'._('einklappen').'
 

Françoisite-(Ce)

Pictures (1 Images total)

Françoisit-(Ce)
Views (Image: 1583606983): 60
Françoisit-(Ce)

gelbe, taflige Kristalle von Françoisit-(Ce), Mt. Painter No. 2 workings, Flinders Ranges, South Australia, Australien; BB < 1 mm, analysiert

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-03-07
Locality: Number 2 Workings / Mt Painter / Arkaroola / North Flinders Ranges / Flinders Ranges / South Australia / Australien

Collectors Summary

Hardness (Mohs) 3
Cleavages häufig (010)
Fracture uneben
Crystal System monoklin, P21/c

Chemism

Chem­ical formula

(Ce,Nd,Ca)[(UO2)3O(OH)(PO4)2]·6H2O

Addi­tional chem. informa­tion

Verwandt mit der Phosphuranylit Gruppe

Chem­ical com­po­si­tion

Calcium, Cerium, Neodymium, Phosphor, Sauerstoff, Uran, Wasserstoff

Unit weight: 1272.4754324 u; Number of atoms in the formula: 41

Info

Empirical formula:

(Ce0.6Nd0.3Ca0.1)[(UO2)3O(OH)(PO4)2]·6H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.03

13

31.71

1.0079470

13.1033110

Oxygen

O

27.66

22

53.66

15.9994300

351.9874600

Phosphorus

P

4.87

2

4.88

30.9737612

61.9475224

Calcium

Ca

0.31

0.1

0.24

40.0784000

4.0078400

Cerium

Ce

6.61

0.6

1.46

140.1161000

84.0696600

Neodymium

Nd

3.40

0.3

0.73

144.2430000

43.2729000

Uranium

U

56.12

3

7.32

238.0289130

714.0867390

Anal­y­sis wt%

P2O5 : 10.16, SiO2 : 0.48, Al2O3 : 0.42, UO3 : 68.87, Y2O3 : 0.49, La2O3 : 1.34, Ce2O3 : 3.76, Pr2O3 : 0.73, Nd2O3 : 2.79, Sm2O3 : 0.67, PbO : 1.61, CaO : 0.74, H2O : 9.20, Ln2O3 : 9.84 (Ref: American Mineralogist 2010)

Strunz 9th edi­tion incl. updates

8.EC.05

8: Phosphate, Arsenate, Vanadate
E: Uranylphosphate und Arsenate
C: UO2:RO4 = 3:2
05:Upalit-Gruppe

Lapis Clas­sifica­tion

VII/E.07-065

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
E: Uranyl-Phosphate/Arsenate und Uranyl-Vanadate mit [UO2] 2+- [PO4]/[AsO4] 3- und [UO2] 2+-[V2O8] 6-, sowie isotype Vanadate (Sincosit-Reihe)

Clas­sifica­tion by Hölzel

8.EC.585

8: PHOSPHATES ARSENATES VANADATES
E: Uranyl (Phospates-Arsenates-Vanadates)
C: Monoclinic Uranyl (Phosphates-Arsenates)
5: C large, V=2,3 Dumontite-Group

IMA sta­tus

anerkannt 2004

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

max. Birefrin­gence

0.010

Birefringence chart\! Françoisite-(Ce) title=Birefringence chart Françoisite-(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

1.750

Ri mean

1.750

2V angle

Biaxial (-) nd

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/c

Cell param­e­ters a (Å)

9.295

Cell param­e­ters b (Å)

15.53

Cell param­e­ters c (Å)

13.718

Cell param­e­ters a/b or c/a

0.599

Cell param­e­ters c/b

0.883

Cell param­e­ters α

90°

Cell param­e­ters β

112.38

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

1831.06

X-Ray Pow­der Diffrac­tion

7.76(100), 5.77(60), 4.42(30), 4.37(30), 3.87(60), 3.43(70), 3.14(80), 2.038(40)

XRD chart Françoisite-(Ce)

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

Crystals 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

3

VHN (Hard­ness Vick­ers)

83 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.62 (berechnet)

4.616 ( ρ calc. Mineralienatlas )

Cleav­ages

häufig (010)

Frac­ture

uneben

Tenac­ity

spröde

Radioac­tiv­ity

das Mineral ist radioaktiv!

(Co-)Type locality

(Co-)Type locality

Australien/South Australia/Flinders Ranges/North Flinders Ranges/Arkaroola/Mt Painter/Radium Ridge

Schweiz/Wallis, Kanton/Saint-Maurice, Bezirk/Salvan/La Creusaz/Uranprospekt

Type mate­r­ial

Musee Geologique, UNIL-Anthropole, Lausanne, Schweiz

Col­lec­tion number of type mate­r­ial

MGL#68321 (La Creuasz) MGL#79288 (Radium Ridge)

Preface

Author (Name, Year)

N. Meissner et al. (2010)

References

N. Meissner et al., Am. Mineral. 95 (2010) S.1527-1532.

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

Françoisite-(Ce)

(Ce,Nd,Ca)[(UO2)3O(OH)(PO4)2]·6H2O

monoklin : 2/m : P21/c

8.EC.05

Françoisite-(Nd)

