Halite

Halite (/ˈhaləit/), commonly kent as rock saut, is the meeneral furm o sodium chloride (NaCl). Halite furms isometric crystals. The mineral is teepically colourless or white, but mey be licht blae an aa, mirk blae, purpie, pink, reid, orange, yellae or gray dependin on the amoont an teep o impurities. It commonly occurs wi ither evaporite deposit meenerals lik several o the sulfates, halides, an borates.

Halite
Halite frae the Wieliczka salt mine, Małopolskie, Poland
General
Category	Halide meeneral
Formula (repeatin unit)	NaCl
Strunz clessification	03.AA.20
Creestal seestem	Cubic
Space group	Isometric hexoctahedral 4/m 3 2/m
Unit cell	a = 5.6404(1) Å; Z = 4
Identification
Formula mass	58.433 g/mol
Colour	Colourless or white; can be blae, purpie, reid, pink, yellae, orange, or gray
Creestal habit	Predominantly cubes an in massive sedimentary beds, but an aa granular, fibrous an compact
Cleavage	Perfect {001}, three directions cubic
Fractur	Conchoidal
Tenacity	Brickle
Mohs scale haurdness	2 - 2.5
Skinkle	Vitreous
Streak	White
Diaphaneity	Skyre
Speceefic gravity	2.17
Optical properties	Isotropic
Refractive index	n = 1.544
Solubility	Watter soluble
Ither chairacteristics	Sauty gust, Fluorescent
References