Zincochromite
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Formula:
ZnCr2O4
Colour:
Brown, brownish-grey in reflected light
Lustre:
Sub-Metallic
Hardness:
5½ - 6
Crystal System:
Isometric
Member of:
Name:
Named as the zinc analogue of Chromite.
Classification of Zincochromite
Approved
Approval Year:
1986
4/B.03-60
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
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 : MULTIPLE OXIDES
2 : AB2X4
7.14.10
7 : Oxides and Hydroxides
14 : Oxides of Cr
7 : Oxides and Hydroxides
14 : Oxides of Cr
Physical Properties of Zincochromite
Optical Data of Zincochromite
Type:
Isotropic
Chemical Properties of Zincochromite
Formula:
ZnCr2O4
Elements listed:
Crystallography of Zincochromite
Crystal System:
Isometric
Cell Parameters:
a = 8.32 Å
Unit Cell V:
575.93 ų (Calculated from Unit Cell)
Type Occurrence of Zincochromite
Synonyms of Zincochromite
Other Language Names for Zincochromite
Relationship of Zincochromite to other Species
Member of:
Other Members of this group:
| Chromite | Fe2+Cr3+2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| Cochromite | (Co,Ni,Fe)(Cr,Al)2O4 | |
| Coulsonite | Fe2+V3+2O4 | |
| Cuprospinel | Cu2+Fe3+2O4 | Iso. |
| Filipstadite | (Sb0.5Fe0.5)Mn2O4 | Iso. |
| Franklinite | Zn2+Fe3+2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| Gahnite | ZnAl2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| Galaxite | Mn2+Al2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| Hercynite | Fe2+Al2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| Jacobsite | Mn2+Fe3+2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| Magnesiochromite | MgCr2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| Magnesiocoulsonite | MgV2O4 | Iso. |
| Magnesioferrite | MgFe3+2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| Magnetite | Fe2+Fe3+2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| Manganochromite | Mn2+Cr2O4 | |
| Nichromite | (Ni,Co,Fe)(Cr,Fe,Al)2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| Qandilite | (Mg,Fe3+)2(Ti,Fe3+,Al)O4 | |
| Spinel | MgAl2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| Trevorite | Ni2+Fe3+2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| Ulvöspinel | Fe2TiO4 | Iso. |
| Vuorelainenite | Mn2+V3+2O4 | |
| Xieite | Fe2+Cr2O4 | Orth. mmm (2/m 2/m 2/m) |
Common Associates
Associated Minerals Based on Photo Data:
| Clausthalite | 1 photo of Zincochromite associated with Clausthalite on mindat.org. |
| Roscoelite | 1 photo of Zincochromite associated with Roscoelite on mindat.org. |
| Chromceladonite | 1 photo of Zincochromite associated with Chromceladonite on mindat.org. |
Related Minerals - Nickel-Strunz Grouping
| 4.BB.05 | Chromite | Fe2+Cr3+2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| 4.BB.05 | Cochromite | (Co,Ni,Fe)(Cr,Al)2O4 | |
| 4.BB.05 | Coulsonite | Fe2+V3+2O4 | |
| 4.BB.05 | Cuprospinel | Cu2+Fe3+2O4 | Iso. |
| 4.BB.05 | Filipstadite | (Sb0.5Fe0.5)Mn2O4 | Iso. |
| 4.BB.05 | Franklinite | Zn2+Fe3+2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| 4.BB.05 | Gahnite | ZnAl2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| 4.BB.05 | Galaxite | Mn2+Al2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| 4.BB.05 | Hercynite | Fe2+Al2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| 4.BB.05 | Jacobsite | Mn2+Fe3+2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| 4.BB.05 | Manganochromite | Mn2+Cr2O4 | |
| 4.BB.05 | Magnesiocoulsonite | MgV2O4 | Iso. |
| 4.BB.05 | Magnesiochromite | MgCr2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| 4.BB.05 | Magnesioferrite | MgFe3+2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| 4.BB.05 | Magnetite | Fe2+Fe3+2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| 4.BB.05 | Nichromite | (Ni,Co,Fe)(Cr,Fe,Al)2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| 4.BB.05 | Qandilite | (Mg,Fe3+)2(Ti,Fe3+,Al)O4 | |
| 4.BB.05 | Spinel | MgAl2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| 4.BB.05 | Trevorite | Ni2+Fe3+2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| 4.BB.05 | Ulvöspinel | Fe2TiO4 | Iso. |
| 4.BB.05 | Vuorelainenite | Mn2+V3+2O4 | |
| 4.BB.10 | Hausmannite | Mn2+Mn3+2O4 | Tet. 4/mmm (4/m 2/m 2/m) : I41/amd |
| 4.BB.10 | Hetaerolite | ZnMn2O4 | Tet. 4/mmm (4/m 2/m 2/m) : I41/amd |
| 4.BB.10 | Hydrohetaerolite | ZnMn2O4 · H2O | Tet. 4/mmm (4/m 2/m 2/m) : I41/amd |
| 4.BB.10 | Iwakiite | Mn2+Fe3+2O4 | Tet. 4/mmm (4/m 2/m 2/m) : I41/amd |
| 4.BB.15 | Maghemite | Fe3+2O3 | Iso. 4 3 2 : P41 3 2 |
| 4.BB.15 | Titanomaghemite | Fe3+(Fe3+,Ti4+,Fe2+,◻)2O4 | Iso. 4 3 2 : P43 3 2 |
| 4.BB.20 | Tegengrenite | (Mg,Mn2+)2Sb5+0.5(Mn3+,Si,Ti)0.5O4 | Trig. |
| 4.BB.25 | Xieite | Fe2+Cr2O4 | Orth. mmm (2/m 2/m 2/m) |
Related Minerals - Dana Grouping (8th Ed.)
