Paratsepinite-Na Mineral Data

Paratsepinite-Na Mineral Data

[Express Minerals] [Minerals for Sale] [About Us] [En EspaÃƒï¿½Ã‚Â±ol] [Mineral Gallery]
Fabre Minerals - Europe's first Internet mineral dealer, on the web since 1996

General Paratsepinite-Na Information

Chemical Formula:

(Na,Sr,K,Ca)7(Ti,Nb)8[Si4O12]4(O,OH)8·n(H2O) n ~ 8

Composition:

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

Empirical Formula:

7(Na_0.6)7(Sr_0.3)7(K_0.1)7(Ca_0.05)8(Ti_0.75)8(Nb_0.25)4(Si₄)4(O₁₂)O₆(OH)₂·8(H₂O)

Environment:

Labuntsovite group

IMA Status:

Proposed IMA 2003 (Dana # Added)

Locality:

Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals and Mineral Names (CNMMN)

Synonym:

IMA2003-008

Search for Paratsepinite-Na Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Paratsepinite-Na Crystallography

Axial Ratios:

a:b:c =1.0243:1:1.1124

Cell Dimensions:

a = 14.596, b = 14.249, c = 15.852, Z = 3; beta = 117.27° V = 2,930.45 Den(Calc)= 3.89

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 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

Color:

Colorless.

Diaphaniety:

Transparent

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Paratsepinite-Na

Gladstone-Dale:

CI calc= 0.297 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1789,KC= 0.2543

Optical Data:

Biaxial (+), a=1.657, b=1.666, g=1.765, bire=0.1080

Calculated Properties of Paratsepinite-Na

Electron Density:

r_electron=3.79 gm/cc
note: r_{Paratsepinite-Na}=3.89 gm/cc.

Fermion Index

Fermion Index = 0.03128
Boson Index = 0.96872

Photoelectric:

PE_{Paratsepinite-Na}= 23.63 barns/electron
U=PE_{Paratsepinite-Na} x r_electron= 89.58 barns/cc.

Radioactivity:

GRapi = 16.85 (Gamma Ray American Petroleum Institute Units)

Estimated Radioactivity from Paratsepinite-Na - barely detectable

Paratsepinite-Na Classification

Dana Class:

60.1.3e.4 (60)Cyclosilicate Four-Membered Rings

(60.1)as Titanosilicates

(60.1.3e)Labuntsovite Group (Labuntsovite subgroup Monoclinic [C2/m])

60.1.3e.1 Labuntsovite-Mn! Na4K4(Ba,K)(Mn,Fe)1x(Ti,Nb)8[Si4O12]4(O,OH)8·n(H2O),n=10-12 I2/m 2/m

60.1.3e.2 Labuntsovite-Mg! Na4K4(Ba,K)(Mg,Fe)1xTi8(Si4O12)4(O,OH)8·10(H2O) C 2/m 2/m

60.1.3e.3 Labuntsovite-Fe! Na4K4(Ba,K)2(Fe,Mg,Mn)1xTi8(Si4O12)4(O,OH)8·10(H2O) C 2/m 2/m

60.1.3e.4 Paratsepinite-Na ! (Na,Sr,K,Ca)7(Ti,Nb)8[Si4O12]4(O,OH)8·n(H2O)n~8 C 2/m 2/m

60.1.3e.5 Gjerdingenite-Mn! (K,Na)2(Mn,Fe)(Nb,Ti)4(Si4O12)2(O,OH)4·6(H2O) C 2/m 2/m

Strunz Class:

VIII/EX.00-00 VIII - Silicates

VIII/EX - Unclassified Strunz Cyklosilicates

VIII/EX.00 - Labuntsovite Group

Other Paratsepinite-Na Information

See Also:

Links to other databases for Paratsepinite-Na :
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

Search for Paratsepinite-Na using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Paratsepinite-Na :
AA Mineral Specimens
B and L Minerals
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Minernet.it
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Paratsepinite-Na Mineral Data :

Ask about Paratsepinite-Na here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Paratsepinite-Na Specimen Label here :

Paratsepinite-Na

(Na,Sr,K,Ca)7(Ti,Nb)8[Si4O12]4(O,OH)8·n(H2O) n ~ 8
Dana No: 60.1.3e.4 Strunz No: VIII/EX.00-00
Locality:

Notes: