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Cesplumtantite

Collectors Summary

Color farblos
Streak color weiß
Hardness (Mohs) 7
Crystal System tetragonal,

Chemism

Chem­ical formula

(Cs,Na)2(Pb,Sb3+)3Ta8O24

Chem­ical com­po­si­tion

Antimon, Blei, Cäsium, Natrium, Tantal, Sauerstoff

Unit weight: 2599.9652381 u; Number of atoms in the formula: 37

Info

Empirical formula:

(Cs0.75Na0.25)2(Pb0.75Sb0.25)3Ta8O24

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

14.77

24

64.86

15.9994300

383.9863200

Sodium

Na

0.44

0.5

1.35

22.9897702

11.4948851

Antimony

Sb

3.51

0.75

2.03

121.7601000

91.3200750

Caesium

Cs

7.67

1.5

4.05

132.9054520

199.3581780

Tantalum

Ta

55.68

8

21.62

180.9479100

1,447.5832800

Lead

Pb

17.93

2.25

6.08

207.2100000

466.2225000

Anal­y­sis wt%

Ta2O5 : 63.85, Nb2O5 : 3.24, Cs2O : 5.37, Na2O : 0.71, CaO : 0.83, PbO : 20.24, Sb2O3 : 2.88, SnO2 : 1.60 (Ref: Mineralogicheskii Zhurnal 86)

Strunz 9th edi­tion incl. updates

4.DM.15

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
D: Metall: Sauerstoff = 1:2 und vergleichbare
M: Mit großen (± mittelgroßen) [Kationen]; unklassifiziert
15:Cesplumtantit-Gruppe

Lapis Clas­sifica­tion

IV/D.26-060

IV: OXIDE
D: Oxide mit Verhältnis Metall : Sauerstoff = 1:2 (MO2 und verwandte Verbindungen)

Clas­sifica­tion by Hölzel

4.DJ.510

4: OXIDES
D: Dioxides
J: Titanates, Niobates and Tantalates, C large, V medium ò 2
5: Other Niobates, Tantalates

Dana 8th edi­tion

08.07.11.01

08: Multiple Oxides with Nb, Ta, and Ti
07: Multiple Oxides with Nb, Ta, and Ti

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

farblos

Streak color

weiß

2V angle

Uniaxial

Crystallography

Crystal Sys­tem

tetragonal

Cell param­e­ters a (Å)

13.552

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

6.445

Cell param­e­ters a/b or c/a

0.476

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

1183.667

X-Ray Pow­der Diffrac­tion

6.11(50),
3.19(50),
3.054(100),
2.645(50),
2.037(50),
1.869(70),
1.593(70),
1.211(50)

XRD chart Cesplumtantite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

7

VHN (Hard­ness Vick­ers)

1240 (40g)

Density (g/cm³)

6.87 (berechnet)

7.294 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Voloshin & Pakhomovskiy & Bakhchisaraitsev & Devnina, 1986

References

Mineralogicheskiy Zhurnal 8 (1986) (5), 92

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Cesplumtantite

(Cs,Na)2(Pb,Sb3+)3Ta8O24

4.DM.15

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Lithiotantite

Li(Ta,Nb)3O8

monoklin : 2/m : P21/c

IV/D.26-010

Natrotantite

Na2Ta4O11

trigonal : 3m : R3c

IV/D.26-020

Irtyshite

Na2(Ta,Nb)4O11

hexagonal : 6/m, 6 : P63/m, P63

IV/D.26-030

Calciotantite

CaTa4O11

hexagonal : 622 : P6322

IV/D.26-040

Cesplumtantite

(Cs,Na)2(Pb,Sb3+)3Ta8O24

IV/D.26-060

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Irtyshite

Na2(Ta,Nb)4O11

hexagonal : 6/m, 6 : P63/m, P63

4.DJ.500

Cesplumtantite

(Cs,Na)2(Pb,Sb3+)3Ta8O24

4.DJ.510

'Ungursaite'

Ca(Ta,Nb)4O11

hexagonal : 6, 6/m : P63, P63/m

4.DJ.530

Calciotantite

CaTa4O11

hexagonal : 622 : P6322

4.DJ.540

Petscheckite

U4+Fe2+Nb2O8

trigonal : 3m : P31m

4.DJ.560

Liandratite

U6+(Nb,Ta)2O8

trigonal : 3m : P31m

4.DJ.570

Murataite-(Y)

(Y,Na)6(Zn,Fe3+)5(Ti,Nb)12(O,F,OH)43

kubisch : 43m : F43m

4.DJ.580

Changbaiite

PbNb2O6

trigonal : 3m : R3m

4.DJ.590

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Zimbabweite

(Na,K)2PbAs43+(Ta,Nb,Ti)4O18

orthorhombisch : mmm : Ccmb

08.07.10.01

Cesplumtantite

(Cs,Na)2(Pb,Sb3+)3Ta8O24

08.07.11.01

Koragoite

Mn2+2Mn3+Nb2(Nb,Ta)3W2O20

monoklin : 2 : P21

08.07.12.01

Carmichaelite

(Ti,Cr,Fe)(O,OH)2

monoklin : 2/m : P21/c

08.07.13.01

CNMNC (IMA)-Number

IMA 1985-040

CNMNC symbol

Symbol

Cptan

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

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Russian pages

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