Although the color range of Halite can be caused by impurities , the deep blue and violet colors are actually caused by defects within the crystal lattice , and the pink and peach colors of many dry lake Halite specimens are caused by bacteria from various algae.
Artificial Halite can easily be grown as crystals by allowing a saturated saltwater solution to evaporate. Hopper -shaped cubes may result as the brine evaporates and the crystal grows. A few Halite specimens on the market are actually artificially grown crystals formed in this manner. It forms only under very unique conditions where the water does not dissolve the salt. When the salt in sea water or saline spring water in very cold climates crystallize s, it forms together with Ice which has no dissolving effect on salt.
The ice forms an integral part of the structure of the mineral, and causes the mineral to be stable. Rock Salt. Let us know how we can update this page Click for more details. We strive for accurate content and locality information. If you feel any of the content is incorrect, or if you feel we are missing vital locality information, please fill out the form below so we can update the site.
If you are requesting a locality be added, please only include significant locality occurences for the mineral. About Minerals. Link Directory Donations Mobile Site. Chemical Formula. Sodium chloride. Colorless, white, red, yellow, orange, pink, blue, violet, green, and gray.
May also be multicolored with a solid and clear color such as blue and white. Crystal System. Crystal Forms and Aggregates. Crystals occur as cube s, sometimes distorted with hopper growths.
Rarely occurs octahedral. Normally occurs massive , grainy , incrusting , as fibrous vein s, botryoidal , stalactitic. Large cubic chunks often break apart into cubic cleavage fragment s.
Also forms as odd shaped rectangular crystal clusters and elongated scepters of cubic crystals. Transparent to translucent. Specific Gravity. Other ID Marks. In Group. It is essential for life of humans and animals. Salt is used in food preparation across the globe. Solution mining involves injecting a solvent to dissolve and recover underground soluble salt minerals. The saturated brine is pumped to the surface for recovery via solar evaporation and further processing.
Seawater is collected and allowed to evaporate in specially constructed concentration and evaporation ponds. The initial step concentrates the brine to raise the salinity and to allow various calcium, magnesium, and iron compounds to precipitate from solution. Rock and Mineral Kits. Are Water and Ice Minerals? Mohs Hardness Scale. Hardness Picks. Rocks: Galleries of igneous, sedimentary and metamorphic rock photos with descriptions.
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