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Hübnerite

Hübnerite or hubnerite is a mineral consisting of manganese tungsten oxide (chemical formula MnWO4). It is the manganese endmember of the manganese–iron wolframite solid solution series. It forms reddish brown to black monoclinic prismatic submetallic crystals. The crystals are typically flattened and occur with fine striations. It has a high specific…

Overview, Geological occurrence & Structure

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Overview

29 related topics

Geological occurrence

5 related topics

Structure

4 related topics

Composition

1 related topics

Key facts & relationships

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2V angle
73° measured
Birefringence
0.1200–0.1300
Category
Oxide minerals
Cleavage
Perfect on {010}
Color
Yellowish brown to reddish brown, blackish brown, black; Deep red internal reflections in reflected light
Crystal class
Prismatic (2/m) (same H-M symbol)

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Overview

Introduction

Composition

Structure

Geological occurrence

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Map overview Semantic statistics

Hübnerite

Nodes46
Edges45
Triples68
Avg. degree1.96
Density0.043478
Components1

How this topic connects Entity context

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Hübnerite

Top relations

related to Structure · 11
Hübnerite → Fe, Fe2, In, It, Mn, Mn2, O6, Short, The, WO3, WO4
related to Composition · 10
Hübnerite → Fe, FeWO4, MgWO4, Mn, MnWO4, Since, The, There, These, WO4
related to Physical properties · 7
Hübnerite → All, Color, Crystal, In, It, On, The
related to history · 5
Hübnerite → Adolph Hübner, Breithaupt, Riotte, The, Tungsten
related to Introduction · 2
Hübnerite → It, The
2V angle · 1
Hübnerite → 73° measured
Birefringence · 1
Hübnerite → 0.1200–0.1300
Category · 1
Hübnerite → Oxide minerals
Cleavage · 1
Hübnerite → Perfect on {010}
Color · 1
Hübnerite → Yellowish brown to reddish brown, blackish brown, black; Deep red internal reflections in reflected light

Important terminology Word statistics

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Important terminology

wolframite minerals crystals mineral family manganese cleavage reddish brown structure occurrence crystal color specific gravity perfect monoclinic tungsten prismatic formula

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Hübnerite2V angle73° measured1.00infobox
HübneriteBirefringence0.1200–0.13001.00infobox
HübneriteCategoryOxide minerals1.00infobox
HübneriteCleavagePerfect on {010}1.00infobox
HübneriteColorYellowish brown to reddish brown, blackish brown, black; Deep red internal reflections in reflected light1.00infobox
HübneriteCrystal classPrismatic (2/m) (same H-M symbol)1.00infobox
HübneriteCrystal habitPrismatic striated crystals, tabular to flattened, in radiating groups1.00infobox
HübneriteCrystal systemMonoclinic1.00infobox
HübneriteDiaphaneityTransparent to translucent1.00infobox
HübneriteFormula.mw-parser-output .template-chem2-su{display:inline-block;font-size:80%;line-height:1;vertical-align:-0.35em}.mw-parser-output .template-chem2-su>span{display:block;text-align:l…1.00infobox
HübneriteFractureIrregular/uneven1.00infobox
HübneriteIMA symbolHbr1.00infobox
HübneriteLusterMetallic to adamantine towards resinous.1.00infobox
HübneriteMohs scale hardness4–.mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .…1.00infobox
HübneriteOptical propertiesBiaxial (+)1.00infobox
HübneritePleochroismPerceptible; X = yellow to green, red-orange; Y = yellowish brown to greenish yellow, red-orange to red; Z = green; brick-red to red1.00infobox
HübneriteRefractive indexnα=2.17–2.2, nβ=2.22, nγ=2.3–2.321.00infobox
HübneriteSpace groupP21/c1.00infobox
HübneriteSpecific gravity7.12–7.181.00infobox
HübneriteStreakYellow to reddish brown, greenish gray1.00infobox
HübneriteStrunz classification4.DB.301.00infobox
HübneriteTenacityBrittle1.00infobox
HübneriteTwinningContact twins1.00infobox
HübneriteUnit cella = 4.86, b = 5.78 c = 5.02 [Å]; β = 90.816°, Z = 41.00infobox
Hübneriteis asynonym of the original name0.90text

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