Formula: MnVAlSi2O6(OH)4
Origin of name: after its chemical composition and the
relation to carpholite. The vanadium(III)
analogue of carpholite
Crystal system: Orthorhombic
Crystal class: 2/m 2/m 2/m
Twinning:
Unit cell: a = 13.830, b = 20.681, c = 5.188
Colour: Pale straw-yellow, honey-yellow to brown
Diaphaneity: Transparent
Luster: Vitreous to silky
Habit: Fibrous
Hardness:
Specific gravity:
Cleavage:
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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