| 7.2.3.1 | Magnesiochromite | MgCr2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| 7.2.3.2 | Manganochromite | Mn2+Cr2O4 | |
| 7.2.3.3 | Chromite | Fe2+Cr3+2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| 7.2.3.4 | Nichromite | (Ni,Co,Fe)(Cr,Fe,Al)2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| 7.2.3.5 | Cochromite | (Co,Ni,Fe)(Cr,Al)2O4 |
Related Minerals - Hey's Chemical Index of Minerals Grouping
| 7.14.1 | Eskolaite | Cr2O3 | Trig. |
| 7.14.2 | Bracewellite | CrO(OH) | Orth. mmm (2/m 2/m 2/m) |
| 7.14.3 | Grimaldiite | CrO(OH) | Trig. |
| 7.14.4 | Guyanaite | CrO(OH) | Orth. |
| 7.14.5 | Yimengite | K(Cr,Ti,Fe,Mg)12O19 | Hex. |
| 7.14.6 | Mathiasite | (K, Ba, Sr)(Zr, Fe)(Mg,Fe)2 (Ti,Cr,Fe)18O38 | Trig. |
| 7.14.7 | Mcconnellite | CuCrO2 | Trig. |
| 7.14.8 | Redledgeite | Ba(Ti4+6Cr3+2)O16 | Tet. |
| 7.14.9 | Hawthorneite | BaMgTi3Cr4Fe2+2Fe3+2O19 | Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc |
| 7.14.11 | Wattersite | (Hg+2)2Hg2+(CrO4)O2 | Mon. 2/m : B2/b |
| 7.14.12 | Chromite | Fe2+Cr3+2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| 7.14.13 | Magnesiochromite | MgCr2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
References for Zincochromite
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1987): 116: 367-371.
American Mineralogist (1988): 73: 931-932.
Internet Links for Zincochromite
mindat.org URL:
https://www.mindat.org/min-4412.html
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External Links:
Mineral Dealers:
Localities for Zincochromite
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for 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).
All localities listed without proper references should be considered as questionable.
Australia | |
| www.minerals.nsw.gov.au/minfo/62_elinforc.html. |
Ghana | |
| The Canadian Mineralogist Vol. 35,p p.587-595(1997) |
India | |
| Mallick, B., Rautray, T. R., Nayak, P. K., Vijayan, V., Singh, P., Behera, R. C., ... & Choudhury, R. K. (2005, March). Characterisation of hot material erupted from Mahanadi riverbank using EDXRF and XRD techniques. In INDIAN JOURNAL OF PHYSICS AND PROCEEDINGS OF THE INDIAN ASSOCIATION FOR THE CULTIVATION OF SCIENCE-NEW SERIES- (Vol. 79, No. 3, p. 293). NOT KNOWN. |
Russia | |
| Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow |
| Zapiski Vses. Mineralog. Obshch., 116(3),367-371; The Canadian Mineralogist Vol. 40, pp. 1001-1020 (2002) |
| Pavel M. Kartashov data |
Venezuela | |
| Zdenek Johan and Daniel Ohnenstetter (2010) Zincochromite from the Guaniamo River diamondiferous placers, Venezuela; evidence of its metasomatic origin. The Canadian Mineralogist(April 2010), 48(2):361-374 |
Srednyaya Padma mine, Velikaya Guba uran-vanadium deposit, Zaonezhie peninsula, Lake Onega, Karelia Republic, Northern Region, Russia