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Davidite-(Ce)

Pictures (2 Images total)

Davidit-(Ce)
Views (File:
1651827173
): 197
Davidit-(Ce)
Australien/South Australia/Olary Province/Mingary/Radium Hill Gebiet. Bildbreite 1,2 mm
Copyright: Ulrich Baumgärtl; Contribution: Ulrich Baumgärtl
Collection: Ulrich Baumgärtl
Location: Australien/South Australia/Olary Province/Mingary/Radium Hill Gebiet
Mineral: Davidite-(Ce)
Image: 1651827173
License: Usage for Mineralienatlas project only
Davidit-(Ce)

Australien/South Australia/Olary Province/Mingary/Radium Hill Gebiet. Bildbreite 1,2 mm
Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2022-05-06
Locality: Radium Hill Gebiet / Mingary / Olary Province / South Australia / Australien
Davidit-(Ce)
Views (File:
1651827310
): 112
Davidit-(Ce)
Australien/South Australia/Olary Province/Mingary/Radium Hill Gebiet. Bildbreite 1,3 mm
Copyright: Ulrich Baumgärtl; Contribution: Ulrich Baumgärtl
Collection: Ulrich Baumgärtl
Location: Australien/South Australia/Olary Province/Mingary/Radium Hill Gebiet
Mineral: Davidite-(Ce)
Image: 1651827310
License: Usage for Mineralienatlas project only
Davidit-(Ce)

Australien/South Australia/Olary Province/Mingary/Radium Hill Gebiet. Bildbreite 1,3 mm
Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2022-05-06
Locality: Radium Hill Gebiet / Mingary / Olary Province / South Australia / Australien

Collectors Summary

Color schwarz-met.
Streak color grauschwarz
Hardness (Mohs) 6
Solubility - Säuren
Crystal System trigonal, R3

Chemism

Chemical formula

(Ce,La,U,Y)2Fe3+2(Ti,Fe3+)18O38

Chemical composition

Cerium, Eisen, Lanthanum, Titan, Yttrium, Sauerstoff, Uran

Unit weight: 1911.1453798 u; Number of atoms in the formula: 60

Info

Empirical formula:

(Ce0.55La0.3U0.1Y0.05)2Fe2(Ti0.75Fe0.25)18O38

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

31.81

38

63.33

15.9994300

607.9783400
Titanium

Ti

33.81

13.5

22.50

47.8671000

646.2058500
Iron

Fe

18.99

6.5

10.83

55.8452000

362.9938000
Yttrium

Y

0.47

0.1

0.17

88.9058520

8.8905852
Lanthanum

La

4.36

0.6

1.00

138.9055200

83.3433120
Cerium

Ce

8.06

1.1

1.83

140.1161000

154.1277100
Uranium

U

2.49

0.2

0.33

238.0289130

47.6057826

Strunz 9th edition incl. updates

4.CC.40

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
C: Metall: Sauerstoff = 2: 3,3: 5, und vergleichbare
C: Mit großen und mittelgroßen Kationen
40:Crichtonit-Gruppe

Lapis Classification

IV/C.09-090

IV: OXIDE
C: Oxide mit Verhältnis Metall : Sauerstoff = 2:3 (M2O3 und verwandte Verbindungen)
9: Crichtonit-Gruppe

Classification by Hölzel

4.CE.510

4: OXIDES
C: R2O3 Sesquioxides
E: Other complex Oxides, mostly hextrig
5: Davidite-Group

Dana 8th edition

08.05.01.06

08: Multiple Oxides with Nb, Ta, and Ti
05: Multiple Oxides with Nb, Ta, and Ti
01: Crichtonite group (ABC18 T2 O38)

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Crichtonite Group

Optical Properties

Color

schwarz-met.

Streak color

grauschwarz

max. Birefringence

metamict

RI value α / ω / n

2.3

RI value β

metam.

