Senekevichite Mineral Data

Senekevichite Mineral Data

[What's New] [Mineral Galleries] [Sale Items] [About Us] [Contacts]
At AA Mineral Specimens, we source quality Mineral Specimens, Fossils, Gemstones,
Decorative Stones, Lapidary Material and Specimen Sets world-wide

General Senekevichite Information

Chemical Formula:

CsKNaCa2TiO[Si7O18(OH)]

Composition:

Molecular Weight = 817.63 gm

Cesium 16.25 % Cs 17.23 % Cs₂O

Potassium 4.78 % K 5.76 % K₂O

Calcium 9.80 % Ca 13.72 % CaO

Titanium 5.86 % Ti 9.77 % TiO₂

Silicon 24.04 % Si 51.44 % SiO₂

Hydrogen 0.12 % H 1.10 % H₂O

Oxygen 39.14 % O

______ ______

100.00 % 99.02 % = TOTAL OXIDE

Empirical Formula:

CsKCa₂TiOSi₇O₁₈(OH)

Environment:

Cs-dominant analogue of tinaksite

IMA Status:

Proposed IMA 2004 (Dana # Added)

Locality:

Dara-i-Pioz glacier, Tajikistan Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals and Mineral Names (CNMMN)

Synonym:

IMA2004-017

Search for Senekevichite 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.

Senekevichite Crystallography

Axial Ratios:

a:b:c =0.8511:1:0.5765

Cell Dimensions:

a = 10.4191, b = 12.2408, c = 7.0569, Z = 2; alpha = 90.857°, beta = 99.193°, gamma = 91.895° V = 887.88 Den(Calc)= 3.06

Crystal System:

Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1

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

By Intensity(I/I_o): 3.06(1), 3.14(0.21), 2.959(0.2),2.038(0.17), 3.25(0.16), 4.08(0.13), 3.33(0.11),

Optical Properties of Senekevichite

Optical Data:

NCalc= 1.64 - from Gladstone-Dale relationship (KC = 0.2097) where Ncalc=Dcalc*KC+1

Calculated Properties of Senekevichite

Electron Density:

r_electron=2.96 gm/cc
note: r_{Senekevichite}=3.06 gm/cc.

Fermion Index

Fermion Index = 0.01912
Boson Index = 0.98088

Photoelectric:

PE_{Senekevichite}= 67.78 barns/electron
U=PE_{Senekevichite} x r_electron= 200.41 barns/cc.

Radioactivity:

GRapi = 66.67 (Gamma Ray American Petroleum Institute Units)

Estimated Radioactivity from Senekevichite - barely detectable

Senekevichite Classification

Dana Class:

67.2.1.3 (67)Inosilicate Unbranched Chains with W>2

(67.2)with W=5

(67.2.1)Tinaksite group

67.2.1.1 Tinaksite K2Na(Ca,Mn)2(Ti,Fe)O[Si7O18(OH)] P1,P 1 Tri

67.2.1.2 Tokkoite K2Ca4[Si7O18(OH)](F,OH) P1 1

67.2.1.3 Senekevichite ! CsKNaCa2TiO[Si7O18(OH)] P1 1

Strunz Class:

VIII/FX.00-00 VIII - Silicates

VIII/FX - Unclassified Strunz Inosilicates

VIII/FX.00 - Tinaksite group

Other Senekevichite Information

See Also:

Links to other databases for Senekevichite :
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 Senekevichite using:

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

Visit our Advertisers for Senekevichite :

AA Mineral Specimens

B & L Fine Minerals

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

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 Senekevichite Mineral Data :

Ask about Senekevichite 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 Senekevichite Specimen Label here :

Senekevichite

CsKNaCa2TiO[Si7O18(OH)]
Dana No: 67.2.1.3 Strunz No: VIII/FX.00-00
Locality:

Notes: