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Mirabilite

Mirabilite, also known as Glauber's salt, is a hydrous sodium sulfate mineral with the chemical formula Na2SO4·10H2O. It is a vitreous, colorless to white monoclinic mineral that forms as an evaporite from sodium sulfate-bearing brines. It is found around saline springs and along saline playa lakes. Associated minerals include gypsum, halite, thenardite…

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Birefringence
δ = 0.023
Category
Sulfate minerals
Cleavage
{100} perfect, {001} poor, {010} poor
Color
Colorless, white, yellowish-white, greenish-white
Crystal class
Prismatic (2/m) (same H-M symbol)
Crystal habit
Granular or well-formed coarse crystals

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Mirabilite

Nodes25
Edges24
Triples27
Avg. degree1.92
Density0.08
Components1

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Mirabilite

Top relations

related to External links · 4
Mirabilite → Aral Sea, Archived, Maricopa, Wayback MachineAmerican Mineralogist
Birefringence · 1
Mirabilite → δ = 0.023
Category · 1
Mirabilite → Sulfate minerals
Cleavage · 1
Mirabilite → {100} perfect, {001} poor, {010} poor
Color · 1
Mirabilite → Colorless, white, yellowish-white, greenish-white
Crystal class · 1
Mirabilite → Prismatic (2/m) (same H-M symbol)
Crystal habit · 1
Mirabilite → Granular or well-formed coarse crystals
Crystal system · 1
Mirabilite → Monoclinic
Diaphaneity · 1
Mirabilite → Transparent to translucent to opaque
Formula · 1
Mirabilite → Na2SO4·10H2O

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Important terminology

salt thenardite also na2so4 white mineral utah monoclinic sodium found springs along air used documented lake sulfate formula 10h2o vitreous

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
MirabiliteBirefringenceδ = 0.0231.00infobox
MirabiliteCategorySulfate minerals1.00infobox
MirabiliteCleavage{100} perfect, {001} poor, {010} poor1.00infobox
MirabiliteColorColorless, white, yellowish-white, greenish-white1.00infobox
MirabiliteCrystal classPrismatic (2/m) (same H-M symbol)1.00infobox
MirabiliteCrystal habitGranular or well-formed coarse crystals1.00infobox
MirabiliteCrystal systemMonoclinic1.00infobox
MirabiliteDiaphaneityTransparent to translucent to opaque1.00infobox
MirabiliteFormulaNa2SO4·10H2O1.00infobox
MirabiliteFormula mass322.9 g/mol1.00infobox
MirabiliteFractureConchoidal1.00infobox
MirabiliteIMA symbolMrb1.00infobox
MirabiliteLusterVitreous1.00infobox
MirabiliteMohs scale hardness1.5–21.00infobox
MirabiliteOptical propertiesBiaxial (–), 2V=75.93°1.00infobox
MirabiliteOther characteristicsNot radioactive, non-fluorescent1.00infobox
MirabilitePleochroismnone1.00infobox
MirabiliteRefractive indexnα = 1.396, nβ = 1.4103, nγ = 1.4191.00infobox
MirabiliteSpace groupP21/c1.00infobox
MirabiliteSpecific gravity1.491.00infobox
MirabiliteStreakWhite1.00infobox
MirabiliteStrunz classification7.CD.101.00infobox
MirabiliteTwinningInterpenetration twinning on {001}; also on {100}1.00infobox

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