Formula: CoSe2
Origin of name: after locality Trogtal quarry, Harz Mountains, Germany
Crystal system: cubic
Crystal class: 2/m -3
Twinning:
Unit cell:
Colour: violet, rose-violet, pinkish violet
Diaphaneity:
Luster:
Habit: massive
Hardness: 7
Specific gravity: 7.12
Cleavage: none
Tenacity:
Streak:
Synonyms/varieties:
Comments: dimorphous with hastite, series with krutaite, found in polished section only
| 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 |