Formula: CaCO3 . H2O
Origin of name: From Greek mono - one and hydro - water and from calcite
Crystal system: Hexagonal
Crystal class: 3
Twinning:
Unit cell: a = 10.566, c = 7.573
Colour: White to gray, light green
Diaphaneity:
Luster: Earthy, dull
Habit: Massive, fine-grained, cryptocrystalline
Hardness:
Specific gravity: 2.38
Cleavage: None
Tenacity:
Streak: White
Synonyms/varieties:
Comments: Fluorescent
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