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Hydrombobomkulite

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Formula:
(Ni,Cu)Al4(NO3)2(SO4)(OH)12 · 14H2O
System:
Monoclinic
See also mbobomkulite.


Classification of Hydrombobomkulite

Approved
Approval Year:
1979
5.ND.15

5 : CARBONATES (NITRATES)
N : NITRATES
D : With OH (etc.) and H2O
Dana 7th ed.:
19.2.4.2
19.1.4.2

19 : NITRATES CONTAINING HYDROXYL OR HALOGEN
1 : Anhydrous Nitrates Containing Hydroxyl or Halogen
13.12

13 : Nitrates

Optical Data of Hydrombobomkulite

Type:
Biaxial
Dispersion:
r > v strong

Chemical Properties of Hydrombobomkulite

IMA Formula:
(Ni,Cu)Al4(NO3)2(SO4)(OH)12 · 14H2O
Idealised Formula:
NiAl4(NO3)2(OH)12 · 13-14H2O
Elements listed in formula:

Crystallography of Hydrombobomkulite

Crystal System:
Monoclinic
Cell Parameters:
a = 10.14 Å, b = 17.15 Å, c = 20.78 Å
β = 90.55°
Ratio:
a:b:c = 0.591 : 1 : 1.212
Unit Cell Volume:
V 3,613.50 ų (Calculated from Unit Cell)

Type Occurrence of Hydrombobomkulite

Relationship of Hydrombobomkulite to other Species

Structurally related to group(s):
Chalcoalumite GroupA group of metal(II)-Al-sulphates, with additional anions in some species.
5.ND.05LikasiteCu3NO3(OH)5 · 2H2O
5.ND.10Mbobomkulite(Ni,Cu)Al4(NO3,SO4)2(OH)12 · 3H2O
5.ND.20SveiteKAl7(NO3)4(OH)16Cl2 · 8H2O
13.1NitratineNaNO3
13.2NiterKNO3
13.3GerhardtiteCu2NO3(OH)3
13.4NitromagnesiteMg(NO3)2 · 6H2O
13.5NitrocalciteCa(NO3)2 · 4H2O
13.6NitrobariteBa(NO3)2
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
13.13Nickelalumite(Ni,Cu)Al4(SO4,(NO3)2)(OH)12 · 3H2O
19.2.4.1Mbobomkulite(Ni,Cu)Al4(NO3,SO4)2(OH)12 · 3H2O

Other Names for Hydrombobomkulite

Name in Other Languages:
Simplified Chinese:水硫硝镍铝石
Traditional Chinese:水硫硝鎳鋁石

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 Hydrombobomkulite

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: 415-416.

Internet Links for Hydrombobomkulite

mindat.org URL:
https://www.mindat.org/min-1981.html
Please feel free to link to this page.

Localities for Hydrombobomkulite

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.
South Africa (TL)
 
  • Mpumalanga Province
    • Ehlanzeni District
      • Nelspruit
Annal.Geol.Survey S.Africa,(1980) 14, no. 2, 1-110; Martini, J.E.J. et al (1997), "Mbobo Mkulu Cave, South Africa", in "Cave Minerals of the World" (1997)
USA
 
  • Utah
    • San Juan Co.
      • White Canyon District
        • White Canyon
Can Min (2001) 39, 6, 1685-1689
Mineral and/or Locality  
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