Formula: Ca(Fe,Ca,Mn)Si2O6
Origin of name: From ferrous iron (Fe2+) and bustamite
Crystal system: Triclinic
Crystal class: -1
Twinning:
Unit cell:
Colour: Greenish
Diaphaneity:
Luster:
Habit: Massive
Hardness: 4.5 to 5
Specific gravity: 3.09
Cleavage: 3; {100}perfect, {001} and {-102} good
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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