General Denisovite Information![]() (K,Na)Ca2Si3O8(F,OH) |
![]() Molecular Weight = 345.98 gm |
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Potassium 8.48 % K 10.21 % K2O |
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Sodium 1.66 % Na 2.24 % Na2O |
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Calcium 23.17 % Ca 32.42 % CaO |
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Silicon 24.35 % Si 52.10 % SiO2 |
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Hydrogen 0.07 % H 0.65 % H2O |
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Oxygen 38.15 % O |
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Fluorine 4.12 % F 4.12 % F |
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- %
F -1.73 % -O=F2 |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
![]() K0.75Na0.25Ca2Si3O8F0.75(OH)0.25 |
![]() In nepheline syenite in a diŽerentiated alkalic massif. |
![]() Approved IMA 1984 |
![]() Mts. Eveslogchorr and Yukspor, Khibiny massif, Kola Peninsula, and in the Murun massif, southwest of Olekminsk, Yakutia, Russia. Link to MinDat.org Location Data. |
![]() Named for Aleksander Petrovich Denisov (1918-1972), Russian specialist in X-ray investigations of minerals, of the Kola Scientific Center, Russia. |
![]() Denisovite + Pronunciation |
![]() | | Denisovite Image
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Denisovite Crystallography![]() a:b:c =4.2944:1:2.5375 |
![]() a = 30.92, b = 7.2, c = 18.27, Z = 20; beta = 95° V = 4,051.86 Den(Calc)= 2.84 |
![]() Monoclinic |
![]() By Intensity(I/Io): 2.75(1), 3.32(1), 3.03(0.9), |
| Physical Properties of Denisovite![]() {???} Indistinct |
![]() Greenish gray, Gray. |
![]() 2.76 |
![]() Brittle - Generally displayed by glasses and most non-metallic minerals. |
![]() 4-5 - Fluorite-Apatite |
![]() Pearly |
![]() gray white |
| Optical Properties of Denisovite![]() CI meas= -0.009 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.02 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2008,KPDmeas= 0.2066,KC= 0.2049 Ncalc = 1.57 - 1.58 ![]() Biaxial (+), a=1.567, b=1.568, g=1.576, bire=0.0090 |
| Calculated Properties of Denisovite![]() Bulk Density (Electron Density)=2.74 gm/cc |
note: Specific Gravity of Denisovite =2.76 gm/cc. ![]() Fermion Index = 0.01 |
Boson Index = 0.99 ![]() PEDenisovite = 4.67 barns/electron |
U=PEDenisovite x relectron= 12.83 barns/cc. ![]() |
GRapi = 121.59 (Gamma Ray American Petroleum Institute Units)
Estimated Radioactivity from Denisovite | Denisovite Classification![]() 65.02.01.07 (65)Inosilicate Single-Width Unbranched Chains, W=1 |
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(65.02)with chains P=3 |
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(65.02.01)Wollastonite group |
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![]() 09.HA.85 09 - SILICATES (Germanates) |
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09.H - Unclassified Silicates |
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09.HA -With alkali and alkali-earth Elements |
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| Other Denisovite Information![]() NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
![]() Links to other databases for Denisovite : |
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 Denisovite using: Visit our Advertisers for Denisovite : A Bijoux Google Search for DenisoviteAdam's Minerals Google Search for Denisovite Cape Minerals Google Search for Denisovite Dakota Matrix Minerals Google Search for Denisovite Excalibur Mineral Corp. Google Search for Denisovite Exceptional Minerals Google Search for Denisovite John Betts Fine Minerals Search for Denisovite McDougall Minerals Google Search for Denisovite Mineral News Website Link Rock and Mineral Shows Google Search for Denisovite Weinrich Minerals, Inc. Google Search for Denisovite Ask about Denisovite here : Print or Cut-and-Paste your Denisovite Specimen Label here :
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