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mineralogie
elementen
Cr chromium
Cr - chromium - METAALACTINIDEN
Synthetisch
Radioactief
Vloeistof
Gasvormig

Elektronisch configuratiediagram
Namn | chromium |
Aantal | 24 |
Atomair | 51.9961 |
Symbool | Cr |
Fusie | 1857 |
Koken | 2482 |
Dichtheid | 7.15 |
Periode | 4 |
Groep | 6 |
Ontdekking | 1797 Vauquelin |
Overvloed | 102 |
Straal | 1.9 |
Elektronegativiteit | 1.66 |
Ionisatie | 6.7665 |
Aantal isotopen | 9 |
Elektronische configuratie | [Ar] 3d5 4s1 |
Oxidatie stelt | -2,-1,1,2,3,4,5,6 |
Elektron op energieniveau | 2,8,13,1 |
Mineralen | Hardheid | Dichtheid | Formule |
Andreyivanovite | FeCrP | ||
Ankangite | 6.50 / 6.50 | 4.44 | Ba(Ti,V3+,Cr)8O16 |
Ardennite-(V) | 6.00 / 7.00 | 3.55 | Mn2+4Al4(AlMg)(VO4)(SiO4)2(Si3O10)(OH)6 |
Barbertonite | 1.50 / 2.00 | 2.10 | Mg6Cr2(CO3)(OH)16·4H2O |
Batisivite | 7.00 / 7.00 | 4.62 | BaTi6(V,Cr)8Si2O29 |
Bentorite | 2.00 / 2.00 | 2.03 | Ca6Cr2(SO4)3(OH)12·26H2O |
Bouazzerite | 2.81 | Bi6(Mg,Co)11Fe14(AsO4)18O12(OH)4·86H2O | |
Bracewellite | 5.50 / 6.50 | 4.45 | CrO(OH) |
Brezinaite | 3.50 / 4.50 | 4.12 | Cr3S4 |
Bushmakinite | 3.00 / 3.50 | 6.22 | Pb2Al(PO4)(VO4)(OH) |
Carlosruizite | 2.50 / 3.00 | 3.42 | K3Na2Na3Mg5(IO3)6(SeO4)6·6H2O |
Carlsbergite | 7.00 / 7.00 | 5.90 | CrN |
Carmichaelite | 6.00 / 6.00 | 4.13 | (Ti,Cr,Fe)(O,OH)2 |
Cassedanneite | 3.50 / 3.50 | 6.00 | Pb5(VO4)2(CrO4)2·H2O |
Caswellsilverite | 1.00 / 2.00 | 3.21 | NaCrS2 |
Chromatite | 3.14 | CaCr6+O4 | |
Chrombismite | 3.00 / 3.50 | 9.80 | Bi16CrO27 |
Chromceladonite | 1.00 / 2.00 | 2.90 | KMgCrSi4O10(OH)2 |
Chromferide | 4.00 / 4.00 | 6.69 | Fe1.5Cr0.2 |
Chromio-pargasite | 6.00 / 6.00 | 3.12 | NaCa2(Mg4Cr)(Si6Al2)O22(OH)2 |
Chromite | 5.50 / 5.50 | 4.50 | Fe2+Cr2O4 |
Chromium | 7.50 / 7.50 | 7.20 | Cr |
Chromium-dravite | 7.00 / 7.50 | NaMg3Cr6(Si6O18)(BO3)3(OH)3OH | |
Chromo-alumino-povondraite | 7.50 / 7.50 | 3.23 | NaCr3(Al4Mg2)(Si6O18)(BO3)3(OH)3O |
Chromomphacite | (Ca,Na)(Mg,Cr,Al)Si2O6 | ||
Chromphyllite | 3.00 / 3.00 | 2.88 | KCr2(Si3Al)O10(OH)2 |
