https://www.mineraliengrosshandel.com
https://www.edelsteine-neuburg.de
https://www.mineralbox.biz
https://www.mineral-bosse.de
'._('einklappen').'
 

Kamotoite-(Y) (Kamotoit-(Y))

Pictures (5 Images total)

Kamotoit-(Y)
Views (File:
1282933893
): 1110
Kamotoit-(Y)
Bildbreite: 3 mm, Fundort: Kamoto Ost, Kamoto, Shaba, Kongo
Copyright: Richard De Nul; Contribution: thdun5
Location: Demokratische Republik Kongo/Katanga (Shaba), Provinz/Lualaba, Distrikt/Kolwezi, Revier/Kamoto/Kamoto Ost
Mineral: Kamotoite-(Y)
Image: 1282933893
Rating: 7.5 (votes: 2)
License: Usage for Mineralienatlas project only
Kamotoit-(Y)

Bildbreite: 3 mm, Fundort: Kamoto Ost, Kamoto, Shaba, Kongo
Copyright: Richard De Nul
Contribution: thdun5 2010-08-27
Locality: Kamoto Ost / Kamoto / Kolwezi, Revier / Lualaba, Distrikt / Katanga (Shaba), Provinz / Demokratische Republik Kongo
Kamotoit-(Y), Astrocyanit-(Ce)
Views (File:
1282933595
): 4356
Kamotoit-(Y), Astrocyanit-(Ce)
Kamotoit-(Y) (gelb) mit Astrocyanit-(Ce) (blau), Größe: 5,3 x 3,8 x 3,5 cm, Fundort: Kamoto Ost, Kamoto, Shaba, Kongo
Copyright: Rob Lavinsky; Contribution: thdun5
Location: Demokratische Republik Kongo/Katanga (Shaba), Provinz/Lualaba, Distrikt/Kolwezi, Revier/Kamoto/Kamoto Ost
Mineral: Astrocyanite-(Ce), Kamotoite-(Y)
Image: 1282933595
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Kamotoit-(Y), Astrocyanit-(Ce)

Kamotoit-(Y) (gelb) mit Astrocyanit-(Ce) (blau), Größe: 5,3 x 3,8 x 3,5 cm, Fundort: Kamoto Ost, Kamoto, Shaba, Kongo
Copyright: Rob Lavinsky
Contribution: thdun5 2010-08-27
Locality: Kamoto Ost / Kamoto / Kolwezi, Revier / Lualaba, Distrikt / Katanga (Shaba), Provinz / Demokratische Republik Kongo
Astrocyanit und Kamotoit auf Uraninit
Views (File:
1396719671
): 1283
Astrocyanit und Kamotoit auf Uraninit
Kamoto-Ost, Demokratische Republik Kongo; Stufengröße: 2.5 x 1.4 x 1 cm
Copyright: Leonardus; Contribution: Bart0815
Collection: Christian R.
Location: Demokratische Republik Kongo/Katanga (Shaba), Provinz/Lualaba, Distrikt/Kolwezi, Revier/Kamoto/Kamoto Ost
Mineral: Astrocyanite-(Ce), Kamotoite-(Y)
Image: 1396719671
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Astrocyanit und Kamotoit auf Uraninit

Kamoto-Ost, Demokratische Republik Kongo; Stufengröße: 2.5 x 1.4 x 1 cm
Collection: Christian R.
Copyright: Leonardus
Contribution: Bart0815 2014-04-05
Locality: Kamoto Ost / Kamoto / Kolwezi, Revier / Lualaba, Distrikt / Katanga (Shaba), Provinz / Demokratische Republik Kongo
Kamotoit-(Y)
Views (File:
1374833869
): 561
Kamotoit-(Y)
Kamotoit-(Y); Kamoto Ost, Kongo; Bildbreite: 2,5 cm.
Copyright: Jan Hartmann; Contribution: Alcest
Collection: Jan Hartmann
Location: Demokratische Republik Kongo/Katanga (Shaba), Provinz/Lualaba, Distrikt/Kolwezi, Revier/Kamoto/Kamoto Ost
Mineral: Kamotoite-(Y)
Image: 1374833869
License: Usage for Mineralienatlas project only
Kamotoit-(Y)

