General Nordstrandite InformationAl(OH)3 |
Molecular Weight = 78.00 gm |
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Aluminum 34.59 % Al 65.36 % Al2O3 |
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Hydrogen 3.88 % H 34.64 % H2O |
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Oxygen 61.53 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
Al(OH)3 |
Weathering product of bauxitic soils derived from limestone. Vein or fissure-filling material in dolomitic oil shale. Alteration product of aluminum carbonate minerals. Late-stage m ineral in nepheline syenite pegmatites |
Approved IMA 1958 |
Gunony Kapor, near Bau, Sarawak, Malaysia. Link to MinDat.org Location Data. |
Named for R. A. van Nordstrand (1817-), Sinclair Research Laboratories, who first synthesized the compound. |
Nordstrandite + Pronunciation |
ICSD 24466 |
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PDF 24-6 |
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Nordstrandite Crystallographya:b:c =0.8863:1:0.7315 |
a = 6.148, b = 6.936, c = 5.074, Z = 4; alpha = 95.76°, beta = 99.06°, gamma = 83.3° V = 211.14 Den(Calc)= 2.45 |
Triclinic - PedialH-M Symbol (1) Space Group: P1 |
By Intensity(I/Io): 4.78(1), 2.26(0.4), 2.39(0.4), |
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| Physical Properties of Nordstrandite{110} Perfect |
Beige, Colorless, Light brown, Light green, Pink. |
2.42 |
Transparent |
3 - Calcite |
Vitreous - Pearly |
white |
| Optical Properties of NordstranditeCI meas= 0.039 (Good) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.051 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2401,KPDmeas= 0.2431,KC= 0.2531 Ncalc = 1.61 - 1.62 Biaxial (+), a=1.58, b=1.583, g=1.602, bire=0.0220, 2V(Calc)=44, 2V(Meas)=24. Dispersion r < v moderate. |
| Calculated Properties of NordstranditeBulk Density (Electron Density)=2.48 gm/cc |
note: Specific Gravity of Nordstrandite =2.42 gm/cc. Fermion Index = 0.0003011748 |
Boson Index = 0.9996988252 PENordstrandite = 1.10 barns/electron |
U=PENordstrandite x rElectron Density= 2.73 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Nordstrandite is Not Radioactive | Nordstrandite Classification06.03.03.01 (06)Hydroxides and Oxides Containing Hydroxyl |
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(06.03)with (OH)3 or (OH)6 groups |
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(06.03.03)Dana Group |
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04.FE.10 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.F - Hydroxides (without V or U) |
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04.FE -Hydroxides with OH, without H2O; sheets of edge-sharing octahedra |
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| Other Nordstrandite InformationNAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8) |
Links to other databases for Nordstrandite : |
1 - Alkali-Nuts(English) 2 - Alkali-Nuts(Francais) 3 - Am. Min. Crystal Structure Database 4 - Athena 5 - EUROmin Project 6 - Ecole des Mines de Paris 7 - GeoScienceWorld 8 - Google Images 9 - Google Scholar 10 - Handbook of Mineralogy (MinSocAm) 11 - Handbook of Mineralogy (UofA) 12 - MinDAT 13 - Mineralienatlas (Deutsch) 14 - Online Mineral Museum 15 - QUT Mineral Atlas 16 - Ruff.Info 17 - WWW-MINCRYST Search for Nordstrandite using: Visit our Advertisers for Nordstrandite : B and L Fine MineralsDakota Matrix Minerals Dan & Diana Weinrich Mineral Auctions Excalibur Mineral Corp. Exceptional Minerals John Betts Fine Minerals Mineral News Mineral of the Month Club NY/NJ Gem & Mineral Show TIMA Mineral Analyzer Weinrich Minerals, Inc. Wright's Rock Shop Ask about Nordstrandite here : Print or Cut-and-Paste your Nordstrandite Specimen Label here :
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