General Nickelalumite Information![]() (Ni,Cu)Al4[(SO4),(NO3)2](OH)12•3(H2O) |
![]() Molecular Weight = 632.31 gm |
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Aluminum 17.07 % Al 32.25 % Al2O3 |
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Copper 3.01 % Cu 3.77 % CuO |
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Nickel 6.50 % Ni 8.27 % NiO |
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Hydrogen 2.87 % H 25.64 % H2O |
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Sulfur 7.61 % S 18.99 % SO3 |
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Nitrogen 2.22 % N 8.54 % N2O5 |
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Oxygen 60.73 % O |
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100.00 % 97.47 % = TOTAL OXIDE |
![]() Ni0.7Cu0.3Al4(SO4)1.5(NO3)(OH)12•3(H2O) |
![]() Crusts on gypsum crystals. |
![]() Not Approved IMA 1980 |
![]() Mbobo Mkulu cave, eastern Transvaal, South Africa. Link to MinDat.org Location Data. |
![]() Named in allusion to its composition. |
![]() Nickelalumite + Pronunciation |
![]() | | Nickelalumite Image
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Nickelalumite Crystallography![]() a:b:c =1.1484:1:1.9383 |
![]() a = 10.175, b = 8.86, c = 17.174, Z = 4; beta = 95.95° V = 1,539.90 Den(Calc)= 2.73 |
![]() Monoclinic - SphenoidalH-M Symbol (2) Space Group: P 21 |
![]() By Intensity(I/Io): 8.543(1), 1.997(0.2), 7.877(0.2), |
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| Physical Properties of Nickelalumite![]() {???} Perfect |
![]() Sky blue. |
![]() 2.24 |
![]() Encrustations - Forms crust-like aggregates on matrix. |
![]() Nodular - Tuberose forms having irregular protuberances over the surface. |
![]() 2.5 - Finger Nail |
![]() bluish white |
| Optical Properties of Nickelalumite![]() CI meas= -0.047 (Good) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.141 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1969,KPDmeas= 0.24,KC= 0.2292 Ncalc = 1.51 - 1.63 ![]() Biaxial (?), a=1.532, g=1.543, bire=0.0110 |
| Calculated Properties of Nickelalumite![]() Bulk Density (Electron Density)=2.28 gm/cc |
note: Specific Gravity of Nickelalumite =2.24 gm/cc. ![]() Fermion Index = 0.02 |
Boson Index = 0.98 ![]() PENickelalumite = 4.81 barns/electron |
U=PENickelalumite x rElectron Density= 10.94 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Nickelalumite is Not Radioactive | Nickelalumite Classification![]() 31.03.01.02 (31)Hydrated Sulfates Containing Hydroxyl or Halogen |
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(31.03)where (A+ B++)5 (XO4) Zq·x(H2O) |
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(31.03.01)Dana Group |
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![]() 07.DD.75 07 - SULFATES (SELENATES, TELLURATES) |
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07.D - Sulfates (selenates, etc.) with additional anions, with H2O |
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07.DD -With only medium-sized cations; sheets of edge-sharing octahedra |
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| Other Nickelalumite Information![]() NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
![]() Links to other databases for Nickelalumite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - GeoScienceWorld 4 - Google Images 5 - Google Scholar 6 - MinDAT 7 - Mineralienatlas (Deutsch) 8 - Online Mineral Museum 9 - QUT Mineral Atlas 10 - Ruff.Info Search for Nickelalumite using: Visit our Advertisers for Nickelalumite : A Bijoux Google Search for NickelalumiteAdam's Minerals Google Search for Nickelalumite Cape Minerals Google Search for Nickelalumite Dakota Matrix Minerals Google Search for Nickelalumite Excalibur Mineral Corp. Google Search for Nickelalumite Exceptional Minerals Google Search for Nickelalumite John Betts Fine Minerals Search for Nickelalumite McDougall Minerals Google Search for Nickelalumite Mineral News Website Link Rock and Mineral Shows Google Search for Nickelalumite Weinrich Minerals, Inc. Google Search for Nickelalumite Ask about Nickelalumite here : Print or Cut-and-Paste your Nickelalumite Specimen Label here :
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