Cesstibtantite Mineral Data
General Cesstibtantite Information
Chemical Formula:
(Cs,Na)SbTa4O12
Composition:
Molecular Weight = 579.81 gm
Cesium 6.88 % Cs 7.29 % Cs2 O
Sodium 1.19 % Na 1.60 % Na2 O
Tantalum 59.30 % Ta 72.40 % Ta2 O5
Niobium 1.60 % Nb 2.29 % Nb2 O5
Antimony 12.60 % Sb 15.08 % Sb2 O3
Hydrogen 0.12 % H 1.09 % H2 O
Oxygen 17.66 % O
Fluorine 0.66 % F 0.66 % F
- %
F -0.28 % -O=F2
______ ______
100.00 % 100.14 % = TOTAL OXIDE
Empirical Formula:
Cs0.3 (OH)0.7 Sb0.6 Na0.3 Ta1.9 Nb0.1 O5.7 F0.2
Environment:
Highly fractionated granite pegmatites.
IMA Status:
Approved IMA 1982
Locality:
Leshaia pegmatite, Vuoriyarvi carbonatite complex, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Name Origin:
Named for CESium, antimony (STIBium), and TANTalum in the composition.
Synonym:
ICSD 74283
PDF 35-672
Cesstibtantite Image
Images:
Cesstibtantite
Comments: Flesh-coloured simpsonite (blue scheelite-like UV luminescention) crystal partially replaced with grey cesstibtantite (orange UV luminescention)..
Location: Vasin-Myl'k Mt, Voron'i Tundry, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia.
Scale: Specimen size is 6x5x2 cm.
© Pavel M. Kartashov
Cesstibtantite Crystallography
Cell Dimensions:
a = 10.256, Z = 7; V = 1,078.78 Den(Calc)= 6.25
Crystal System:
Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
X Ray Diffraction:
By Intensity(I/Io ): 1.587(1), 1.84(1), 3.04(1),
Physical Properties of Cesstibtantite
Cleavage:
None
Color:
Colorless, Gray, Yellow orange, Black.
Density:
6.4 - 6.6, Average = 6.5
Diaphaneity:
Transparent to Opaque
Fracture:
Brittle - Uneven - Very brittle fracture producing uneven fragments.
Habit:
Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Hardness:
6.5 - Pyrite
Luminescence:
Fluorescent and cathodoluminescent, Long UV=yellow orange.
Luster:
Vitreous - Adamantine
Streak:
white
Optical Properties of Cesstibtantite
Gladstone-Dale:
CI meas = 0.239 (Poor) - where the CI = (1-KPDmeas /KC ) CI calc = 0.209 (Poor) - where the CI = (1-KPDcalc /KC )
KPDcalc = 0.128,KPDmeas = 0.1231,KC = 0.1618 Ncalc = 2.01 - 2.07
Optical Data:
Isotropic, n=1.8.
Reflectivity
Standardized Intensity (100%) Reflection Spectra of Cesstibtantite in Air
λ
R
∑ R (λ)
480 nm
13.80
551 nm
13.60
589 nm
13.60
656 nm
13.00
Calculated Relative Intensity Colors of Cesstibtantite in Air
Relative Intensity
0%
70%
100%
140%
210%
280%
350%
420%
490%
560%
630%
660%
R
Calculated Properties of Cesstibtantite
Electron Density:
Bulk Density (Electron Density)=5.32 gm/cc note: Specific Gravity of Cesstibtantite =6.25 gm/cc.