(Nd,Y,Sm,Ce)(UO2)3(PO4)2O(OH)·6H2O

monoklin : 2/m : P21/c

8.EC.05

Mundite

Al(UO2)3(PO4)2(OH)3.5·5H2O

orthorhombisch : mm2, mmm : P21cn, Pmcn

8.EC.05

Phuralumite

Al2[(UO2)3(PO4)2O(OH)](OH)3(H2O)9

monoklin : 2/m : P21/a

8.EC.05

Upalite

Al(UO2)3(PO4)2O(OH)·7H2O

monoklin : 2/m : P21/a

8.EC.05

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

Phuralumite

Al2[(UO2)3(PO4)2O(OH)](OH)3(H2O)9

monoklin : 2/m : P21/a

VII/E.07-010

Mundite

Al(UO2)3(PO4)2(OH)3.5·5H2O

orthorhombisch : mm2, mmm : P21cn, Pmcn

VII/E.07-020

Yingjiangite

(K2,Ca)(UO2)7(PO4)4(OH)6·6H2O

orthorhombisch : mmm : Bmmb

VII/E.07-025

Phosphuranylite

KCa(H3O)3(UO2)7(PO4)4O4·8H2O

orthorhombisch : mmm : Cmcm

VII/E.07-030

Phurcalite

Ca2(UO2)3O2(PO4)2·7H2O

orthorhombisch : mmm : Pbca

VII/E.07-040

Arsenuranylite

Ca(UO2)4(AsO4)2(OH)4·6H2O

orthorhombisch : mmm : Bmmb

VII/E.07-050

Bergenite

Ca2Ba4(UO2)9O6(PO4)6·16H2O

monoklin : 2/m : P21/c

VII/E.07-060

Françoisite-(Ce)

(Ce,Nd,Ca)[(UO2)3O(OH)(PO4)2]·6H2O

monoklin : 2/m : P21/c

VII/E.07-065

Françoisite-(Nd)

(Nd,Y,Sm,Ce)(UO2)3(PO4)2O(OH)·6H2O

monoklin : 2/m : P21/c

VII/E.07-070

Dewindtite

Pb3[H(UO2)3O2(PO4)2]2·12H2O

orthorhombisch : mmm : Bmmb

VII/E.07-080

Dumontite

Pb2(UO2)3O2(PO4)2·5H2O

monoklin : 2/m : P21/m

VII/E.07-090

Hügelite

Pb2(UO2)3(AsO4)2(OH)4·3H2O

monoklin : 2/m : P21/m

VII/E.07-100

Kamitugaite

PbAl(UO2)5[(P,As)O4]2(OH)9·5H2O

triklin : 1, 1 : P1, P1

VII/E.07-110

'Kivuite'

(Th,Ca,Pb)(UO2)4(PO3OH)2(OH)8·7(H2O)

VII/E.07-120

Althupite

ThAl(UO2)7(PO4)4(OH)5·15H2O

triklin : 1 : P1

VII/E.07-130

Nielsbohrite

K(UO2)3(AsO4)(OH)4·H2O

orthorhombisch : mmm : Cccm

VII/E.07-135

Vanmeersscheite

U6+(UO2)3(PO4)2(OH)6·4H2O

orthorhombisch : mm2 : P21mn

VII/E.07-140

Metavanmeersscheite

U6+(UO2)3(PO4)2(OH)6·2H2O

orthorhombisch : mmm : Fddd

VII/E.07-150

Arsenovanmeersscheite

U(OH)4[(UO2)3(AsO4)2(OH)2]·4H2O

orthorhombisch : mm2 : P21mn

VII/E.07-160

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

Bergenite

Ca2Ba4(UO2)9O6(PO4)6·16H2O

monoklin : 2/m : P21/c

8.EC.500

Metauranocircite-II

Ba(UO2)2(PO4)2·6H2O

monoklin : 2/m : P21/a

8.EC.520

Dumontite

Pb2(UO2)3O2(PO4)2·5H2O

monoklin : 2/m : P21/m

8.EC.540

Hügelite

Pb2(UO2)3(AsO4)2(OH)4·3H2O

monoklin : 2/m : P21/m

8.EC.550

Françoisite-(Nd)

(Nd,Y,Sm,Ce)(UO2)3(PO4)2O(OH)·6H2O

monoklin : 2/m : P21/c

8.EC.580

Françoisite-(Ce)

(Ce,Nd,Ca)[(UO2)3O(OH)(PO4)2]·6H2O

monoklin : 2/m : P21/c

8.EC.585

Other languages

German

Françoisit-(Ce)

English

Françoisite-(Ce)

Russian

Франкоисит-(Ce)

IMA Number

IMA 2004-029

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

German pages

DeWikiPedia - search for: Françoisit-(Ce)
Google-Bilder-Suche - search for: Françoisit-(Ce)
Mineralogisch-Petrographisches-Institut Hamburg - search for: Françoisit-(Ce)

English pages

Mindat - search for: Françoisite-(Ce)
Webmineral - search for:Françoisite-(Ce)
Handbook-of-Mineralogy - search for: Françoisite-(Ce)
RRUFF - Raman, XRD and other mineral data - search for: Françoisite-(Ce)
RRUFF - References and PDF downloads - search for: Françoisite-(Ce)
American-Mineralogist-Crystal-Structure-Database - search for: Françoisite-(Ce)
Athena - search for: Françoisite-(Ce)

Russian pages

Webmineral.ru - search for: Франкоисит-(Ce)

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Françoisit-(Ce)
Crystal-Treasure.com - search for: Françoisit-(Ce)
Bosse - search for: Françoisit-(Ce)



Notice: "Undefined variable: ub"