Formula: Mn(V2O6) . 4H2O
Origin of name: Honouring Stefan Ansermet (* 1964), Swiss mineral collector and photographer
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell: a = 13.17 Å, b = 10.13 Å, c = 6.983 Å, β = 111.57°
Colour: Carmine red to whine red
Diaphaneity: Transparent
Luster: Adamantine
Habit: Prismatic
Hardness: 3
Specific gravity: 2.5-2.55
Cleavage: Perfect on {110}
Tenacity: Brittle
Streak: Orange
Synonyms/varieties:
Comments: Found in late-stage hydrothermal mineralizations in fissures of massive manganese ores. IMA approved 2002
| 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 |