![]() |
Magnesiotaaffeite-2N2S Mineral Data |
General Magnesiotaaffeite-2N2S Information |
|||
![]() |
Mg3Al8BeO16 | ||
![]() |
Molecular Weight = 553.77 gm | ||
Magnesium 13.17 % Mg 21.83 % MgO | |||
Beryllium 1.63 % Be 4.52 % BeO | |||
Aluminum 38.98 % Al 73.65 % Al2O3 | |||
Oxygen 46.23 % O | |||
______ ______ | |||
100.00 % 100.00 % = TOTAL OXIDE | |||
![]() |
Mg3Al8BeO16 | ||
![]() |
Found in the gem gravels of Sri Lanka. | ||
![]() |
Approved IMA 1982 | ||
![]() |
Niriella Village, Ratnapura, Sri Lanka. 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 | ||
Taaffeite | |||
Magnesiotaaffeite-2N2S Image | |||
![]() |
|
||
![]() |
|
||
Magnesiotaaffeite-2N2S Crystallography |
|||
![]() |
a:c = 1:3.21616 | ||
![]() |
a = 5.69, c = 18.3, Z = 2; V = 513.11 Den(Calc)= 3.58 | ||
![]() |
Hexagonal - Dihexagonal Pyramidal H-M Symbol (6mm) Space Group: P 63mc | ||
![]() |
By Intensity(I/Io): 2.43(1), 1.428(0.8), 2.05(0.8), | ||
Physical Properties of Magnesiotaaffeite-2N2S |
|||
![]() |
None | ||
![]() |
Colorless, Violet red, Greenish, Light green, Pink violet. | ||
![]() |
3.6 - 3.613, Average = 3.6 | ||
![]() |
Transparent to Translucent | ||
![]() |
8-8.5 - Between Topaz and Chrysoberyl | ||
![]() |
Vitreous (Glassy) | ||
![]() |
white | ||
Optical Properties of Magnesiotaaffeite-2N2S |
|||
![]() |
CI meas= -0.004 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= -0.012 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2094,KPDmeas= 0.2078,KC= 0.207 Ncalc = 1.74 - 1.75 |
||
![]() |
Uniaxial (+), w=1.722, e=1.777, bire=0.0550. | ||
Calculated Properties of Magnesiotaaffeite-2N2S |
|||
![]() |
Bulk Density (Electron Density)=3.54 gm/cc note: Specific Gravity of Magnesiotaaffeite-2N2S =3.61 gm/cc. |
||
![]() |
Fermion Index = 0.02 Boson Index = 0.98 |
||
![]() |
PEMagnesiotaaffeite-2N2S = 1.44 barns/electron U=PEMagnesiotaaffeite-2N2S x rElectron Density= 5.11 barns/cc. |
||
![]() |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Magnesiotaaffeite-2N2S is Not Radioactive |
||
Magnesiotaaffeite-2N2S Classification |
|||
![]() |
07.02.11.01 (07)Multiple Oxides | ||
(07.02)(A+ B++)2 X4 Spinel group | |||
(07.02.11)Taaffeite Group (T2 = Be + T) | |||
![]() |
04.FC.25 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate | ||
04.F - Hydroxides (without V or U) | |||
04.FC -Hydroxides with OH, without H2O; corner-sharing octahedra | |||
Other Magnesiotaaffeite-2N2S Information |
|||
![]() |
PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
![]() |
Links to other databases for Magnesiotaaffeite-2N2S : 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-2N2S using: Visit our Advertisers for Magnesiotaaffeite-2N2S : Ask about Magnesiotaaffeite-2N2S here : Print or Cut-and-Paste your Magnesiotaaffeite-2N2S Specimen Label here :
|
||
Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.