Formula: (Fe,Mg)Al2Si2O6(OH)4
Origin of name: From ferrous iron (Fe2+) and carpholite
Crystal system: Orthorhombic
Crystal class: 2/m 2/m 2/m
Twinning:
Unit cell:
Colour: Dark green to gray-green
Diaphaneity:
Luster:
Habit: Crystals prismatic
Hardness: 5.5
Specific gravity: 3.04
Cleavage: 2; {010} perfect, {110} indistinct
Tenacity:
Streak:
Synonyms/varieties:
Comments: Series with carpholite and with magnesiocarpholite
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