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(Ni,Cu)Al4(SO4,(NO3)2)(OH)12 · 3H2O
Chalcoalumite Group.

Originally reported from Mbobo Mkulu Cave, Nelspruit District, Mpumalanga Province, South Africa.

Classification of Nickelalumite

Unnamed (probably valid)
Approval History:
Unnamed, but probably valid.

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
D : With only medium-sized cations; sheets of edge-sharing octahedra

3 : (AB)5(XO4)Zq·xH2O

13 : Nitrates

Physical Properties of Nickelalumite

2.231 g/cm3 (Calculated)

Optical Data of Nickelalumite

RI values:
nα = 1.532 nγ = 1.543
Max Birefringence:
δ = 0.011
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:

Chemical Properties of Nickelalumite

(Ni,Cu)Al4(SO4,(NO3)2)(OH)12 · 3H2O
Elements listed in formula:

Crystallography of Nickelalumite

Crystal System:
Cell Parameters:
a = 10.2567 Å, b = 8.8815 Å, c = 17.0989 Å
β = 95.548°
a:b:c = 1.155 : 1 : 1.925
Unit Cell Volume:
V 1550.3 ų

Relationship of Nickelalumite to other Species

Other Members of Group:
ChalcoalumiteCuAl4(SO4)(OH)12 · 3H2O
Mbobomkulite(Ni,Cu)Al4((NO3)2,SO4)(OH)12 · 3H2O
7.DD.05FelsőbányaiteAl4(SO4)(OH)10 · 4H2O
7.DD.10LangiteCu4SO4(OH)6 · 2H2O
7.DD.10PosnjakiteCu4SO4(OH)6 · H2O
7.DD.10WroewolfeiteCu4SO4(OH)6 · 2H2O
7.DD.15SpangoliteCu6AlSO4(OH)12Cl · 3H2O
7.DD.20Ktenasite(Cu,Zn)5(SO4)2(OH)6 · 6H2O
7.DD.25ChristeliteZn3Cu2(SO4)2(OH)6 · 4H2O
7.DD.30CampigliaiteCu4Mn2+(SO4)2(OH)6 · 4H2O
7.DD.30DevillineCaCu4(SO4)2(OH)6 · 3H2O
7.DD.30OrthoserpieriteCaCu4(SO4)2(OH)6 · 3H2O
7.DD.30SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
7.DD.30NiedermayriteCu4Cd(SO4)2(OH)6 · 4H2O
7.DD.30EdwardsiteCu3Cd2(SO4)2(OH)6 · 4H2O
7.DD.35Carrboydite(Ni1-xAlx)(SO4)x/2(OH)2 · nH2O (x<0.5, n>3x/2)
7.DD.35GlaucoceriniteZn1-xAlx(SO4)x/2(OH)2 · nH2O (x<0.5, n>3x/2)
7.DD.35Honessite(Ni1-xFex3+)(SO4)x/2(OH)2 · nH2O (x < 0.5, n < 3x/2)
7.DD.35Hydrohonessite(Ni1-xFex3+)(SO4)x/2(OH)2 · nH2O (x < 0.5, n > 3x/2)
7.DD.35Motukoreaite[Mg6Al3(OH)18][Na0.6(SO4,CO3)2 · 12H2O]
7.DD.35MountkeithiteMg11Fe33+(SO4)3.5(OH)24 · 11H2O
7.DD.35ShigaiteNaAl3Mn62+(SO4)2(OH)18 · 12H2O
7.DD.35WermlanditeMg8Al2(OH)18(SO4)2 · 12H2O
7.DD.35Woodwardite(Cu,Al)9(SO4)2(OH)18 · nH2O
7.DD.35Zincaluminite(Zn,Al)9(SO4)2(OH)18 · nH2O
7.DD.35Hydrowoodwardite(Cu1-xAlx)(SO4)x/2(OH)2 · nH2O (x < 0.5, n > 3x/2)
7.DD.35ZincowoodwarditeZn1-xAlx(OH)2(SO4)x/2 · nH2O (x=0.32-0.50)
7.DD.40LawsonbaueriteMn92+Zn4(SO4)2(OH)22 · 8H2O
7.DD.40TorreyiteMg9Zn4(SO4)2(OH)22 · 8H2O
7.DD.45MooreiteMg15(SO4)2(OH)26 · 8H2O
7.DD.50NamuwiteZn4SO4(OH)6 · 4H2O
7.DD.60RamsbeckiteCu15(SO4)4(OH)22 · 6H2O
7.DD.65VonbezingiteCa6Cu3(SO4)3(OH)12 · 2H2O
7.DD.70RedgilliteCu6SO4(OH)10 · H2O
7.DD.75ChalcoalumiteCuAl4SO4(OH)12 · 3H2O
7.DD.75KyrgyzstaniteZnAl4SO4(OH)12 · 3H2O
7.DD.80GuarinoiteZn6SO4(OH)10 · 5H2O
7.DD.80Schulenbergite(Cu,Zn)7(SO4)2(OH)10 · 3H2O
7.DD.80ThérèsemagnaniteNaCo4(SO4)(OH)6Cl · 6H2O
7.DD.80UM1992-30-SO:CCuHZn(Zn,Cu)7(SO4,CO3)2(OH)10 · 3H2O
7.DD.85MontetrisaiteCu6(SO4)(OH)10 · 2H2O
13.4NitromagnesiteMg(NO3)2 · 6H2O
13.5NitrocalciteCa(NO3)2 · 4H2O
13.7ButtgenbachiteCu36(NO3)2Cl6(OH)64 · nH2O
13.8SveiteKAl7(NO3)4(OH)16Cl2 · 8H2O
13.9DarapskiteNa3(SO4)(NO3) · H2O
13.10HumberstoniteK3Na7Mg2(SO4)6(NO3)2 · 6H2O
13.11Mbobomkulite(Ni,Cu)Al4(NO3,SO4)2(OH)12 · 3H2O
13.12Hydrombobomkulite(Ni,Cu)Al4(NO3)2(SO4)(OH)12 · 14H2O

