Formula: Na12Ca3Fe2Si12O36
Origin of name: From locality; Lake Imandra, Kola Peninsula, Russia
Crystal system: Orthorhombic
Crystal class: mm2
Twinning:
Unit cell:
Colour: Honey-yellow
Diaphaneity:
Luster: Vitreous
Habit: Tiny anhedral grains
Hardness: 4
Specific gravity: 2.93
Cleavage: None
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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