Formula: (Mn,Mg)7(SiO4)3(OH)2
Origin of name: From manganese and humite
Crystal system: Orthorhomic
Crystal class: 2/m 2/m 2/m
Twinning:
Unit cell:
Colour: Brownish-orange
Diaphaneity:
Luster: Subadamantine
Habit: Anhedral grains to 1 cm
Hardness: 4
Specific gravity: 3.83
Cleavage: 1; {010} perfect
Tenacity:
Streak:
Synonyms/varieties:
Comments: Mn analogue of humite
| 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 |