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Cebaite-(Ce) (Cebait-(Ce))

Collectors Summary

Color gelb, dunkel gelb
Hardness (Mohs) 4.75
Solubility +++ Säuren
Crystal System monoklin, C2/m

Chemism

Chemical formula

Ba3Ce2(CO3)5F2

Chemical composition

Barium, Cerium, Fluor, Kohlenstoff, Sauerstoff

Unit weight: 1030.2574565 u; Number of atoms in the formula: 27

Info

Empirical formula:

Ba3Ce2(CO3)5F2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Carbon

C

5.83

5

18.52

12.0107800

60.0539000
Oxygen

O

23.29

15

55.56

15.9994300

239.9914500
Fluorine

F

3.69

2

7.41

18.9984033

37.9968065
Barium

Ba

39.99

3

11.11

137.3277000

411.9831000
Cerium

Ce

27.20

2

7.41

140.1161000

280.2322000

Analysis wt%

Ø CaO : 1.07, SrO : 1.12, BaO : 42.53, Al2O3 : 0.50, La2O3 : 9.50, Ce2O3 : 15.68, Pr2O3 : 1.41, Nd2O3 : 4.11, SiO2 : 1.04, CO2 : 18.93, F : 3.57, Ln2O3 : 31.36 (Ref: Geochimica,73)

Strunz 9th edition incl. updates

5.BD.15

5: Carbonate (Carbonate, Nitrate)
B: Carbonate mit weitere Anionen, ohne H2O
D: Mit Selten-Erden-Elementen (REE)
15:Cebait

Lapis Classification

V/C.07-150

V: NITRATE, CARBONATE UND BORATE
C: Wasserfreie Carbonate, mit fremden Anionen
7: Bastnäsit-Gruppe

Classification by Hölzel

5.BD.500

5: CARBONATES NITRATES ARSENITES SULFITES SELENITES TELLURITES IODATES
B: Carbonates (+Anions -Water)
D: Carbonates with Rare Earth Elements
5: F/CO3 >0.25 & <0.5 Cebait-Group

Dana 8th edition

16a.01.09.01

16a: Carbonates - Hydroxyl or Halogen
01: Carbonates - Hydroxyl or Halogen in the Bastnasite/Shynchysite/Parasite Groups

IMA status

zurückgezogen

Optical Properties

Color

gelb, dunkel gelb

max. Birefringence

0.143
Birefringence chart\! Cebaite-(Ce) title=Birefringence chart Cebaite-(Ce)

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.601

RI value β

1.735

RI value γ / ε

1.744

Ri mean

1.693

2V angle

Biaxial (-) 5°~

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell parameters a (Å)

21.426

Cell parameters b (Å)

5.035

Cell parameters c (Å)

13.240

Cell parameters a/b or c/a

4.255

Cell parameters c/b

2.630

Cell parameters α

90°

Cell parameters β

94.62

Cell parameters γ

90°

Z

4

Volume (ų)

1423.689

X-Ray Powder Diffraction

3.98(80),
3.25(100),
2.52(30),
2.35(30),
2.20(40),
2.11(80),
1.99(90),
1.26(30)
XRD chart Cebaite-(Ce)

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

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

4.75

VHN (Hardness Vickers)

340 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.8

4.806 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

China/Innere Mongolei (Neimenggu)/Baotou/Vereinigtes Darhan-Mumingan-Banner/Bayan Obo/Bayan Obo SE-Fe-Nb-Lagerstätte

Preface

Author (Name, Year)

Zhang & Tao, 1983

References

Mineralogy and Petrology 70 (2000), 221

Other languages

German

Cebait-(Ce)

English

Cebaite-(Ce)

French

Cebaite-(Ce)

Spanish

Cebaíta-(Ce)

Russian

Цебаит-(Ce)

Simplified Chinese

氟碳铈钡矿

CNMNC symbol

Symbol

Ceb-Ce

Locations with GPS information

IDs

GUSID (Global unique identifier short form) rTDkLGtF0Uidroyl6KEY-A
GUID (Global unique identifier) 2CE430AD-456B-48D1-9DAE-8CA5E8A118F8
Database ID 638