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Lepersonnite-(Gd)

Pictures (3 Images total)

Lepersonnit-(Gd)
Views (File:
1275733105
): 1414
Lepersonnit-(Gd)
Bildbreite: 5 mm; Fundort: Shinkolobwe Mine, Shinkolobwe, Provinz Katanga, Dem. Rep. Kongo
Copyright: Stephan Wolfsried; Contribution: Philip Blümner
Location: Demokratische Republik Kongo/Katanga (Shaba), Provinz/Ober-Katanga (Haut-Katanga), Distrikt/Shinkolobwe (Kasolo)/Shinkolobwe Mine (Kasolo Mine)
Mineral: Lepersonnite-(Gd)
Image: 1275733105
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Lepersonnit-(Gd)

Bildbreite: 5 mm; Fundort: Shinkolobwe Mine, Shinkolobwe, Provinz Katanga, Dem. Rep. Kongo
Copyright: Stephan Wolfsried
Contribution: Philip Blümner 2010-06-05
Locality: Shinkolobwe Mine (Kasolo Mine) / Shinkolobwe (Kasolo) / Ober-Katanga (Haut-Katanga), Distrikt / Katanga (Shaba), Provinz / Demokratische Republik Kongo
Lepersonnite-(Gd)
Views (File:
1475008076
): 584
Lepersonnite-(Gd)
Flattened pale yellow prisms of lepersonnite-Gd with orange becquerelite and studtite (not shown). Field of view: 1 mm; Shinkolobwe Mine, Shinkolobwe, Katanga Copper Crescent, Katanga, Democratic Republic of Congo
Copyright: Travis Olds; Contribution: Stefan
Location: Demokratische Republik Kongo/Katanga (Shaba), Provinz/Ober-Katanga (Haut-Katanga), Distrikt/Shinkolobwe (Kasolo)/Shinkolobwe Mine (Kasolo Mine)
Mineral: Lepersonnite-(Gd)
Image: 1475008076
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Lepersonnite-(Gd)

Flattened pale yellow prisms of lepersonnite-Gd with orange becquerelite and studtite (not shown). Field of view: 1 mm; Shinkolobwe Mine, Shinkolobwe, Katanga Copper Crescent, Katanga, Democratic R...
Copyright: Travis Olds
Contribution: Stefan 2016-09-27
Locality: Shinkolobwe Mine (Kasolo Mine) / Shinkolobwe (Kasolo) / Ober-Katanga (Haut-Katanga), Distrikt / Katanga (Shaba), Provinz / Demokratische Republik Kongo
Lepersonnit-(Gd)
Views (File:
1275729731
): 1140
Lepersonnit-(Gd)
Größe: 2,4 x 2 x 1,5 cm mm, Fundort: Shinkolobwe Mine, Shinkolobwe, Shaba, Dem. Rep. Kongo
Copyright: Rob Lavinsky; Contribution: thdun5
Location: Demokratische Republik Kongo/Katanga (Shaba), Provinz/Ober-Katanga (Haut-Katanga), Distrikt/Shinkolobwe (Kasolo)/Shinkolobwe Mine (Kasolo Mine)
Mineral: Lepersonnite-(Gd)
Image: 1275729731
Rating: 7 (votes: 2)
License: Usage for Mineralienatlas project only
Lepersonnit-(Gd)

Größe: 2,4 x 2 x 1,5 cm mm, Fundort: Shinkolobwe Mine, Shinkolobwe, Shaba, Dem. Rep. Kongo
Copyright: Rob Lavinsky
Contribution: thdun5 2010-06-05
Locality: Shinkolobwe Mine (Kasolo Mine) / Shinkolobwe (Kasolo) / Ober-Katanga (Haut-Katanga), Distrikt / Katanga (Shaba), Provinz / Demokratische Republik Kongo

Collectors Summary

Color leuchtend gelb
Streak color hellgelb
Crystal System orthorhombisch, Pnn2, Pnnm

Chemism

Chemical formula

Ca(Gd,Dy)2[(UO2)6|(OH)6|(CO3)2|SiO4]4·48H2O

Chemical composition

Calcium, Dysprosium, Gadolinium, Silicium, Kohlenstoff, Sauerstoff, Uran, Wasserstoff

