General Magnesiotaaffeite-6N3S Information![]() (Mg,Fe++,Zn)2Al6BeO12 |
![]() Molecular Weight = 426.60 gm |
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Magnesium 9.69 % Mg 16.06 % MgO |
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Beryllium 1.90 % Be 5.28 % BeO |
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Aluminum 37.95 % Al 71.70 % Al2O3 |
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Zinc 1.53 % Zn 1.91 % ZnO |
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Iron 3.93 % Fe 5.05 % FeO |
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Oxygen 45.00 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
![]() Mg1.7Fe2+0.3Zn0.1Al6Be0.9O12 |
![]() In a nodule, perhaps formerly a corundum crystal, in high-grade metapyroxinite, metaperidotites, and granulites. Renamed from musgravite. |
![]() Approved IMA 2002 (Dana # Added) |
![]() Located 16 km north-northeast of Ernambella Mission, Musgrave Ranges, South Australia. Link to MinDat.org Location Data. |
![]() Named for Count R.Taaffe of Dublin, Ireland, who discovered the mineral in 1945. (S=Spinel, N=Nolanite Layers). |
![]() IMA2001-A |
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Musgravite |
| | Magnesiotaaffeite-6N3S Image
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Magnesiotaaffeite-6N3S Crystallography![]() a:c = 1:7.24158 |
![]() a = 5.675, c = 41.096, Z = 6; V = 1,146.20 Den(Calc)= 3.71 |
![]() Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m |
![]() By Intensity(I/Io): 2.408(1), 1.419(0.8), 2.052(0.7), |
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| Physical Properties of Magnesiotaaffeite-6N3S![]() {0001} Perfect, {1011} Parting |
![]() Light olive green. |
![]() 3.68 |
![]() Massive - Uniformly indistinguishable crystals forming large masses. |
![]() Platy - Sheet forms (e.g. micas). |
![]() 8-8.5 - Between Topaz and Chrysoberyl |
![]() Vitreous (Glassy) |
![]() white |
| Optical Properties of Magnesiotaaffeite-6N3S![]() CI meas= 0.026 (Excellent) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.034 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1987,KPDmeas= 0.2003,KC= 0.2057 Ncalc = 1.76 ![]() Uniaxial (-), e=1.735, w=1.739, bire=0.0040. |
| Calculated Properties of Magnesiotaaffeite-6N3S![]() Bulk Density (Electron Density)=3.60 gm/cc |
note: Specific Gravity of Magnesiotaaffeite-6N3S =3.68 gm/cc. ![]() Fermion Index = 0.03 |
Boson Index = 0.97 ![]() PEMagnesiotaaffeite-6N3S = 3.25 barns/electron |
U=PEMagnesiotaaffeite-6N3S x rElectron Density= 11.72 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Magnesiotaaffeite-6N3S is Not Radioactive | Magnesiotaaffeite-6N3S Classification![]() 07.02.12.01 (07)Multiple Oxides |
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(07.02)(A+ B++)2 X4 Spinel group |
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(07.02.12)Taaffeite Group (T2 = Be + T) |
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![]() 04.FC.25 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.FC -Hydroxides with OH, without H2O; corner-sharing octahedra |
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| Other Magnesiotaaffeite-6N3S Information![]() NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
![]() Links to other databases for Magnesiotaaffeite-6N3S : |
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 Magnesiotaaffeite-6N3S using: Visit our Advertisers for Magnesiotaaffeite-6N3S : A Bijoux Google Search for Magnesiotaaffeite-6N3SAdam's Minerals Google Search for Magnesiotaaffeite-6N3S Cape Minerals Google Search for Magnesiotaaffeite-6N3S Dakota Matrix Minerals Google Search for Magnesiotaaffeite-6N3S Excalibur Mineral Corp. Google Search for Magnesiotaaffeite-6N3S Exceptional Minerals Google Search for Magnesiotaaffeite-6N3S John Betts Fine Minerals Search for Magnesiotaaffeite-6N3S McDougall Minerals Google Search for Magnesiotaaffeite-6N3S Mineral News Website Link Rock and Mineral Shows Google Search for Magnesiotaaffeite-6N3S Weinrich Minerals, Inc. Google Search for Magnesiotaaffeite-6N3S Ask about Magnesiotaaffeite-6N3S here : Print or Cut-and-Paste your Magnesiotaaffeite-6N3S Specimen Label here :
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