Formula: (NH4,K)H2PO4
Origin of name: From composition, biphosphate and ammonium
Crystal system: Tetragonal
Crystal class: -42m
Twinning:
Unit cell:
Colour: Colourless to light buff
Diaphaneity: Transparent to translucent
Luster:
Habit: Crystals prismatic tapered; rounded crusts
Hardness:
Specific gravity: 2.04
Cleavage: None
Tenacity:
Streak:
Synonyms/varieties:
Comments: Soluble in water
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