Fermion Index:
Fermion Index = 0.0001561061 Boson Index = 0.9998438939
Photoelectric:
PECesstibtantite = 793.94 barns/electronU=PECesstibtantite x r Electron Density=4,226.01 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Cesstibtantite is Not Radioactive
Cesstibtantite Classification
Dana Class:
08.02.04.01 (08) Multiple Oxides with Nb, Ta, and Ti
(08.02) where (A)2 (B2O6) (O,OH,F)
(08.02.04) Pyrochlore Group (Cesstibtantite Subgroup; (Na,Cs)(Bi,Sb)(Ta,Nb)4O12
08.02.04.01 Cesstibtantite (Cs,Na)SbTa4O12 F d3m 4/m 3 2/m
08.02.04.02 Natrobistantite (Na,Cs)Bi(Ta,Nb,Sb)4O12 F d3m 4/m 3 2/m
Strunz Class:
04.DH.15 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
04.D - Metal:Oxygen = 1:2 and similar
04.DH -With large (� medium-sized) cations; sheets of edge-sharing octahedra
04.DH.15 Alumotungstite (W,Al)(O,OH)3(?) Unk Cubic
04.DH.15 Betafite (Ca,U)2(Ti,Nb,Ta)2O6(OH) F d3m 4/m 3 2/m
04.DH.15 Ferritungstite (K,Ca,Na)(W,Fe)2(O,OH)6•(H2O) F d3m 4/m 3 2/m
04.DH.15 Cesstibtantite (Cs,Na)SbTa4O12 F d3m 4/m 3 2/m
04.DH.15 Bismutomicrolite (Bi,Ca)(Ta,Nb)2O6(OH) F d3m 4/m 3 2/m
04.DH.15 Ceriopyrochlore-(Ce) (Ce,Ca,Y)2(Nb,Ta)2O6(OH,F) F d3m 4/m 3 2/m
04.DH.15 Bariopyrochlore (Ba,Sr)(Nb,Ti)2(O,OH)7 F d3m 4/m 3 2/m
04.DH.15 Bariomicrolite Ba(Ta,Nb)2(O,OH)7 F d3m 4/m 3 2/m
04.DH.15 Calciobetafite Ca2(Ti,Nb)2(O,OH)7 F d3m 4/m 3 2/m
04.DH.15 Jixianite Pb(W,Fe)2(O,OH)7 F d3m 4/m 3 2/m
04.DH.15 Plumbomicrolite (Pb,Ca,U)2Ta2O6(OH) F d3m 4/m 3 2/m
04.DH.15 Kalipyrochlore (H2O,Sr)(Nb,Ti)(O,OH)6•(H2O,K) F d3m 4/m 3 2/m
04.DH.15 Plumbopyrochlore (Pb,Y,U,Ca)2-xNb2O6(OH) F d3m 4/m 3 2/m
04.DH.15 Strontiopyrochlore * Sr2Nb2(O,OH)7 F d3m 4/m 3 2/m
04.DH.15 Uranmicrolite (U,Ca)2(Ta,Nb)2O6(OH) F d3m 4/m 3 2/m
04.DH.15 Pyrochlore (Na,Ca)2Nb2O6(OH,F) F d3m 4/m 3 2/m
04.DH.15 Microlite (Na,Ca)2Ta2O6(O,OH,F) F d3m 4/m 3 2/m
04.DH.15 Natrobistantite (Na,Cs)Bi(Ta,Nb,Sb)4O12 F d3m 4/m 3 2/m
04.DH.15 Plumbobetafite (Pb,U,Ca)(Ti,Nb)2O6(OH,F) F d3m 4/m 3 2/m
04.DH.15 Stibiomicrolite (Sb,Ca,Na)2(Ta,Nb)2(O,OH)7 F d3m 4/m 3 2/m
04.DH.15 Stannomicrolite (Sn,Fe,Mn)(Ta,Nb,Sn)2(O,OH)7 F d3m 4/m 3 2/m
04.DH.15 Stibiobetafite (Sb,Ca)2(Ti,Nb,Ta)2(O,OH)7 F d3m 4/m 3 2/m
04.DH.15 Uranpyrochlore (U,Ca,Ce)2(Nb,Ta)2O6(OH,F) F d3m 4/m 3 2/m
04.DH.15 Bismutopyrochlore ! (Bi,U,Ca,Pb)1x(Nb,Ta)2O6(OH)•n(H2O) F d3m 4/m 3 2/m
04.DH.15 Fluornatromicrolite ! (Na,Ca,Bi)2Ta2O6F F d3m 4/m 3 2/m
04.DH.15 Yttrobetafite-(Y) (Y,U,Ce)2(Ti,Nb,Ta)2O6(OH) F d3m 4/m 3 2/m
04.DH.15 Yttropyrochlore-(Y) (Y,Na,Ca,U)1-2(Nb,Ta,Ti)2(O,OH)7 F d3m 2/m 3
04.DH.15 Elsmoreite ! WO3•0.5(H2O) F d3m 4/m 3 2/m
Other Cesstibtantite Information
References:
NAME( AntBidBlaNic3) PHYS. PROP.(AntBidBlaNic3) OPTIC PROP.(AntBidBlaNic3)
See Also:
Links to other databases for Cesstibtantite :
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
15 - WWW-MINCRYST
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Cesstibtantite
(Cs,Na)SbTa4O12
Dana No: 08.02.04.01 Strunz No: 04.DH.15
Locality:
Notes:
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