Crystallography

Crystal System

trigonal

Class (H-M)

3

Space Group number

148

Space Group

R3

Cell parameters a (Å)

10.28

Cell parameters b (Å)

-

Cell parameters c (Å)

20.81

Cell parameters a/b or c/a

2.024

Cell parameters c/b

-

Z

3

Volume (ų)

1904.535

X-Ray Powder Diffraction

3.42(70),
3.065(50),
3.000(40),
2.895(100),
2.850(60),
2.139(40),
1.601(40),
1.439(40)
XRD chart Davidite-(Ce)

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

Physical Properties

Hardness (Mohs)

6

VHN (Hardness Vickers)

855 (100g)

Density (g/cm³)

4.92 (berechnet)

4.999 ( ρ calc. Mineralienatlas )

Instability

- Säuren

(Co-)Type locality

(Co-)Type locality

Norwegen/Agder, Provinz/Iveland/Frigstad/Tuftane

Preface

Author (Name, Year)

Levinson, 1966

Safety Instructions

Industrial chemicals are often present in powder form and therefore often contain much higher dangers than natural, crystalline substances. These hazard statements refer to the classification of industrially used chemical compounds that may also occur in this natural mineral. The hazard classification makes no claim to completeness.




Safety classes: Ionizing radiation: Radioaktiv

References

American Mineralogist 51 (1966), 152

IMA group assignments

 
Crichtonite Group
 
 
 

 
 
Almeidaite
PbZn2(Mn,Y)(Ti,Fe3+)18O36(OH,O)2
trigonal
R3

 
 
Antipinite
KNa3Cu2(C2O4)4
triklin
P1

 
 
Botuobinskite
SrFe2+(Ti4+12Cr3+6)Mg2[O36(OH)2]
trigonal
R3

 
 
Cleusonite
(Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38
trigonal
R3

 
 
Crichtonite
(Sr,Pb)(Mn,Fe)Fe3+2(Ti,Fe3+)18O38
trigonal
R3

 
 
Davidite-(Ce)
(Ce,La,U,Y)2Fe3+2(Ti,Fe3+)18O38
trigonal
R3

 
 
Davidite-(La)
La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
trigonal
R3

 
 
Dessauite-(Y)
(Sr,Pb)(Y,U)Fe3+2(Ti,Fe3+)18O38
trigonal
R3

 
 
Gramaccioliite-(Y)
(Pb,Sr)(Y,Mn)(Fe3+)2(Ti,Fe3+)18O38
trigonal
R3

 
 
Landauite
(Na,Pb)(Mn2+,Y)(Zn,Fe)2(Ti,Fe3+,Nb)18(O,OH,F)O38
trigonal
R3

 
 
Lindsleyite
(BaSr)Zr(Fe3+,Mg)2(Ti,Cr,Fe3+)18O38
trigonal
R3

 
 
Loveringite
(Ca,Ce)(Zr,Mg)(Ti,Fe3+)2(Ti,Cr,Fe3+)18O38
trigonal
R3

 
 
Mapiquiroite
(Sr,Pb)(U,Y)Fe2(Ti,Fe3+,Cr3+)18O38
trigonal
R3

 
 
Mathiasite
K(Zr,Ca)(Fe3+,Mg)2(Ti,Cr,Fe3+)18O38
trigonal
R3

 
 
Mianningite
(☐,Pb,Ce,Na)(U4+,Mn,U6+)Fe3+2(Ti,Fe3+)18O38
trigonal
R3

 
 
Mirnyite
SrZr4+(Ti4+12Cr3+6)Mg2O38
trigonal
R3

 
 
Paseroite
PbMn2+(Mn2+,Fe2+)2(V5+,Ti,Fe3+,☐)18O38
triklin
R3

 
 
Romanite ?
(Fe2+,U,Pb)2(Ti,Fe3+)O4
 
 

 
 
Saranovskite
SrCaFe2+2(Cr4Ti2)Ti12O38
trigonal
R3

 
 
Senaite
Pb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38
trigonal
R3

 
 
Unnamed (HBU UK-4)
NaFe2+Zn2(Ti,Fe3+,Nb)6Ti12O38
trigonal
R3

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Actuality: 03. Dec 2024 - 06:02:40

Other languages

German

Davidit-(Ce)

Spanish

Davidita-(Ce)

English

Davidite-(Ce)

French

Davidite-(Ce)

Russian

Давидит-(Ce)

Japanese

ｾﾘｳﾑﾀﾞﾋﾞｯﾄﾞ石

CNMNC symbol

Symbol

Dvd-Ce

Locations with GPS information

IDs

GUSID (Global unique identifier short form) OhdiDZTIN0CP-e4LklasKA
GUID (Global unique identifier) 0D62173A-C894-4037-8FF9-EE0B9256AC28
Database ID 893