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Davanite Mineral Data |
General Davanite Information |
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K2TiSi6O15 | ||
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Molecular Weight = 450.78 gm | ||
Potassium 14.47 % K | |||
Titanium 9.04 % Ti | |||
Silicon 31.55 % Si | |||
Oxygen 44.94 % O | |||
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100.00 % | |||
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K1.98Ti1.01Si6.01O15.03 | ||
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Found in contact metamorphic rocks in an alkalic massif (Murun massif, Russia); of magmatic origin, lining vugs in lamproites (Smoky Butte, Montana, USA). | ||
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Approved IMA 1984 | ||
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Murun massif, Russia. Link to MinDat.org Location Data. | ||
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Named for the Davan Stream near the locality. | ||
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Davanite ![]() |
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ICSD 46012 | ||
PDF 40-483 | |||
Davanite Image | |||
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Davanite Crystallography |
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a:b:c =0.9667:1:0.9214 | ||
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a = 7.26, b = 7.51, c = 6.92, Z = 1; alpha = 105.6°, beta = 112.9°, gamma = 99.4° V = 330.26 Den(Calc)= 2.27 | ||
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Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1 | ||
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By Intensity(I/Io): 3.022(1), 3.51(1), 2.615(0.9), | ||
Physical Properties of Davanite |
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None | ||
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Colorless. | ||
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2.76 | ||
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Transparent | ||
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Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). | ||
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5 - Apatite | ||
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Vitreous (Glassy) | ||
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white | ||
Optical Properties of Davanite |
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Biaxial (-), a=1.66, b=1.684, g=1.69, bire=0.0300 | ||
Calculated Properties of Davanite |
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Bulk Density (Electron Density)=2.32 gm/cc note: Specific Gravity of Davanite =2.35 gm/cc. |
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Fermion Index = 0.02 Boson Index = 0.98 |
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PEDavanite = 4.27 barns/electron U=PEDavanite x relectron= 9.90 barns/cc. |
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GRapi = 244.32 (Gamma Ray American Petroleum Institute Units)
Estimated Radioactivity from Davanite |
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Davanite Classification |
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72.02.01.02 (72)Phyllosilicate Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings | ||
(72.02)with 4-, 6-, and 8-membered rings | |||
(72.02.01)Dalylite group | |||
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09.EA.25 09 - SILICATES (Germanates) | ||
09.E - Phyllosilicates | |||
09.EA -Single nets of tetrahedra with 4-, 5-, (6-), and 8-membered rings | |||
Other Davanite Information |
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NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
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Links to other databases for Davanite : 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 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info Search for Davanite using: Visit our Advertisers for Davanite : Ask about Davanite here : Print or Cut-and-Paste your Davanite Specimen Label here :
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