Formula: NaCrSi2O6
Origin of name: From Greek kosmos = universe and chloros = green
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell:
Colour: Emerald green
Diaphaneity:
Luster:
Habit: Polycrystalline aggregates
Hardness: 6
Specific gravity: 3.60
Cleavage: 2; {110} well developed, {001} pronounced parting
Tenacity:
Streak:
Synonyms/varieties:
Comments: From meteorites
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