Unit weight: 8959.192662 u; Number of atoms in the formula: 319

Info

Empirical formula:

Ca(Gd0.75Dy0.25)2[(UO2)6(OH)6(CO3)2SiO4]4·48H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.35

120

37.62

1.0079470

120.9536400
Carbon

C

1.07

8

2.51

12.0107800

96.0862400
Oxygen

O

28.57

160

50.16

15.9994300

2,559.9088000
Silicon

Si

1.25

4

1.25

28.0855300

112.3421200
Calcium

Ca

0.45

1

0.31

40.0784000

40.0784000
Gadolinium

Gd

2.63

1.5

0.47

157.2530000

235.8795000
Dysprosium

Dy

0.91

0.5

0.16

162.5001000

81.2500500
Uranium

U

63.76

24

7.52

238.0289130

5,712.6939120

Analysis wt%

SiO2 : 2.79, UO3 : 76.14, Gd2O3 : 2.09, Dy2O3 : 1.07, Y2O3 : 0.41, CaO : 0.45, CO2 : 4.02, H2O : 12.12, Ln2O3 : 3.66 (Ref: Canadian Mineralogist 82)

Strunz 9th edition incl. updates

5.EG.10

5: Carbonate (Carbonate, Nitrate)
E: Uranylcarbonate
G: Mit SO4 oder SiO4
10:Lepersonnit

Lapis Classification

VIII/B.38-010

VIII: SILIKATE
B: Inselsilikate mit tetraederfremden Anionen
38: Kationen mit Koordinationszahlen zwischen [8] und [12]; Uranyl-Inselsilikate mit [UO2] 2+-[SiO4] 4- und Verwandte

Classification by Hölzel

5.ED.550

5: CARBONATES NITRATES ARSENITES SULFITES SELENITES TELLURITES IODATES
E: Uranyl-Carbonates
D: Uranyl-Carbonates (+Anions +Water)

Dana 8th edition

17.01.12.01

17: Compound Carbonates
01: Compound Carbonates with miscellaneous formulae

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

leuchtend gelb

Streak color

hellgelb

Diaphaneity (Transparency)

transparent bis durchscheinend

max. Birefringence

0.044
Birefringence chart\! Lepersonnite-(Gd) title=Birefringence chart Lepersonnite-(Gd)

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

1.638

RI value β

1.666

RI value γ / ε

1.682

Ri mean

1.662

2V angle

Biaxial (-) 73°

Optical Data Luminescence

Luminescence

keine Fluoreszenz bekannt

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mm2, mmm

Space Group number

34, 58

Space Group

Pnn2, Pnnm

Cell parameters a (Å)

16.23

Cell parameters b (Å)

38.74

Cell parameters c (Å)

11.73

Cell parameters a/b or c/a

0.419

Cell parameters c/b

0.303

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

2

Volume (ų)

7375.24

X-Ray Powder Diffraction

11.1(10),
8.15(100),
6.46(10),
4.06(10),
3.65(70),
3.21(50),
3.00(10),
2.86(40)
XRD chart Lepersonnite-(Gd)

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

Crystals 3D

Open larger view

Physical Properties

Density (g/cm³)

3.97

4.034 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Demokratische Republik Kongo/Katanga (Shaba), Provinz/Ober-Katanga (Haut-Katanga), Distrikt/Shinkolobwe (Kasolo)/Shinkolobwe Mine (Kasolo Mine)

Preface

Author (Name, Year)

Deliens & Piret, 1982

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

Canadian Mineralogist 20 (1982), 231

Other languages

German

Lepersonnit-(Gd)

Spanish

Lepersonnita-(Gd)

French

Lepersonnite-(Gd)

English

Lepersonnite-(Gd)

CNMNC (IMA)-Number

IMA 1981-036

CNMNC symbol

Symbol

Lps-Gd

Locations with GPS information

IDs

GUSID (Global unique identifier short form) CAFx7V56FUimAz21Mx_ghg
GUID (Global unique identifier) ED710108-7A5E-4815-A603-3DB5331FE086
Database ID 2185