Formula: Ca2(Fe,Mn)ScSi5O14OH
Origin of name: The name reflects its composition, as the scandium analogue of babingtonite.
Crystal system: Triclinic
Crystal class: 1
Twinning:
Unit cell: a = 7.536, b = 11.734, c = 6.748, α = 91.7°, β = 93.86°, γ = 104.53°
Colour: Gray, colourless, pale green
Diaphaneity: Transparent
Luster: Vitreous
Habit:
Hardness: 6
Specific gravity: 3.24
Cleavage:
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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