Formula: Na3Li3Al2F12
Origin of name: from composition, Lithium and cryolite
Crystal system: Cubic
Crystal class: 4/m -3 2/m
Twinning:
Unit cell:
Colour: Colourless, white
Diaphaneity: Transparent
Luster: Vitreous
Habit: Crystals dodecahedral
Hardness: 2.5 to 3
Specific gravity: 2.77
Cleavage: 1; {110}distinct
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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