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Related to carnallite: sylvinite, sylvite


A white, brownish, or reddish mineral, KMgCl3·6H2O, an ore of potassium, used to manufacture potash salts.

[After Rudolf von Carnall (1804-1874), German mining engineer.]


(Minerals) a white or sometimes coloured mineral consisting of a hydrated chloride of potassium and magnesium in orthorhombic crystalline form: a source of potassium and also used as a fertilizer. Formula: KCl.MgCl2.6H2O
[C19: named after Rudolf von Carnall (1804–74), German mining engineer; see -ite1]


(ˈkɑr nlˌaɪt)

a white mineral, hydrous chloride of potassium and magnesium, KMgCl3∙6H2O, used as a source of potassium and magnesium.
[1875–85; < German]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.carnallite - a white or reddish mineral consisting of hydrous chlorides of potassium and magnesium; used as a fertilizer and as a source of potassium and magnesium
atomic number 12, magnesium, Mg - a light silver-white ductile bivalent metallic element; in pure form it burns with brilliant white flame; occurs naturally only in combination (as in magnesite and dolomite and carnallite and spinel and olivine)
atomic number 19, potassium, K - a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite
atomic number 37, Rb, rubidium - a soft silvery metallic element of the alkali metal group; burns in air and reacts violently in water; occurs in carnallite and lepidolite and pollucite
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
References in periodicals archive ?
The 365km of Danakil property hosts three potash horizons, including sylvinite, carnallite and kainitite.
Recognizing that the K20 contained in carnallite is unlikely to be recovered in the proposed ore treatment method, it was not included.
The overall production strategy is to initially produce standard MOP from Sylvite mineralisation and to progressively transition the project to include the production of Granular MOP, standard and granular SOP and K-Mg sulphates from Carnallite, Kainite and Kieserite mineralisation.
The Atlantic Potash Project covers a large land position of approximately 178,000 hectares (1,780km2) in the attractive carnallite and sylvinite potash bearing Sergipe-Alagoas basin.
The highly saline water in the APC salt ponds is slowly evaporated by the heat of the sun to produce a mineral-rich slurry called carnallite, which is then processed into potash at the Safi refinery.
As far as we understand this area has a highrisk for sink holes (according to Russian Railways, the accident happenedas a result of collapse in the soil near a carnallite course), and thus theaccident came as no big surprise.
It is made up of an intimate mixture of sylvite, halite, some carnallite and various minor impurities.
Bulk potash is water soluble and is typically composed of more than 98% potassium chloride (KCl) but it also contains small amounts of sodium chloride (NaCl) and carnallite (KMg[Cl.
Hydrated chlorites other than carnallite (such as bischofite), brines and seawater also represent important Mg resources.
THE EUROPEAN Investment Bank (EIB) is planning to lend Canada's MagIndustries Corp Euro 13 million to help develop a potash plant, a magnesium smelter and rehabilitate hydro-electric power station units serving carnallite (magnesium ore) and salt deposits, at Kouilou, Pointe Noire, Congo (Brazzaville).
The plant was to switch to another type of raw material, solid dehydrated carnallite, which would reduce energy consumption during smelting and would enable the plant to skip the de-watering phase and go straight to electrolysis.