Formula: (Ta,Nb,Sn,Fe,Mn)4O8
Origin of name: From Greek mythological character Ixion
Crystal system: Monoclinic
Crystal class: 2/m 2/m 2/m
Twinning:
Unit cell:
Colour: Blackish gray to steel-gray
Diaphaneity: Opaque
Luster: Metallic
Habit: Crystals prismatic, rectangular
Hardness: 6 to 6.5
Specific gravity: 7.03 to 7.23
Cleavage: None
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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