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Molybdenite

Molybdenite is a mineral of molybdenum disulfide, MoS2. Similar in appearance and feel to graphite, molybdenite has a lubricating effect that is a consequence of its layered structure. The atomic structure consists of a sheet of molybdenum atoms sandwiched between sheets of sulfur atoms. The Mo-S bonds are strong, but the interaction between the sulfur…

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Category
Sulfide mineral
Cleavage
Perfect on
Color
Black, lead-silvery gray
Crystal class
2H polytype: dihexagonal dipyramidal (6/mmm) 3R polytype: Ditrigonal pyramidal (3m)
Crystal habit
Thin, platy hexagonal crystals terminated by pinacoidal faces, also as tapering six-sided pyramids that can be truncated by the pinacoids. Also massive, lamellar and in small gr…
Crystal system
Common, 2H polytype: hexagonal 3R polytype: trigonal

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Molybdenite

Nodes47
Edges46
Triples48
Avg. degree1.96
Density0.042553
Components1

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Molybdenite

Top relations

related to Occurrence · 13
Molybdenite → Arizona, Climax, Colorado, Henderson, High, Important, Its, Mexico, New Mexico, Questa, The, Utah, X-ray
related to Uses · 5
Molybdenite → By, Earth's, Ferromolybdenum, Reduction, While
related to Semiconductor · 4
Molybdenite → In, Monolayer, Multilayer, The
related to External links · 3
Molybdenite → Media, Wikimedia Commons, Wiktionary-logo-en-v2
related to Features · 2
Molybdenite → It, Its
Category · 1
Molybdenite → Sulfide mineral
Cleavage · 1
Molybdenite → Perfect on
Color · 1
Molybdenite → Black, lead-silvery gray
Crystal class · 1
Molybdenite → 2H polytype: dihexagonal dipyramidal (6/mmm) 3R polytype: Ditrigonal pyramidal (3m)
Crystal habit · 1
Molybdenite → Thin, platy hexagonal crystals terminated by pinacoidal faces, also as tapering six-sided pyramids that can be truncated by the pinacoids. Also massive, lamellar and in small gr…

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Important terminology

molybdenum also common graphite rhenium sulfur crystal ore trigonal sulfide structure atoms molybdate mineral hexagonal polytype euhedral flakes disulfide mos2

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
MolybdeniteCategorySulfide mineral1.00infobox
MolybdeniteCleavagePerfect on1.00infobox
MolybdeniteColorBlack, lead-silvery gray1.00infobox
MolybdeniteCrystal class2H polytype: dihexagonal dipyramidal (6/mmm) 3R polytype: Ditrigonal pyramidal (3m)1.00infobox
MolybdeniteCrystal habitThin, platy hexagonal crystals terminated by pinacoidal faces, also as tapering six-sided pyramids that can be truncated by the pinacoids. Also massive, lamellar and in small gr…1.00infobox
MolybdeniteCrystal systemCommon, 2H polytype: hexagonal 3R polytype: trigonal1.00infobox
MolybdeniteDiaphaneityNearly opaque; translucent in thin flakes1.00infobox
MolybdeniteFormulaMolybdenum disulfide (MoS2)1.00infobox
MolybdeniteFusibilityInfusible (decomposes at 1185 °C)1.00infobox
MolybdeniteIMA symbolMol1.00infobox
MolybdeniteLusterMetallic1.00infobox
MolybdeniteMohs scale hardness1–1.51.00infobox
MolybdeniteOther characteristicsIt has a greasy feel and leaves marks on fingers1.00infobox
MolybdenitePleochroismVery strong1.00infobox
MolybdeniteSpace group2H polytype: P63/mmc 3R polytype: R3m1.00infobox
MolybdeniteSpecific gravity4.731.00infobox
MolybdeniteStreakBluish gray1.00infobox
MolybdeniteStrunz classification2.EA.301.00infobox
MolybdeniteTenacityLamellae flexible, not elastic1.00infobox
MolybdeniteUnit cell2H polytype: a = 3.16 Å, c = 12.3 Å; Z = 2 3R polytype: a = 3.16 Å, c = 18.33 Å; Z = 31.00infobox
Molybdeniteis amineral of molybdenum disulfide0.90text

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