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Paratsepinite-Na Mineral Data |
General Paratsepinite-Na Information |
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(Na,Sr,K,Ca)7(Ti,Nb)8[Si4O12]4(O,OH)8•n(H2O) n ~ 8 | ||
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Molecular Weight = 2,286.52 gm | ||
Potassium 1.20 % K 1.44 % K2O | |||
Sodium 4.22 % Na 5.69 % Na2O | |||
Strontium 8.05 % Sr 9.52 % SrO | |||
Calcium 0.61 % Ca 0.86 % CaO | |||
Titanium 12.56 % Ti 20.96 % TiO2 | |||
Niobium 8.13 % Nb 11.63 % Nb2O5 | |||
Silicon 19.65 % Si 42.04 % SiO2 | |||
Hydrogen 0.79 % H 7.09 % H2O | |||
Oxygen 44.78 % O | |||
______ ______ | |||
100.00 % 99.23 % = TOTAL OXIDE | |||
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7(Na0.6)7(Sr0.3)7(K0.1)7(Ca0.05)8(Ti0.75)8(Nb0.25)4(Si4)4(O12)O6(OH)2�8(H2O) | ||
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Labuntsovite group | ||
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Proposed IMA 2003 (Dana # Added) | ||
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Link to MinDat.org Location Data. | ||
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Commission on New Minerals, Nomenclature and Classification (CNMNC) | ||
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IMA2003-008 | ||
Paratsepinite-Na Image | |||
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Paratsepinite-Na Crystallography |
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a:b:c =1.0243:1:1.1124 | ||
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a = 14.596, b = 14.249, c = 15.852, Z = 3; beta = 117.27° V = 2,930.45 Den(Calc)= 3.89 | ||
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Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m | ||
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By Intensity(I/Io): 7.09(1), 3.24(0.9), 3.11(0.8),3.15(0.8), 2.491(0.7), 2.54(0.7), | ||
Physical Properties of Paratsepinite-Na |
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Colorless. | ||
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Transparent | ||
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Vitreous (Glassy) | ||
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white | ||
Optical Properties of Paratsepinite-Na |
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CI calc= 0.297 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1789,KC= 0.2543 Ncalc = 1.99 |
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Biaxial (+), a=1.657, b=1.666, g=1.765, bire=0.1080 | ||
Calculated Properties of Paratsepinite-Na |
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Bulk Density (Electron Density)=3.79 gm/cc note: Specific Gravity of Paratsepinite-Na =3.89 gm/cc. |
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Fermion Index = 0.03 Boson Index = 0.97 |
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PEParatsepinite-Na = 23.63 barns/electron U=PEParatsepinite-Na x relectron= 89.58 barns/cc. |
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GRapi = 16.85 (Gamma Ray American Petroleum Institute Units)
Estimated Radioactivity from Paratsepinite-Na |
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Paratsepinite-Na Classification |
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60.01.03e.04 (60)Cyclosilicate Four-Membered Rings | ||
(60.01)as Titanosilicates | |||
(60.01.03e)Labuntsovite Group (Labuntsovite subgroup Monoclinic [C2/m]) | |||
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09.CE.30i 09 - SILICATES (Germanates) | ||
09.C - Cyclosilicates | |||
09.CE -[Si4O12]8- 4-membered single rings (vierer-Einfachringe), | |||
Other Paratsepinite-Na Information |
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Links to other databases for Paratsepinite-Na : 1 - Am. Min. Crystal Structure Database 2 - Athena 3 - GeoScienceWorld 4 - Google Images 5 - Google Scholar 6 - MinDAT 7 - Mineralienatlas (Deutsch) 8 - Online Mineral Museum 9 - QUT Mineral Atlas 10 - Ruff.Info Search for Paratsepinite-Na using: Visit our Advertisers for Paratsepinite-Na : Ask about Paratsepinite-Na here : Print or Cut-and-Paste your Paratsepinite-Na Specimen Label here :
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