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Antigorite

Antigorite is a lamellated, monoclinic mineral in the phyllosilicate serpentine subgroup with the ideal chemical formula of (Mg,Fe2+)3Si2O5(OH)4. It is the high-pressure polymorph of serpentine and is commonly found in metamorphosed serpentinites. Antigorite, and its serpentine polymorphs, play an important role in subduction zone dynamics due to their…

Regions, Geologic occurrences & Physical properties

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Geologic occurrences

TectonicTexturesMagnetiteChloriteCarbonates
5 related topics

Physical properties

LustreCleavageMylonitesMicronsBowenite
8 related topics

Crystal structure

LizarditeChrysotilePolysomesWavelength
4 related topics

Overview

MonoclinicMineralPhyllosilicateSerpentine subgroupPolymorph
10 related topics

Key facts & relationships

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Birefringence
δ = 0.005–0.006
Category
Phyllosilicate minerals
Cleavage
(001) Perfect
Color
Green, yellowish-green, blueish-gray
Crystal habit
Massive or platy
Crystal system
Monoclinic

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Overview

Geologic occurrences

Physical properties

Crystal structure

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Map overview Semantic statistics

Antigorite

Nodes32
Edges31
Triples50
Avg. degree1.94
Density0.0625
Components1

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Antigorite

Top relations

related to Gemstone properties · 16
Antigorite → Bowen, Bowenite, First Lady Mrs, George, It, Lady Bird Johnson, Maryland, Maryland-Pennsylvania, Oddly, Our Mineral Heritage Brooch, Pennsylvania, Rhode Island, Somewhat, The, United States, Williamsite
related to Crystal structure · 7
Antigorite → Although, Antigorite's, Pm, Polysomes, SiO4, The, Their
related to Physical properties · 5
Antigorite → It, Lamellated, Mohs, Serpentinite, The
related to Geologic occurrences · 4
Antigorite → Earth's, Olivine, Serpentines, Serpentinites
Birefringence · 1
Antigorite → δ = 0.005–0.006
Category · 1
Antigorite → Phyllosilicate minerals
Cleavage · 1
Antigorite → (001) Perfect
Color · 1
Antigorite → Green, yellowish-green, blueish-gray
Crystal habit · 1
Antigorite → Massive or platy
Crystal system · 1
Antigorite → Monoclinic

Important terminology Word statistics

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Important terminology

serpentine commonly serpentinite mineral monoclinic often williamsite found crystals subgroup serpentinites subduction cleavage phyllosilicate tetrahedra region magnetite bowenite structure gemstone

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
AntigoriteBirefringenceδ = 0.005–0.0061.00infobox
AntigoriteCategoryPhyllosilicate minerals1.00infobox
AntigoriteCleavage(001) Perfect1.00infobox
AntigoriteColorGreen, yellowish-green, blueish-gray1.00infobox
AntigoriteCrystal habitMassive or platy1.00infobox
AntigoriteCrystal systemMonoclinic1.00infobox
AntigoriteFormula(Mg, Fe)3Si2O5OH41.00infobox
AntigoriteFractureBrittle1.00infobox
AntigoriteGroupKaolinite-Serpentine group, serpentine subgroup1.00infobox
AntigoriteIMA symbolAtg1.00infobox
AntigoriteLusterVitreous to greasy1.00infobox
AntigoriteMohs scale hardness3.5–41.00infobox
AntigoriteOptical propertiesBiaxial (−)1.00infobox
AntigoriteRefractive index1.53–1.5751.00infobox
AntigoriteSpecific gravity2.5–2.61.00infobox
AntigoriteStreakGreenish white1.00infobox
AntigoriteStrunz classification9.ED.151.00infobox
Antigoriteis alamellated0.90text

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