Carnallite

carnalitemagnesium potassium trichloride
Carnallite (also carnalite) is an evaporite mineral, a hydrated potassium magnesium chloride with formula KMgCl 3 ·6(H 2 O).wikipedia
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Evaporite

evaporitesevaporiticevaporite deposits
Carnallite (also carnalite) is an evaporite mineral, a hydrated potassium magnesium chloride with formula KMgCl 3 ·6(H 2 O).
The most common minerals that are generally considered to be the most representative of marine evaporites are calcite, gypsum and anhydrite, halite, sylvite, carnallite, langbeinite, polyhalite, and kainite.

Magnesium

MgMg 2+ Mg2+
Carnallite (also carnalite) is an evaporite mineral, a hydrated potassium magnesium chloride with formula KMgCl 3 ·6(H 2 O).
Although magnesium is found in more than 60 minerals, only dolomite, magnesite, brucite, carnallite, talc, and olivine are of commercial importance.

Potassium

KK + potassium ion
Carnallite (also carnalite) is an evaporite mineral, a hydrated potassium magnesium chloride with formula KMgCl 3 ·6(H 2 O).
Sylvite (KCl), carnallite, kainite and langbeinite are the minerals found in large evaporite deposits worldwide.

Kieserite

Carnallite occurs with a sequence of potassium and magnesium evaporite minerals: sylvite, kainite, picromerite, polyhalite, and kieserite.
It occurs in association with halite, carnallite, polyhalite, anhydrite, boracite, sulfoborite, leonite, epsomite and celestine.

Kainite

Carnallite occurs with a sequence of potassium and magnesium evaporite minerals: sylvite, kainite, picromerite, polyhalite, and kieserite.
It is often accompanied by anhydrite, carnallite, halite, and kieserite.

Hygroscopy

hygroscopicdeliquescenthygroscopicity
The mineral is deliquescent (absorbs moisture from the surrounding air) and specimens must be stored in an airtight container.
Most deliquescent materials are salts, including calcium chloride, magnesium chloride, zinc chloride, ferric chloride, carnallite, potassium carbonate, potassium phosphate, ferric ammonium citrate, ammonium nitrate, potassium hydroxide, and sodium hydroxide.

Alkali metal

alkali metalsalkaligroup 1
The cations are mostly of the alkali metal group.
It occurs naturally in the minerals leucite, pollucite, carnallite, zinnwaldite, and lepidolite, although none of these contain only rubidium and no other alkali metals.

Halide minerals

Halide mineralhalideschloride

Halogen

halogensgroup 1717
They are composed of a halogen and a metal ion.
The mineral halite is the mineral that is most commonly mined for chlorine, but the minerals carnallite and sylvite are also mined for chlorine.

Dead Sea

The Dead SeaSalt SeaDead Sea Panorama Complex
In contrast, both Israel and Jordan produce potash from the Dead Sea by using evaporation pans to further concentrate the brine until carnallite precipitates, dredging the carnallite from the pans, and processing to remove the magnesium chloride from the potassium chloride.
Both companies, Dead Sea Works Ltd. and Arab Potash, use extensive salt evaporation pans that have essentially diked the entire southern end of the Dead Sea for the purpose of producing carnallite, potassium magnesium chloride, which is then processed further to produce potassium chloride.

Potassium chloride

KClmuriate of potashpotassium
In contrast, both Israel and Jordan produce potash from the Dead Sea by using evaporation pans to further concentrate the brine until carnallite precipitates, dredging the carnallite from the pans, and processing to remove the magnesium chloride from the potassium chloride.
Potassium chloride is extracted from minerals sylvite, carnallite, and potash.

Dabusun Lake

DabusunDabusun NorLake Dabusun
Carnallite is mostly found in saline marine deposits, although beds exist in the endorheic Qaidam Basin of China's Qinghai Province near Dabusun Nor.
In addition to common salt, it also has an abundance of carnallite (potassium magnesium chloride) in an area of 2 x and magnesium sulfate.

Chloride

Cl − chloridesCl
Carnallite (also carnalite) is an evaporite mineral, a hydrated potassium magnesium chloride with formula KMgCl 3 ·6(H 2 O).

Orthorhombic crystal system

orthorhombicorthorombicorthorhombic system
It is usually massive to fibrous with rare pseudohexagonal orthorhombic crystals.

Sylvite

sylvine
Carnallite occurs with a sequence of potassium and magnesium evaporite minerals: sylvite, kainite, picromerite, polyhalite, and kieserite.

Picromerite

Schönite
Carnallite occurs with a sequence of potassium and magnesium evaporite minerals: sylvite, kainite, picromerite, polyhalite, and kieserite.

Polyhalite

Carnallite occurs with a sequence of potassium and magnesium evaporite minerals: sylvite, kainite, picromerite, polyhalite, and kieserite.

Sedimentary basin

basinbasinssedimentary basins
Carnallite is an uncommon double chloride mineral that only forms under specific environmental conditions in an evaporating sea or sedimentary basin.

Carlsbad, New Mexico

CarlsbadCarlsbad, NMCarlsbad City
It is mined for both potassium and magnesium and occurs in the evaporite deposits of Carlsbad, New Mexico; the Paradox Basin in Colorado and Utah; Stassfurt, Germany; the Perm Basin, Russia; and the Williston Basin in Saskatchewan, Canada.

Paradox Basin

It is mined for both potassium and magnesium and occurs in the evaporite deposits of Carlsbad, New Mexico; the Paradox Basin in Colorado and Utah; Stassfurt, Germany; the Perm Basin, Russia; and the Williston Basin in Saskatchewan, Canada.

Colorado

State of ColoradoCOColorado, USA
It is mined for both potassium and magnesium and occurs in the evaporite deposits of Carlsbad, New Mexico; the Paradox Basin in Colorado and Utah; Stassfurt, Germany; the Perm Basin, Russia; and the Williston Basin in Saskatchewan, Canada.

Utah

UTState of UtahUtah, U.S.
It is mined for both potassium and magnesium and occurs in the evaporite deposits of Carlsbad, New Mexico; the Paradox Basin in Colorado and Utah; Stassfurt, Germany; the Perm Basin, Russia; and the Williston Basin in Saskatchewan, Canada.

Staßfurt

StassfurtLeopoldshallRathmannsdorf
It is mined for both potassium and magnesium and occurs in the evaporite deposits of Carlsbad, New Mexico; the Paradox Basin in Colorado and Utah; Stassfurt, Germany; the Perm Basin, Russia; and the Williston Basin in Saskatchewan, Canada.

Germany

GermanGERFederal Republic of Germany
It is mined for both potassium and magnesium and occurs in the evaporite deposits of Carlsbad, New Mexico; the Paradox Basin in Colorado and Utah; Stassfurt, Germany; the Perm Basin, Russia; and the Williston Basin in Saskatchewan, Canada.