Chromschieffelinite | 2.00 / 2.00 | 5.89 | Pb10Te6+6O20(OH)14(CrO4)·5H2O |
Cochromite | 7.00 / 7.00 | 5.22 | CoCr2O4 |
Crichtonite | 5.00 / 6.00 | 4.46 | Sr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38 |
Crocoite | 2.50 / 3.00 | 5.90 | PbCrO4 |
Cronusite | 1.50 / 1.50 | 2.51 | Ca0.2CrS2·2H2O |
Cuprokalininite | 4.50 / 5.00 | 4.16 | CuCr2S4 |
Daubréelite | 4.50 / 5.00 | 3.81 | FeCr2S4 |
Davidite-(Ce) | 6.00 / 6.00 | 4.42 | Ce(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38 |
Davidite-(La) | 6.00 / 6.00 | 4.42 | La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38 |
Deanesmithite | 4.50 / 5.00 | 8.00 | Hg1+2Hg2+3S2OCrO4 |
Dessauite-(Y) | 6.50 / 7.00 | 4.68 | Sr(Y,U,Mn)Fe2(Ti,Fe,Cr,V)18(O,OH)38 |
Dietzeite | 3.50 / 3.50 | 3.62 | Ca2(IO3)2CrO4·H2O |
Dissakisite-(La) | 6.50 / 7.00 | 3.79 | CaLaMgAl2(Si2O7)(SiO4)O(OH) |
Dukeite | 3.00 / 4.00 | 7.17 | Bi3+24Cr6+8O57(OH)6·3H2O |
Edoylerite | 7.00 | Hg2+3(Cr6+O4)S2 | |
Embreyite | 3.50 / 3.50 | 6.45 | Pb5(CrO4)2(PO4)2·H2O |
Eskolaite | 8.00 / 8.50 | 5.18 | Cr2O3 |
Ferchromide | 6.50 / 6.50 | 6.00 | Cr1.5Fe0.2 |
Ferrohögbomite-2N2S | 6.00 / 7.00 | (Fe,Mg,Zn,Al)3(Al,Ti,Fe)8O15(OH) | |
Florensovite | 5.00 / 5.00 | 4.00 | Cu1+(Cr3+1.5Sb5+0.5)S4 |
Fornacite | 2.00 / 3.00 | 6.27 | CuPb2(CrO4)(AsO4)(OH) |
George-ericksenite | 3.00 / 4.00 | 3.04 | Na6CaMg(IO3)6(CrO4)2·12H2O |
Georgerobinsonite | Pb4(CrO4)2(OH)2FCl | ||
Grimaldiite | 3.50 / 4.50 | 4.11 | CrO(OH) |
Guyanaite | 4.53 | CrO(OH) | |
Hapkeite | Fe2Si | ||
Hashemite | 3.50 / 3.50 | 4.59 | BaCr6+O4 |
Hawthorneite | 6.00 / 6.50 | 5.00 | BaMgTi3Cr4Fe2+2Fe3+2O19 |
Heideite | 3.50 / 4.50 | 4.10 | (Fe,Cr)1.15(Ti,Fe)2S4 |
Hemihedrite | 3.00 / 3.00 | 6.42 | Pb10Zn(CrO4)6(SiO4)2F2 |
Iquiqueite | 2.00 / 2.00 | 2.05 | K3Na4Mg(CrO4)B24O39(OH)·12H2O |
Iranite | 3.00 / 3.00 | 5.80 | Pb10Cu(CrO4)6(SiO4)2(OH)2 |
Isovite | 8.00 / 8.00 | 7.40 | (Cr,Fe)23C6 |
Joegoldsteinite | 3.71 | MnCr2S4 | |
Kalininite | 5.00 / 5.00 | ZnCr2S4 | |
Kassite | 5.00 / 5.00 | 3.42 | CaTi2O4(OH)2 |
Keilite | FeS | ||
Khristovite-(Ce) | 5.00 / 5.00 | 4.05 | CaCeMgMn2+Al(Si2O7)(SiO4)(OH)F |
Knorringite | 6.00 / 7.00 | 3.76 | Mg3Cr2(SiO4)3 |
Kosmochlor | 6.00 / 7.00 | 3.60 | NaCrSi2O6 |
Krinovite | 6.00 / 7.00 | 3.38 | Na4(Mg8Cr3+4)O4[Si12O36] |
Lakargiite | 8.00 / 8.50 | 4.59 | CaZrO3 |
Lindsleyite | 7.50 / 7.50 | 4.63 | (Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38 |
Lópezite | 2.50 / 2.50 | 2.69 | K2Cr2O7 |
Loveringite | 7.50 / 7.50 | 4.41 | (Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38 |
Macquartite | 3.50 / 3.50 | 5.49 | Cu2Pb7(CrO4)4(SiO4)2(OH)2 |
Magnesiochromite | 5.50 / 5.50 | 4.20 | MgCr3+2O4 |
Magnesiosadanagaite | 5.50 / 6.00 | 3.00 | NaCa2[Mg3(Fe3+,Al)2](Si5Al3)O22(OH)2 |
Manganochromite | 5.50 / 5.50 | 4.86 | Mn2+Cr2O4 |
Mapiquiroite | 6.00 / 6.00 | (Sr,Pb)(U,Y)Fe2(Ti,Fe3+,Cr3+)18O38 | |
Mariinskite | 8.50 / 8.50 | 4.25 | BeCr2O4 |
Mathiasite | 7.50 / 7.50 | 4.60 | (K,Ba,Sr)(Zr,Fe)(Mg,Fe)2(Ti,Cr,Fe)18O38 |
Mcconnellite | 5.50 / 5.50 | 5.49 | Cu1+CrO2 |
Molybdofornacite | 2.00 / 3.00 | 6.60 | CuPb2MoO4AsO4(OH) |
Mongshanite | 5.00 / 6.00 | (Mg,Cr,Fe,Ca,K)2(Ti,Zr,Cr,Fe)5O12 | |
Mountkeithite | 2.00 / 2.00 | 2.12 | Mg11Fe3+3(SO4)3.5(OH)24·11H2O |
Murchisite | 4.22 | Cr5S6 | |
Natalyite | 7.00 / 7.00 | 3.55 | NaV3+Si2O6 |
Nichromite | 6.00 / 6.50 | 5.24 | NiCr2O4 |
Olkhonskite | 8.00 / 8.00 | 4.48 | Cr2Ti3O9 |
Oxy-chromium-dravite | 7.50 / 7.50 | 3.30 | NaCr3(Cr4Mg2)(Si6O18)(BO3)3(OH)3O |
Painite | 8.00 / 8.00 | 4.00 | CaZrAl9O15(BO3) |
Petterdite | 2.00 / 2.00 | 3.97 | PbCr2(CO3)2(OH)4·H2O |
Phoenicochroite | 2.50 / 2.50 | 7.01 | Pb2O(CrO4) |
Polyakovite-(Ce) | 5.50 / 6.00 | 4.75 | (Ce,Ca)4MgCr2(Ti,Nb)2Si4O22 |
Putnisite | 1.00 / 2.00 | 2.23 | SrCa4Cr3+8(CO3)8SO4(OH)16·25H2O |
Qusongite | 9.50 / 9.50 | 15.84 | WC |
Redingtonite | 2.00 / 2.00 | 1.76 | Fe2+Cr2(SO4)4·22H2O |
Redledgeite | 6.00 / 7.00 | 3.72 | Ba(Ti4+6Cr3+2)O16 |
Reynoldsite | 4.50 / 4.50 | 6.57 | Pb2Mn4+2O5(CrO4) |
Rilandite | 2.00 / 3.00 | Cr3+6SiO11·5H2O(?) | |
Santanaite | 4.00 / 4.00 | 9.16 | Pb11CrO16 |
Schöllhornite | 1.50 / 2.00 | 2.70 | Na0.3CrS2·H2O |