Other Names for Nickelalumite

Name in Other Languages:

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 Nickelalumite

Reference List:
Martini, J.E.J. (1980) Mbobomkulite, hydrombobomkulite, and nickelalumite, new minerals from Mbobo Mkulu cave, eastern Transvaal. Annals of the Geological Survey of South Africa: 14(2): 1-110 (see: American Mineralogist (1982): 67: 415-416).

American Mineralogist (1982): 67: 416.

Karpenko, V.V., Agakhanov, A.A., Pautov, L.A., Dikaya, T.V., and Bekenova, G.K. (2004b) New occurrence of nickelalumite on Kara-Chagyr, South Kirgizia. New Data on Minerals: 39: 32-39.

Uvarova, Y.A., Sokolova, E., Hawthorne, F.C., Karpenko, V.V., Agakhanov, A.A., and Pautov, L.A. (2005) The crystal chemistry of the "nickelalumite"-group minerals. Canadian Mineralogist: 43: 1511-1519.

Internet Links for Nickelalumite URL:
Please feel free to link to this page.

Localities for Nickelalumite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
  • Tasmania
    • West Coast municipality
      • Zeehan district
Bottrill (unpub); Bottrill, R.S. & Baker, W.E. (2008) A Catalogue of the Minerals of Tasmania. Bull. 73. Tasmanian Geological Survey
  • Batken Oblast
Canadian Mineralogist: 43: 1511-1519.; Atali A. Agakhanov et al (2005) New Data on Minerals Vol 40 pp23-28
  • Osh Oblast
    • Alai Range (Alay Range)
      • Fergana Valley
        • Fergana
V.Y. Karpenko et al.: Zap. Vses. Mineral. Obshch. 133(2):59-68 (2004); New Data on Minerals: 39: 32-39.
South Africa
  • Mpumalanga Province
    • Ehlanzeni District
      • Nelspruit
Ann.Geol.Surv.S.Africa,(1980) 14, n2, 1-110;Martini, J.E.J. et al (1997), "Mbobo Mkulu Cave, South Africa", in "Cave Minerals of the World" (1997)
  • Wallis (Valais)
    • Goms
      • Furka pass area
        • Gletsch
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 288.
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