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Triphylite

Triphylite is a lithium iron(II) phosphate mineral with the chemical formula LiFePO4. It is a member of the triphylite group and forms a complete solid solution series with the lithium manganese(II) phosphate, lithiophilite. Triphylite crystallizes in the orthorhombic crystal system. It rarely forms prismatic crystals and is more frequently found in…

History, Etymology and history & Properties

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Birefringence
δ = 0.0060–0.0080
Category
Phosphate minerals
Cleavage
{100} perfect, {010} imperfect, {011} poor
Color
Green–blue gray, brown–black
Crystal class
Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m)
Crystal habit
Massive, granular, prismatic

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Etymology and history

Properties

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Map overview Semantic statistics

Triphylite

Nodes19
Edges18
Triples37
Avg. degree1.89
Density0.105263
Components1

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Triphylite

Top relations

related to history · 10
Triphylite → Bavarian Forest, Fe2, Fuchs, German, Greek, Hennenkobel Mine, Johann Nepomuk, Li, Mn2, The
related to Properties · 5
Triphylite → FePO4, LiMnPO4, Over, The, Under
related to Crystal structure · 2
Triphylite → Likewise, The
Birefringence · 1
Triphylite → δ = 0.0060–0.0080
Category · 1
Triphylite → Phosphate minerals
Cleavage · 1
Triphylite → {100} perfect, {010} imperfect, {011} poor
Color · 1
Triphylite → Green–blue gray, brown–black
Crystal class · 1
Triphylite → Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m)
Crystal habit · 1
Triphylite → Massive, granular, prismatic
Crystal system · 1
Triphylite → Orthorhombic

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Important terminology

phosphate crystal lithium forms orthorhombic system iron mineral series ii formula lifepo4 group prismatic color brown black lithiophilite alteration properties

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
TriphyliteBirefringenceδ = 0.0060–0.00801.00infobox
TriphyliteCategoryPhosphate minerals1.00infobox
TriphyliteCleavage{100} perfect, {010} imperfect, {011} poor1.00infobox
TriphyliteColorGreen–blue gray, brown–black1.00infobox
TriphyliteCrystal classDipyramidal (mmm) H-M symbol: (2/m 2/m 2/m)1.00infobox
TriphyliteCrystal habitMassive, granular, prismatic1.00infobox
TriphyliteCrystal systemOrthorhombic1.00infobox
TriphyliteDiaphaneityTransparent–translucent1.00infobox
TriphyliteFormulaLiFePO41.00infobox
TriphyliteFractureUneven–subconchoidal1.00infobox
TriphyliteIMA symbolTrp1.00infobox
TriphyliteLusterVitreous–subresinous1.00infobox
TriphyliteMohs scale hardness4–51.00infobox
TriphyliteOptical propertiesBiaxial (+), 2V = 0°–65°1.00infobox
TriphyliteRefractive indexnα=1.675–1.694, nβ=1.684–1.695, nγ=1.685–1.7001.00infobox
TriphyliteSpace groupPmnb1.00infobox
TriphyliteStreakWhite–grayish white1.00infobox
TriphyliteStrunz classification8.AB.101.00infobox
TriphyliteUnit cella = 6.0285(6) Å, b = 10.3586(9) Å, c = 4.7031(3) Å, Z = 41.00infobox
Triphyliteis alithium iron0.90text

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