Formula: Na2Ca(CO3)2
Origin of name: from natrium = sodium and fairchildite
Crystal system: orthorhombic
Crystal class: unknown
Twinning:
Unit cell:
Colour: white
Diaphaneity:
Luster: vitreous
Habit: crystals platy, to 1 to 2 cm, fan-shaped aggregates
Hardness: 2.5
Specific gravity:
Cleavage: 1; perfect
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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