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Spodumene

Spodumene is a pyroxene mineral consisting of lithium aluminium inosilicate, LiAl(SiO3)2, and is a commercially important source of lithium. It occurs as colorless to yellowish, purplish, or lilac kunzite (see below), or alternatively yellowish-green or emerald-green hiddenite; it takes the form of prismatic crystals, often of great size. Single crystals…

Economy, Economic importance & Discovery and occurrence

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2V angle
54° to 69°
Birefringence
δ = 0.014–0.018
Category
Inosilicate minerals (single chain)
Cleavage
Perfect prismatic, two directions {110} ∧ {110} at 87°
Color
Highly variable: white, colorless, gray, pink, lilac, violet, yellow and green, may be bicolored; emerald green – hiddenite; lilac – kunzite; yellow – triphane
Crystal class
Prismatic (2/m) (same H-M symbol)

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Overview

Discovery and occurrence

Economic importance

Refining

Gemstone varieties

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Map overview Semantic statistics

Spodumene

Nodes95
Edges94
Triples85
Avg. degree1.98
Density0.021053
Components1

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Spodumene

Top relations

related to Kunzite · 14
Spodumene → Afghanistan, Brazil, Canada, CIS, Co's, Exposure, George Frederick Kunz, It, Kunzite, Mexico, Pakistan, Sweden, Tiffany, Western Australia
related to Discovery and occurrence · 11
Spodumene → Andrada, Associated, Brazilian, Greek, It, Jose Bonifacio, Silva, Sweden, Södermanland, The, Utö
related to Hiddenite · 9
Spodumene → Alexander County, February, Hiddenite, It, June, North Carolina, Some, This, William Earl Hidden
related to Economic importance · 8
Spodumene → As, However, In, January, Lithium, Pyroceram, September, The
related to External links · 8
Spodumene → Encyclopædia Britannica, Frederick William, Kunzite, New International Encyclopedia, Rudler, Texts, Wikisource, Wiktionary-logo-en-v2
related to Refining · 5
Spodumene → Extraction, SC6, Suitable, These, Traditional
2V angle · 1
Spodumene → 54° to 69°
Birefringence · 1
Spodumene → δ = 0.014–0.018
Category · 1
Spodumene → Inosilicate minerals (single chain)
Cleavage · 1
Spodumene → Perfect prismatic, two directions {110} ∧ {110} at 87°

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Important terminology

lithium kunzite hiddenite australia size crystals minerals crystal mineral mining reagents ed source form often β-spodumene refining see color colorless

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Spodumene2V angle54° to 69°1.00infobox
SpodumeneBirefringenceδ = 0.014–0.0181.00infobox
SpodumeneCategoryInosilicate minerals (single chain)1.00infobox
SpodumeneCleavagePerfect prismatic, two directions {110} ∧ {110} at 87°1.00infobox
SpodumeneColorHighly variable: white, colorless, gray, pink, lilac, violet, yellow and green, may be bicolored; emerald green – hiddenite; lilac – kunzite; yellow – triphane1.00infobox
SpodumeneCrystal classPrismatic (2/m) (same H-M symbol)1.00infobox
SpodumeneCrystal habitprismatic, generally flattened and elongated, striated parallel to {100}, commonly massive1.00infobox
SpodumeneCrystal systemMonoclinic1.00infobox
SpodumeneDana classification65.1.4.11.00infobox
SpodumeneFormulalithium aluminium silicate, LiAl(SiO3)21.00infobox
SpodumeneFractureUneven to subconchoidal1.00infobox
SpodumeneFusibility3.51.00infobox
SpodumeneGroupPyroxene group, clinopyroxene subgroup1.00infobox
SpodumeneIMA symbolSpd1.00infobox
SpodumeneLusterVitreous, pearly on cleavage1.00infobox
SpodumeneMohs scale hardness6.5–71.00infobox
SpodumeneOptical propertiesBiaxial (+)1.00infobox
SpodumeneOther characteristicsTenebrescence, chatoyancy1.00infobox
SpodumenePleochroismStrong in kunzite: α-purple, γ-colorless; hiddenite: α-green, γ-colorless1.00infobox
SpodumeneRefractive indexnα = 1.648–1.661 nβ = 1.655–1.670 nγ = 1.662–1.6791.00infobox
SpodumeneSolubilityinsoluble1.00infobox
SpodumeneSpace groupC2/c1.00infobox
SpodumeneSpecific gravity3.03–3.231.00infobox
SpodumeneStreakwhite1.00infobox
SpodumeneStrunz classification9.DA.301.00infobox
SpodumeneTenacityBrittle1.00infobox
SpodumeneTwinningCommon on {100}1.00infobox
SpodumeneUnit cella = 9.46 Å, b = 8.39 Å c = 5.22 Å β = 110.17°; Z = 41.00infobox
Spodumeneis apyroxene mineral consisting of lithium aluminium inosilicate0.90text

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