NaClCubic

Halite

NaCl

Halides
Chemical FormulaNaCl
Crystal SystemCubic
Mohs Hardness2.5
Specific Gravity2.17
ColorColorless, white, yellow, blue, pink
LusterVitreous
StreakWhite
CleavageThree directions at 90
FractureConchoidal

Occurrence

Found in evaporite deposits. Also known as rock salt. Forms when seawater evaporates.

Hardness on Mohs Scale

2.5 / 10
Talc (1)Quartz (7)Diamond (10)