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Denisovite Mineral Data + |
General Denisovite Information |
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| (K,Na)Ca2Si3O8(F,OH) | |||
| Molecular Weight = 345.98 gm | |||
| Potassium 8.48 % K 10.21 % K2O | |||
| Sodium 1.66 % Na 2.24 % Na2O | |||
| Calcium 23.17 % Ca 32.42 % CaO | |||
| Silicon 24.35 % Si 52.10 % SiO2 | |||
| Hydrogen 0.07 % H 0.65 % H2O | |||
| Oxygen 38.15 % O | |||
| Fluorine 4.12 % F 4.12 % F | |||
| - % F -1.73 % -O=F2 | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| K0.75Na0.25Ca2Si3O8F0.75(OH)0.25 | |||
| Approved IMA 1984 | |||
| Link to MinDat.org Location Data. | |||
Denisovite Image | |||
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Denisovite Crystallography |
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| 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 |
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| [???] 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 |
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| 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 |
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| Biaxial (+), a=1.567, b=1.568, g=1.576, bire=0.0090 | |||
Calculated Properties of Denisovite |
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relectron=2.74 gm/cc |
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| Fermion Index = 0.01187 Boson Index = 0.98813 |
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PEDenisovite = 4.67 barns/electron |
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| GRapi = 121.59 (Gamma Ray American Petroleum Institute Units) Estimated Radioactivity from Denisovite |
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Denisovite Classification |
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| 65.2.1.7 (65)Inosilicate Single-Width Unbranched Chains, W=1 | |||
| (65.2)with chains P=3 | |||
| (65.2.1)Wollastonite group | |||
| VIII/F.18-70 VIII - Silicates | |||
| VIII/F - Inosilicates (chain and band) Triplet chains [Si3O9]6- | |||
| VIII/F.18 - Wollastonite-2M - Foshagite series | |||
Other Denisovite Information |
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| 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 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (MinSocAm) 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 -École des Mines de Paris Search for Denisovite using: Visit our Advertisers for Denisovite : AA Mineral SpecimensB & L Fine Minerals Crystal Vaults Dan Weinrich Fine Minerals Dan Weinrich Auctions e-Rocks Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals Rockshop.cz T G Fine Minerals Wrights Rock Shop Translate Denisovite Mineral Data : Ask about Denisovite here : Print or Cut-and-Paste your Denisovite Specimen Label here :
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