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Zincochromite

A valid IMA mineral species
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About ZincochromiteHide

Formula:
ZnCr2O4
Colour:
Brown, brownish-grey in reflected light
Lustre:
Sub-Metallic
Hardness:
5½ - 6
Specific Gravity:
5.434 (Calculated)
Crystal System:
Isometric
Name:
Named as the zinc analogue of Chromite.
Spinel Group. The zinc analogue of Chromite.


Unique IdentifiersHide

Mindat ID:
4412
Long-form identifier:
mindat:1:1:4412:3
GUID
(UUID V4):
6c3cecf9-51a4-4035-a9e0-238c3249d957

IMA Classification of ZincochromiteHide

Classification of ZincochromiteHide

4.BB.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
B : Metal: Oxygen = 3:4 and similar
B : With only medium-sized cations
7.2.3.6

7 : MULTIPLE OXIDES
2 : AB2X4
7.14.10

7 : Oxides and Hydroxides
14 : Oxides of Cr

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
ZchrIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of ZincochromiteHide

Sub-Metallic
Transparency:
Opaque
Colour:
Brown, brownish-grey in reflected light
Hardness:
5½ - 6 on Mohs scale
Hardness:
VHN100=620 - Vickers
Density:
5.434 g/cm3 (Calculated)

Optical Data of ZincochromiteHide

Type:
Isotropic
Colour in reflected light:
brownish gray
Internal Reflections:
brown - rare

Chemistry of ZincochromiteHide

Mindat Formula:
ZnCr2O4

Crystallography of ZincochromiteHide

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fd3m
Setting:
Fd3m
Cell Parameters:
a = 8.3271(2) Å
Unit Cell V:
577.41 ų (Calculated from Unit Cell)
Z:
8

