[Minerals] [Gems] [Sale Items] [Gold Rings] [Big Stuff] [Main Page] Shop early for Holiday Season and get the best stuff. You can put it on layaway for up to six weeks! General Tsepinite-K Information(K,Ba,Na)2(Ti,Nb)2(Si4O12)(OH,O)2•3(H2O) |
Molecular Weight = 614.51 gm |
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Potassium 5.47 % K 6.59 % K2O |
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Barium 10.28 % Ba 11.48 % BaO |
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Sodium 1.61 % Na 2.17 % Na2O |
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Titanium 12.93 % Ti 21.58 % TiO2 |
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Manganese 0.89 % Mn 1.15 % MnO |
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Niobium 4.99 % Nb 7.14 % Nb2O5 |
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Iron 0.27 % Fe 0.39 % Fe2O3 |
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Silicon 18.28 % Si 39.11 % SiO2 |
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Hydrogen 1.16 % H 10.39 % H2O |
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Oxygen 44.11 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
K0.86Ba0.46Na0.43Mn2+0.1Ti1.66Nb0.33Fe3+0.03Si4O12(OH)1.21O0.79·2.94(H2O) |
Alkaline pegmatites as pseudomorphs after murmanite. Labuntsovite group; structure determined. |
Approved IMA 2003 (Dana # Added) |
Mt. Karnasurt, Lovozero alkaline massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. |
Named as the K-dominant analog of tsepinite-Na. |
IMA2002-005 |
| | Tsepinite-K Image
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Tsepinite-K Crystallographya:b:c =1.038:1:0.5639 |
a = 14.327, b = 13.802, c = 7.783, Z = 4; beta = 116.95° V = 1,371.89 Den(Calc)= 2.98 |
Monoclinic - DomaticH-M Symbol (m) Space Group: Cm |
By Intensity(I/Io): 6.87(1)(001,020), 2.56(0.9)(203,331), 3.05(0.8)(022,041),3(0.6)(240,241), 3.2(0.6)(400), 3.95(0.5), 4.85(0.5), |
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| Physical Properties of Tsepinite-K{???} Imperfect |
Light brown, White, Colorless. |
2.88 |
Transparent |
Brittle - Generally displayed by glasses and most non-metallic minerals. |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
5 - Apatite |
Vitreous (Glassy) |
| Optical Properties of Tsepinite-KCI meas= 0.009 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.042 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2451,KPDmeas= 0.2536,KC= 0.2558 Ncalc = 1.74 - 1.76 Biaxial (+), a=1.69, b=1.701, g=1.8, bire=0.1100 |
| Calculated Properties of Tsepinite-KBulk Density (Electron Density)=2.80 gm/cc |
note: Specific Gravity of Tsepinite-K =2.88 gm/cc. Fermion Index = 0.04 |
Boson Index = 0.96 PETsepinite-K = 53.39 barns/electron |
U=PETsepinite-K x relectron= 149.53 barns/cc. |
GRapi = 76.77 (Gamma Ray American Petroleum Institute Units)
Estimated Radioactivity from Tsepinite-K | Tsepinite-K Classification60.01.03b.03 (60)Cyclosilicate Four-Membered Rings |
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(60.01)as Titanosilicates |
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(60.01.03b)Labuntsovite Group (Vuoriyarvite subgroup Monoclinic [Cm]) |
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09.CE.30b 09 - SILICATES (Germanates) |
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09.C - Cyclosilicates |
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09.CE -[Si4O12]8- 4-membered single rings (vierer-Einfachringe), |
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| Other Tsepinite-K InformationNAME( AmMin, v 89, p 895) PHYS. PROP.(AmMin, v 89, p 895) OPTIC PROP.(AmMin, v 89, p 895) |
Links to other databases for Tsepinite-K : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - Google Images 4 - Google Scholar 5 - MinDAT 6 - MinMax(Deutsch) 7 - MinMax(English) 8 - Mineralienatlas (Deutsch) 9 - QUT Mineral Atlas 10 - Ruff.Info Search for Tsepinite-K using: Visit our Advertisers for Tsepinite-K : AA Mineral SpecimensB & L Fine Minerals Crystalarium.com Dan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Desert Winds Gems and Minerals Excalibur Minerals Exceptional Minerals Fabre Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club Wrights Rock Shop Translate Tsepinite-K Mineral Data : Ask about Tsepinite-K here : Print or Cut-and-Paste your Tsepinite-K Specimen Label here :
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