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Carnallite

Carnallite (also carnalite) is an evaporite mineral, a hydrated potassium magnesium chloride with formula KCl.MgCl2·6(H2O). It is variably colored yellow to white, reddish, and sometimes colorless or blue. It is usually massive to fibrous with rare pseudohexagonal orthorhombic crystals. The mineral is deliquescent (absorbs moisture from the surrounding…

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2V angle
70
Birefringence
0.0270
Category
Halide mineral
Cleavage
None
Color
Blue, colorless, yellow, white, red
Crystal class
Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m)

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Overview

Background

Composition

Structure

Physical properties

Geologic occurrence

Uses

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Map overview Semantic statistics

Carnallite

Nodes68
Edges67
Triples73
Avg. degree1.97
Density0.029412
Components1

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Carnallite

Top relations

related to Structure · 12
Carnallite → Cl, Face-sharing, H2O, In, KCl, KCl6, Mg, Pauling's, The, There, These, This
related to background · 10
Carnallite → Br, Cl, Halides, KCl, Mg2, Sylvite, The, These, They, This
related to Composition · 7
Carnallite → Carnallite's, H2O, Its, KCl, KMgCl3, MgCl2, Synthetic
related to Physical properties · 7
Carnallite → Carnallite's, Fe2O3, Field, Individual, Other, The, This
related to Geologic occurrence · 6
Carnallite → Closer, Evaporites, In, Mineral, The, This
related to Uses · 6
Carnallite → Both, It, Only, Russia's, Soluble, This
is a · 2
Carnallite → minor source of magnesium worldwide, uncommon double chloride mineral that only forms under specific environmental conditions in an evaporating sea or sedimentary basin
2V angle · 1
Carnallite → 70
Birefringence · 1
Carnallite → 0.0270
Category · 1
Carnallite → Halide mineral

Important terminology Word statistics

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Important terminology

potassium magnesium chloride sylvite mineral evaporite h2o also water kcl formula ions minerals evaporation basin deposits potash structure stassfurt germany

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Carnallite2V angle701.00infobox
CarnalliteBirefringence0.02701.00infobox
CarnalliteCategoryHalide mineral1.00infobox
CarnalliteCleavageNone1.00infobox
CarnalliteColorBlue, colorless, yellow, white, red1.00infobox
CarnalliteCrystal classDipyramidal (mmm) H-M symbol: (2/m 2/m 2/m)1.00infobox
CarnalliteCrystal habitFibrous1.00infobox
CarnalliteCrystal systemOrthorhombic1.00infobox
CarnalliteDensity1.598 g/cm31.00infobox
CarnalliteDiaphaneityTransparent to translucent1.00infobox
CarnalliteFormulaKCl.MgCl2·6(H2O)1.00infobox
CarnalliteFormula mass277.85 g/mol1.00infobox
CarnalliteFractureConchoidal1.00infobox
CarnalliteIMA symbolCna1.00infobox
CarnalliteLusterGreasy1.00infobox
CarnalliteMohs scale hardness2.51.00infobox
CarnalliteOptical propertiesBiaxial (+)1.00infobox
CarnalliteRefractive indexnα = 1.467 nβ = 1.476 nγ = 1.4941.00infobox
CarnalliteSpace groupPnna1.00infobox
CarnalliteSpecific gravity1.61.00infobox
CarnalliteStreakWhite1.00infobox
CarnalliteStrunz classification3.BA.101.00infobox
CarnalliteTwinningBy pressure, polysynthetic twin lamellae can be developed1.00infobox
Carnalliteis auncommon double chloride mineral that only forms under specific environmental conditions in an evaporating sea or sedimentary basin0.90text
Carnalliteis aminor source of magnesium worldwide0.90text

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