Formula: CaMn6SiO12
Origin of name: for Louis Neltner, Morocan geologist
Crystal system: tetragonal
Crystal class: 4/m 2/m 2/m
Twinning:
Unit cell:
Colour: black
Diaphaneity:
Luster: submetallic
Habit: crystals dipyramidal, smaller than 1 mm, rare, small grains
Hardness: 6
Specific gravity: 4.63
Cleavage: none
Tenacity:
Streak:
Synonyms/varieties:
Comments:
| Back to Alphabetical list | Colour photos | Thin sections | SEM images | TEM images | vibrational spectra description | IR spectra | Raman spectra | N-IR spectra | F-IR spectra | IES spectra |