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Cesplumtantite Mineral Data

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General Cesplumtantite Information

Help on Chemical  Formula: Chemical Formula: (Cs,Na,Ca)2(Pb,Sb+++,Sn)3Ta8O24
Help on Composition: Composition: Molecular Weight = 2,479.94 gm
   Cesium     4.82 %  Cs    5.11 % Cs2O
   Sodium     0.56 %  Na    0.75 % Na2O
   Calcium    0.65 %  Ca    0.90 % CaO
   Tantalum  52.53 %  Ta   64.15 % Ta2O5
   Niobium    2.25 %  Nb    3.22 % Nb2O5
   Tin        2.87 %  Sn    1.63 % SnO /  1.82 % SnO2
   Antimony   2.45 %  Sb    2.94 % Sb2O3
   Lead      18.38 %  Pb   19.80 % PbO
   Oxygen    15.48 %  O
            ______        ______ 
            100.00 %      100.32 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cs0.9Na0.6Ca0.4Pb2.2Sb0.5Sn0.3Ta7.2Nb0.6Sn0.3O24
Help on Environment: Environment: Veinlets in thoreaulite.
Help on IMA Status: IMA Status: Approved IMA 1986
Help on Locality: Locality: Manono, Shaba, Zaire. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the composition (CESium, PLUMium (lead), and TANTalum).
 

Cesplumtantite Image

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  Cesplumtantite

Comments: Brownish yellow cesplumtantite aggregate grains.
Location: Manono, Shaba, Congo. Scale: See Image.
© Rruff Database

Cesplumtantite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:0.47557
Help on Cell Dimensions: Cell Dimensions: a = 13.552, c = 6.445, Z = 2; V = 1,183.67 Den(Calc)= 6.96
Help on Crystal System: Crystal System: Tetragonal Space Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.054(1), 1.593(0.7), 1.869(0.7),
 

Physical Properties of Cesplumtantite

Help on Cleavage: Cleavage: None
Help on Color: Color: Colorless.
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Hardness: Hardness: 7 - Quartz
Help on Luster: Luster: Adamantine
Help on Streak: Streak: white
 

Optical Properties of Cesplumtantite

Help on Optical Data: Optical Data: Uniaxial (?).
  NCalc= 2.06 - from Gladstone-Dale relationship (KC = 0.1521) where Ncalc=Dcalc*KC+1
Help on RL Anisotrophism: RL Anisotrophism: Strong.
Help on RL Bireflectance: RL Bireflectance: Weak.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Cesplumtantite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 476 nm   18.20   17.10 
   
 553 nm   17.30   16.50 
 589 nm   17.10   16.50 
 656 nm   15.60   15.30 
Calculated Relative Intensity Colors of Cesplumtantite in Air
Relative
Intensity
   0%   60% 100% 120% 180% 240% 300% 360% 420% 480% 540% 550%
R1                        
R2                        
 

Calculated Properties of Cesplumtantite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.85 gm/cc
note: Specific Gravity of Cesplumtantite =6.96 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.04
Boson Index = 0.96
Help on Photoelectric: Photoelectric: PECesplumtantite =1,023.11 barns/electron
U=PECesplumtantite x rElectron Density=5,985.13 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Cesplumtantite is Not Radioactive
 

Cesplumtantite Classification

Help on  Dana Class: Dana Class: 08.07.11.01 (08)Multiple Oxides with Nb, Ta, and Ti
  (08.07)Dana Type
  (08.07.11)Dana Group
 
08.07.11.01 Cesplumtantite (Cs,Na,Ca)2(Pb,Sb,Sn)3Ta8O24 Unk Tetra
Help on  Strunz Class: Strunz Class: 04.DM.15 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.D - Metal:Oxygen = 1:2 and similar
  04.DM -With large (� medium-sized) cations; unclassified
 
04.DM.15 Cesplumtantite (Cs,Na,Ca)2(Pb,Sb,Sn)3Ta8O24 Unk Tetra
 

Other Cesplumtantite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.74,p501,1989) OPTIC PROP.(AntBidBlaNic3)
Help on See Also: See Also: Links to other databases for Cesplumtantite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Print or Cut-and-Paste your Cesplumtantite Specimen Label here :

Cesplumtantite

(Cs,Na,Ca)2(Pb,Sb+++,Sn)3Ta8O24
Dana No: 08.07.11.01 Strunz No: 04.DM.15
Locality:

 

Notes:

 

 
   
 


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