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0003801ZincochromiteLevy D, Diella V, Pavese A, Dapiaggi M, Sani A (2005) P-V equation of state, thermal expansion, and P-T stability of synthetic zincochromite (ZnCr2O4 spinel) American Mineralogist 90 1157-116220050293
0003802ZincochromiteLevy D, Diella V, Pavese A, Dapiaggi M, Sani A (2005) P-V equation of state, thermal expansion, and P-T stability of synthetic zincochromite (ZnCr2O4 spinel) American Mineralogist 90 1157-116220050293
0003803ZincochromiteLevy D, Diella V, Pavese A, Dapiaggi M, Sani A (2005) P-V equation of state, thermal expansion, and P-T stability of synthetic zincochromite (ZnCr2O4 spinel) American Mineralogist 90 1157-116220050293
0003804ZincochromiteLevy D, Diella V, Pavese A, Dapiaggi M, Sani A (2005) P-V equation of state, thermal expansion, and P-T stability of synthetic zincochromite (ZnCr2O4 spinel) American Mineralogist 90 1157-116220050293
0003805ZincochromiteLevy D, Diella V, Pavese A, Dapiaggi M, Sani A (2005) P-V equation of state, thermal expansion, and P-T stability of synthetic zincochromite (ZnCr2O4 spinel) American Mineralogist 90 1157-116220050293
0003806ZincochromiteLevy D, Diella V, Pavese A, Dapiaggi M, Sani A (2005) P-V equation of state, thermal expansion, and P-T stability of synthetic zincochromite (ZnCr2O4 spinel) American Mineralogist 90 1157-116220050293
0003807ZincochromiteLevy D, Diella V, Pavese A, Dapiaggi M, Sani A (2005) P-V equation of state, thermal expansion, and P-T stability of synthetic zincochromite (ZnCr2O4 spinel) American Mineralogist 90 1157-116220050293
0003808ZincochromiteLevy D, Diella V, Pavese A, Dapiaggi M, Sani A (2005) P-V equation of state, thermal expansion, and P-T stability of synthetic zincochromite (ZnCr2O4 spinel) American Mineralogist 90 1157-116220050293
0003809ZincochromiteLevy D, Diella V, Pavese A, Dapiaggi M, Sani A (2005) P-V equation of state, thermal expansion, and P-T stability of synthetic zincochromite (ZnCr2O4 spinel) American Mineralogist 90 1157-116220050293
0003810ZincochromiteLevy D, Diella V, Pavese A, Dapiaggi M, Sani A (2005) P-V equation of state, thermal expansion, and P-T stability of synthetic zincochromite (ZnCr2O4 spinel) American Mineralogist 90 1157-116220050293
0003811ZincochromiteLevy D, Diella V, Pavese A, Dapiaggi M, Sani A (2005) P-V equation of state, thermal expansion, and P-T stability of synthetic zincochromite (ZnCr2O4 spinel) American Mineralogist 90 1157-116220050293
0007765ZincochromiteO'Neill H St C, Dollase W A (1994) Crystal structures and cation distributions in simple spinels from powder XRD structural refinements: MgCr2O4, ZnCr2O4, Fe3O4 and the temperature dependence of the cation distribution in ZnAl2O4 Physics and Chemistry of Minerals 20 541-55519940293
0007770ZincochromiteO'Neill H St C, Dollase W A (1994) Crystal structures and cation distributions in simple spinels from powder XRD structural refinements: MgCr2O4, ZnCr2O4, Fe3O4 and the temperature dependence of the cation distribution in ZnAl2O4 Physics and Chemistry of Minerals 20 541-55519940293
0007775ZincochromiteO'Neill H St C, Dollase W A (1994) Crystal structures and cation distributions in simple spinels from powder XRD structural refinements: MgCr2O4, ZnCr2O4, Fe3O4 and the temperature dependence of the cation distribution in ZnAl2O4 Physics and Chemistry of Minerals 20 541-55519940293
0007780ZincochromiteO'Neill H St C, Dollase W A (1994) Crystal structures and cation distributions in simple spinels from powder XRD structural refinements: MgCr2O4, ZnCr2O4, Fe3O4 and the temperature dependence of the cation distribution in ZnAl2O4 Physics and Chemistry of Minerals 20 541-55519940293
0007802ZincochromiteO'Neill H St C, Dollase W A (1994) Crystal structures and cation distributions in simple spinels from powder XRD structural refinements: MgCr2O4, ZnCr2O4, Fe3O4 and the temperature dependence of the cation distribution in ZnAl2O4 Physics and Chemistry of Minerals 20 541-55519940293
0007816ZincochromiteO'Neill H St C, Dollase W A (1994) Crystal structures and cation distributions in simple spinels from powder XRD structural refinements: MgCr2O4, ZnCr2O4, Fe3O4 and the temperature dependence of the cation distribution in ZnAl2O4 Physics and Chemistry of Minerals 20 541-55519940293
0007823ZincochromiteO'Neill H St C, Dollase W A (1994) Crystal structures and cation distributions in simple spinels from powder XRD structural refinements: MgCr2O4, ZnCr2O4, Fe3O4 and the temperature dependence of the cation distribution in ZnAl2O4 Physics and Chemistry of Minerals 20 541-55519940293
0007828ZincochromiteO'Neill H St C, Dollase W A (1994) Crystal structures and cation distributions in simple spinels from powder XRD structural refinements: MgCr2O4, ZnCr2O4, Fe3O4 and the temperature dependence of the cation distribution in ZnAl2O4 Physics and Chemistry of Minerals 20 541-55519940293
0007833ZincochromiteO'Neill H St C, Dollase W A (1994) Crystal structures and cation distributions in simple spinels from powder XRD structural refinements: MgCr2O4, ZnCr2O4, Fe3O4 and the temperature dependence of the cation distribution in ZnAl2O4 Physics and Chemistry of Minerals 20 541-55519940293
0007846ZincochromiteO'Neill H St C, Dollase W A (1994) Crystal structures and cation distributions in simple spinels from powder XRD structural refinements: MgCr2O4, ZnCr2O4, Fe3O4 and the temperature dependence of the cation distribution in ZnAl2O4 Physics and Chemistry of Minerals 20 541-55519940293
0018130ZincochromitePasserini L (1930) Ricerche sugli Spinelle.- II. I composti. Cu Al2 O4, Mg Al2 O4, Mg Fe2 O4, Zn Al2 O4, Zn Cr2 O4, Zn Fe2 O4, Mn Fe2 O4 _cod_database_code 1011278 Gazzetta Chimica Italiana 60 389-39919300293
0012909ZincochromiteRaccah P M, Bouchard R J, Wold A (1966) Locality: synthetic Crystallographic study of chromium spinels Journal of Applied Physics 37 1436-143719660293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.519 Å(100)
2.954 Å(50)
1.476 Å(35)
1.607 Å(30)
2.088 Å(25)
4.822 Å(15)
1.705 Å(15)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 3a: Earth’s earliest Hadean crust>4.50
8 : Mafic igneous rocks
Near-surface Processes
26 : Hadean detrital minerals
High-𝑇 alteration and/or metamorphism
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits
Stage 4b: Highly evolved igneous rocks>3.0
37 : Layered igneous intrusions and related PGE minerals
Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere<0.6
51 : Pyrometamorphic minerals (see also #54 and #56)<0.36

Type Occurrence of ZincochromiteHide

Place of Conservation of Type Material:
Mining Institute, St. Petersburg, Russia, 1238/1.
Associated Minerals at Type Locality:
Reference:
Nesterov, A.R., Rumyantseva, Y.V. (1987): Zincochromite ZnCr2O4 - a new mineral from Karelia. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 116, 367-371.

Synonyms of ZincochromiteHide

Other Language Names for ZincochromiteHide

Relationship of Zincochromite to other SpeciesHide

Other Members of this group:
ChromiteFe2+Cr3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
CochromiteCoCr2O4Iso. m3m (4/m 3 2/m) : Fd3m
CoulsoniteFe2+V3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
CuprospinelCu2+Fe3+2O4Iso. m3m (4/m 3 2/m)
DellagiustaiteV2+Al2O4Iso. m3m (4/m 3 2/m) : Fd3m
Deltalumite(Al0.670.33)Al2O4Tet. 4 2m : P4m2
FrankliniteZn2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
GahniteZnAl2O4Iso. m3m (4/m 3 2/m) : Fd3m
GalaxiteMn2+Al2O4Iso. m3m (4/m 3 2/m) : Fd3m
GuiteCo2+Co3+2O4Iso.
HausmanniteMn2+Mn3+2O4Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
HercyniteFe2+Al2O4Iso. m3m (4/m 3 2/m) : Fd3m
HetaeroliteZnMn2O4Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
JacobsiteMn2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
Jacobsite-QMn2+(Fe3+,Mn3+)2O4Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
Maghemite(Fe3+0.670.33)Fe3+2O4Iso. 4 3 2 : P41 3 2
MagnesiochromiteMgCr2O4Iso. m3m (4/m 3 2/m) : Fd3m
MagnesiocoulsoniteMgV2O4Iso. m3m (4/m 3 2/m)
MagnesioferriteMgFe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
MagnetiteFe2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
ManganochromiteMn2+Cr2O4Iso. m3m (4/m 3 2/m) : Fd3m
Nichromite(Ni,Co,Fe)(Cr,Fe,Al)2O4Iso. m3m (4/m 3 2/m) : Fd3m
SpinelMgAl2O4Iso. m3m (4/m 3 2/m) : Fd3m
ThermaerogeniteCuAl2O4Iso. m3m (4/m 3 2/m) : Fd3m
Titanomaghemite(Ti4+0.50.5)Fe3+2O4Iso. 4 3 2 : P43 3 2
TrevoriteNi2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
UM1994-06-O:AlCoCoAl2O4
VuorelaineniteMn2+V3+2O4Iso. m3m (4/m 3 2/m) : Fd3m

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Zincochromite associated with FuchsiteK(Al,Cr)3Si3O10(OH)2
1 photo of Zincochromite associated with ClausthalitePbSe
1 photo of Zincochromite associated with RoscoeliteK(V3+,Al)2(AlSi3O10)(OH)2
1 photo of Zincochromite associated with ChromceladoniteK(MgCr◻)(Si4O10)(OH)2
1 photo of Zincochromite associated with IsomertieitePd11Sb2As2
1 photo of Zincochromite associated with PseudomertieitePd11(Sb,As)4
1 photo of Zincochromite associated with Caysichite-(Y)(Ca,Yb,Er)4Y4(Si8O20)(CO3)6(OH) · 7H2O
1 photo of Zincochromite associated with GoldAu
1 photo of Zincochromite associated with Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
1 photo of Zincochromite associated with MertieitePd8Sb2.5As0.5

