Salammoniac
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Salammoniac, also sal ammoniac or salmiac, is a rare naturally occurring mineral composed of ammonium chloride, NH₄Cl. It forms colorless, white, or yellow-brown crystals in the isometric-hexoctahedral class. It has very poor cleavage and is... Wikipedia
Color: Colorless, white, pale gray; may be pale yellow to brown, if impure
Cleavage: Imperfect on
Crystal class: Hexoctahedral (m3m); H-M symbol: (4/m 3 2/m)
Crystal habit: Crystals skeletal or dendritic; massive, encrustations
Crystal system: Isometric
Formula mass: 53.49 g/mol
Formula (repeating unit): NH4Cl