Colourless
Diaphaneity: Transparent
Luster:
Habit: crystals 3 to 60 microns
Hardness:
Specific gravity: 3.61
Cleavage:
Tenacity:
Streak: White
Synonyms/varieties:
Comments:
| Back to Alphabetical list | Colour photos | Optical properties/Thin sections | SEM images | TEM images | vibrational spectra description | IR spectra | Raman spectra | N-IR spectra | F-IR spectra | IES spectra |