Related Minerals - Strunz-mindat GroupingHide

4.BB.Elgoresyite(Mg5Si2)O9Mon. 2/m : B2/m
4.BB.ChenmingiteFeCr2O4Orth. mmm (2/m 2/m 2/m) : Pnma
4.BB.DellagiustaiteV2+Al2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.ThermaerogeniteCuAl2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.ChukocheniteLiAl5O8Orth. mmm (2/m 2/m 2/m) : Imma
4.BB.GarpenbergiteMn6◻AsSbO10(OH)2Orth. mmm (2/m 2/m 2/m)
4.BB.MagnéliiteTi3+2Ti4+2O7Tric. 1 : P1
4.BB.JianmuiteZrTi4+Ti3+5Al3O16Tet. 4 : I4
4.BB.05ChromiteFe2+Cr3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05CochromiteCoCr2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05CoulsoniteFe2+V3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05CuprospinelCu2+Fe3+2O4Iso. m3m (4/m 3 2/m)
4.BB.05Filipstadite(Fe3+0.5Sb5+0.5)Mn2O4Iso.
4.BB.05FrankliniteZn2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05GahniteZnAl2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05GalaxiteMn2+Al2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05HercyniteFe2+Al2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05JacobsiteMn2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05ManganochromiteMn2+Cr2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05MagnesiocoulsoniteMgV2O4Iso. m3m (4/m 3 2/m)
4.BB.05MagnesiochromiteMgCr2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05MagnesioferriteMgFe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05MagnetiteFe2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05Nichromite(Ni,Co,Fe)(Cr,Fe,Al)2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05Qandilite(Mg,Fe3+)2(Ti,Fe3+,Al)O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05SpinelMgAl2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05TrevoriteNi2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05UlvöspinelTiFe2+2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05VuorelaineniteMn2+V3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05HarmuniteCaFe2O4Orth. mmm (2/m 2/m 2/m) : Pbcm
4.BB.05WernerkrauseiteCa(Fe3+,Mn3+)2Mn4+O6Orth. mmm (2/m 2/m 2/m) : Pnma
4.BB.05Deltalumite(Al0.670.33)Al2O4Tet. 4 2m : P4m2
4.BB.05GuiteCo2+Co3+2O4Iso.
4.BB.10HausmanniteMn2+Mn3+2O4Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
4.BB.10HetaeroliteZnMn2O4Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
4.BB.10Manganostibite(Mn,Fe)7SbAsO12Orth. mmm (2/m 2/m 2/m)
4.BB.15Maghemite(Fe3+0.670.33)Fe3+2O4Iso. 4 3 2 : P41 3 2
4.BB.15Titanomaghemite(Ti4+0.50.5)Fe3+2O4Iso. 4 3 2 : P43 3 2
4.BB.20Tegengrenite(Mn3+0.5Sb5+0.5)Mg2O4Trig. 3 : R3
4.BB.25XieiteFe2+Cr2O4Orth. mmm (2/m 2/m 2/m)
4.BB.30CarmeltaziteZrAl2Ti4O11Orth. mmm (2/m 2/m 2/m) : Pnma
4.BB.35FeiiteFe2+2(Fe2+Ti4+)O5Orth. mmm (2/m 2/m 2/m) : Cmcm
4.BB.40MaohokiteMgFe2O4Orth. mmm (2/m 2/m 2/m) : Pnma
4.BB.45Tschaunerite (Fe2+)(Fe2+Ti4+)O4Orth. mmm (2/m 2/m 2/m) : Cmcm

Other InformationHide

Magnetism:
Paramagnetic
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for ZincochromiteHide

References for ZincochromiteHide

Localities for ZincochromiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Argentina
 
  • Córdoba Province
    • Punilla Department
      • San Antonio District
        • Pampa de Olaen
Espeche et al. ()
Australia
 
  • New South Wales
    • Young Co.
... +1 other reference
Austria
 
  • Salzburg
    • Zell am See District
      • Fusch an der Grossglocknerstrasse
Kolitsch et al. (2018)
  • Tyrol
    • Innsbruck-Land District
      • Navis
        • Staffelsee
Kolitsch et al. (2019)
Finland
 
  • Kainuu
    • Suomussalmi
Geological Survey of Finland (2017)
Ghana
 
  • Ashanti gold belt
    • Tarkwa
The Canadian Mineralogist Vol. 35 (1997)
India
 
  • Odisha
    • Anugul District
Mallick et al. (2005, March)
Jordan
 
  • Amman Governorate
    • Transjordan Plateau
      • Daba-Siwaqa complex
        • Hashem region
          • Lisdan-Siwaga Fault
            • Siwaga
              • Tulul al Hammam
Galuskina et al. (2021)
North Macedonia
 
  • Veles Municipality
    • Nežilovo
      • Jakupica Mountains
        • Babuna Valley
Ermolaeva et al. (2017) +1 other reference
Chukanov et al. (2018) +1 other reference
Russia
 
  • Kamchatka Krai
    • Milkovsky District
      • Tolbachik Volcanic field
        • Great Fissure eruption (Main Fracture)
          • Northern Breakthrough (North Breach)
            • Second scoria cone
doi.org (n.d.) +1 other reference
  • Komi Republic
    • Kozhim River Basin
      • Maldynyrd range (Maldy-nyrd range)
Pavel.M. Kartashov (n.d.)
  • Republic of Karelia
    • Medvezhyegorsky District
      • Zaonezhie peninsula
Nesterov et al. (1987) +1 other reference
Pekov (1998)
  • Sverdlovsk Oblast
    • Malyshevo
Popov et al. (2019, June)
Popov et al. (2019, June)
Venezuela
 
  • Bolívar
    • Guaniamo
      • Quebrada Grande River
Zdenek et al. (2010)
 
Mineral and/or Locality  
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