Formula: CO(NH2)2
Origin of name: from occurrence in urine
Crystal system: Tetragonal
Crystal class: 4 2m
Twinning:
Unit cell: a = 5.646, c = 4.701
Colour: Pale yellow to pale brown, colourless
Diaphaneity: Translucent
Luster:
Habit: crystals prismatic, elongated, to 3 mm, massive groupings, crusts, stalagmites
Hardness:
Specific gravity: 1.33
Cleavage: none
Tenacity:
Streak: Yellow white
Synonyms/varieties:
Comments: Soluble in water
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