Searles Lake, San Bernardino Co., California, USA

NaCl

Crystal System: cubic
Colour: colourless, whitish, yellow, red, purple or blue
Lustre: vitreous
Habitus: granular to compact masses. Crystals are usually cubic
Hardness: 2½
Fracture: conchoidal
Cleavage: {100} perfect
Density:  2.165 g/cm³ 
Origin and geological occurrence: typical of evaporitic rocks in the sedimentary environments. It can occur also as volcanic sublimates and in cave deposits. Stable in low-grade metamorphic rocks

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Samples:

3.4 Halite Colourless cubic crystals. Salton Sea, Imperial County, California, USA #halides