General Hafnon Information![]() HfSiO4 |
![]() Molecular Weight = 244.28 gm |
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Hafnium 58.45 % Hf 68.93 % HfO2 |
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Zirconium 2.24 % Zr 3.03 % ZrO2 |
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Silicon 13.11 % Si 28.04 % SiO2 |
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Oxygen 26.20 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
![]() Hf0.8Zr0.06Si1.14O4 |
![]() Found in tantalum-bearing granite pegmatites and in a weathered pegmatite. |
![]() Approved IMA 1974 |
![]() (Zambezia district, Mozambique and Mt. Holland, Western Australia. Link to MinDat.org Location Data. |
![]() Named for the composition containing hafnium. |
![]() Hafnon |
![]() ![]() ICSD 59111 |
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PDF 20-467 |
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Hafnon Crystallography![]() a:c = 1:0.90729 |
![]() a = 6.5725, c = 5.9632, Z = 4; V = 257.60 Den(Calc)= 6.30 |
![]() Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: I 41/amd |
![]() By Intensity(I/Io): 3.29(1), 2.512(0.7), 4.43(0.6), |
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| Physical Properties of Hafnon![]() {???} Indistinct |
![]() Colorless, Brownish, Yellow. |
![]() 6.97 |
![]() Transparent |
![]() 7.5 - Garnet |
![]() Vitreous - Adamantine |
![]() gray white |
| Optical Properties of Hafnon![]() CI meas= 0.026 (Excellent) - where the CI = (1-KPDmeas/KC) |
CI calc= -0.078 (Fair) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1552,KPDmeas= 0.1402,KC= 0.144 Ncalc = 1.91 - 2 ![]() Uniaxial (+), w=1.93-1.97, e=1.98-2.03, bire=0.0500-0.0600. |
| Calculated Properties of Hafnon![]() Bulk Density (Electron Density)=6.16 gm/cc |
note: Specific Gravity of Hafnon =6.97 gm/cc. ![]() Fermion Index = 0.19 |
Boson Index = 0.81 ![]() PEHafnon = 651.76 barns/electron |
U=PEHafnon x rElectron Density=4,015.37 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Hafnon is Not Radioactive | Hafnon Classification![]() 51.05.02.02 (51)Nesosilicate Insular SiO4 Groups Only |
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(51.05)with cations in >[6] coordination |
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(51.05.02)Zircon group |
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![]() 09.AD.30 09 - SILICATES (Germanates) |
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09.A - Nesosilicates |
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09.AD -Nesosilicates without additional anions; |
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| Other Hafnon Information![]() NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
![]() Links to other databases for Hafnon : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineral and Gemstone Kingdom 12 - Mineralienatlas (Deutsch) 13 - Online Mineral Museum 14 - QUT Mineral Atlas 15 - Ruff.Info 16 - University of Colorado - Mineral Structure Data 17 - WWW-MINCRYST Search for Hafnon using: Visit our Advertisers for Hafnon : A Bijoux Google Search for HafnonAdam's Minerals Google Search for Hafnon Cape Minerals Google Search for Hafnon Dakota Matrix Minerals Google Search for Hafnon Excalibur Mineral Corp. Google Search for Hafnon Exceptional Minerals Google Search for Hafnon John Betts Fine Minerals Search for Hafnon McDougall Minerals Google Search for Hafnon Mineral News Website Link Rock and Mineral Shows Google Search for Hafnon Weinrich Minerals, Inc. Google Search for Hafnon Ask about Hafnon here : Print or Cut-and-Paste your Hafnon Specimen Label here :
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