[Mineral Auctions] [Register] [Current Auctions] [Log In] [www.danweinrich.com] Dan Weinrich Auctions Specializing In Live Weekly Auctions Of Top Quality Mineral Specimens The Place To Find Great Specimens At Great Prices! General Weberite InformationNa2MgAlF7 |
Molecular Weight = 230.25 gm |
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Sodium 19.97 % Na 26.92 % Na2O |
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Magnesium 10.56 % Mg 17.50 % MgO |
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Aluminum 11.72 % Al 22.14 % Al2O3 |
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Fluorine 57.76 % F 57.76 % F |
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- %
F -24.32 % -O=F2 |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Na2MgAlF7 |
With cryolite and other fluorides. |
Valid Species (Pre-IMA) 1938 |
Ivigtut, Greenland. Link to MinDat.org Location Data. |
Named for Theobald C. F. Weber (1823-1886), one of the founders of the cryolite industry in Denmark. |
Weberite |
ICSD 33507 |
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PDF 5-733 |
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Weberite Crystallographya:b:c =0.7059:1:0.7303 |
a = 7.06, b = 10, c = 7.303, Z = 4; V = 515.59 Den(Calc)= 2.97 |
Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: I mma |
By Intensity(I/Io): 1.779(1), 2.89(0.9), 2.95(0.9), |
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Mouse
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| Physical Properties of Weberite{101} Poor, {010} Indistinct |
Greenish, Gray, Grayish white, White. |
2.96 |
Translucent |
Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern. |
Anhedral Grains - Granular minerals without the expression of crystal shapes |
Massive - Uniformly indistinguishable crystals forming large masses. |
3.5 - Copper Penny |
Vitreous (Glassy) |
white |
| Optical Properties of WeberiteBiaxial (+), a=1.346, b=1.348, g=1.35, bire=0.0040, 2V(Calc)=88, 2V(Meas)=83. |
| Calculated Properties of WeberiteBulk Density (Electron Density)=2.84 gm/cc |
note: Specific Gravity of Weberite =2.97 gm/cc. Fermion Index = 0.01 |
Boson Index = 0.99 PEWeberite = 1.18 barns/electron |
U=PEWeberite x rElectron Density= 3.36 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Weberite is Not Radioactive | Weberite Classification11.06.13.01 (11)Halide Complexes; Alumino-fluorides |
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(11.06)with miscellaneous formulae |
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(11.06.13)Dana Group |
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03.CB.25 03 - HALIDES |
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03.C - Complex Halides |
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03.CB -Neso-aluminofluorides |
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| Other Weberite InformationNAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
Links to other databases for Weberite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - Google Images 6 - Google Scholar 7 - Handbook of Mineralogy (MinSocAm) 8 - Handbook of Mineralogy (UofA) 9 - MinDAT 10 - MinMax(Deutsch) 11 - MinMax(English) 12 - Mineralienatlas (Deutsch) 13 - QUT Mineral Atlas 14 - Ruff.Info 15 - WWW-MINCRYST Search for Weberite using: Visit our Advertisers for Weberite : AA Mineral SpecimensB & L Fine Minerals Crystalarium.com Dan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Desert Winds Gems and Minerals Excalibur Minerals Exceptional Minerals Fabre Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club Wrights Rock Shop Translate Weberite Mineral Data : Ask about Weberite here : Print or Cut-and-Paste your Weberite Specimen Label here :
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