Formula: Ca2(Al,Fe)2O5
Origin of name: For L. Brownmiller, American chemist
Crystal system: Orthorhombic
Crystal class: mm2
Twinning:
Unit cell:
Colour: Reddish brown
Diaphaneity:
Luster:
Habit: Microscopic tetragonal platelets
Hardness:
Specific gravity: 3.76
Cleavage: None
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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