Kamotoit-(Y); Kamoto Ost, Kongo; Bildbreite: 2,5 cm.
Collection: Jan Hartmann
Copyright: Jan Hartmann
Contribution: Alcest 2013-07-26
Locality: Kamoto Ost / Kamoto / Kolwezi, Revier / Lualaba, Distrikt / Katanga (Shaba), Provinz / Demokratische Republik Kongo
Shabait-(Nd) xx
Views (File:
1589558818
): 572
Shabait-(Nd) xx
hellgelbe Garben von Shabait-(Nd) (mitte rechts) neben gelben langprismatischen Kamotoit-(Y)-Kristallen und blaugrünen Astrocyanitkugeln auf Uranophan-Kristallrasen; Fundort Tagebau Kamoto-Ost,Kolwezi,Lualaba/Rep.Kongo; ex.Slg.Francis Coune; Bildbreite 5,7 mm
Copyright: Haubi; Contribution: Haubi
Collection: Haubi
Location: Demokratische Republik Kongo/Katanga (Shaba), Provinz/Lualaba, Distrikt/Kolwezi, Revier/Kamoto/Kamoto Ost
Mineral: Astrocyanite-(Ce), Kamotoite-(Y), Shabaite-(Nd), Uranophane
Image: 1589558818
License: Usage for Mineralienatlas project only
Shabait-(Nd) xx

hellgelbe Garben von Shabait-(Nd) (mitte rechts) neben gelben langprismatischen Kamotoit-(Y)-Kristallen und blaugrünen Astrocyanitkugeln auf Uranophan-Kristallrasen; Fundort Tagebau Kamoto-Ost,Kolw...
Collection: Haubi
Copyright: Haubi
Contribution: Haubi 2020-05-15
Locality: Kamoto Ost / Kamoto / Kolwezi, Revier / Lualaba, Distrikt / Katanga (Shaba), Provinz / Demokratische Republik Kongo

Collectors Summary

Color gelb, leuchtend gelb
Solubility +++ Säuren
Crystal System monoklin, P21/a

Chemism

Chemical formula

(Y,Nd,Gd)2(UO2)4(CO3)3O4·14H2O

Chemical composition

Gadolinium, Neodymium, Yttrium, Kohlenstoff, Sauerstoff, Uran, Wasserstoff

Unit weight: 1801.0339804 u; Number of atoms in the formula: 72

Info

Empirical formula:

(Y0.6Nd0.3Gd0.1)2(UO2)4(CO3)3O4·14H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.57

28

38.89

1.0079470

28.2225160
Carbon

C

2.00

3

4.17

12.0107800

36.0323400
Oxygen

O

31.09

35

48.61

15.9994300

559.9800500
Yttrium

Y

5.92

1.2

1.67

88.9058520

106.6870224
Neodymium

Nd

4.81

0.6

0.83

144.2430000

86.5458000
Gadolinium

Gd

1.75

0.2

0.28

157.2530000

31.4506000
Uranium

U

52.86

4

5.56

238.0289130

952.1156520

Analysis wt%

UO3 : 63.39, Y2O3 : 6.19, Nd2O3 : 2.36, Sm2O3 : 1.91, Gd2O3 : 2.10, Dy2O3 : 1.64, CO2 : 7.24, H2O : 14.30, Ln2O3 : 14.20 (Ref: Bulletin de Mineralogie 86)

Strunz 9th edition incl. updates

5.EA.30

5: Carbonate (Carbonate, Nitrate)
E: Uranylcarbonate
A: UO2:CO3 = 1:1
30:

Lapis Classification

V/F.06-020

V: NITRATE, CARBONATE UND BORATE
F: Uranylcarbonate [UO2] 2+ – [CO3] 2-

Classification by Hölzel

5.ED.600

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

Dana 8th edition

16b.03.03.01

16b: Carbonates - Hydroxyl or Halogen
03: Carbonates - Hydroxyl or Halogen where Am Bn (XO3)p Zq · x(H2O), (m+n):p = 2:1

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

gelb, leuchtend gelb

Diaphaneity (Transparency)

transparent bis durchscheinend

max. Birefringence

0.127
Birefringence chart\! Kamotoite-(Y) title=Birefringence chart Kamotoite-(Y)

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

1.604

RI value β

1.667

RI value γ / ε

1.731

Ri mean

1.667

2V angle

Biaxial (-) 87°

Optical Data Luminescence

Color LW-UV (365nm)

  

gelblich grün

LW-UV Intensity

schwach

Color SW-UV (254nm)

  

gelblich grün

SW-UV Intensity

mittel

Most Common Activator

(UO2)2+ (Uranyl-Ion) spezifisch

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/a

Cell parameters a (Å)

21.22

Cell parameters b (Å)

12.93

Cell parameters c (Å)

12.39

Cell parameters a/b or c/a

1.641

Cell parameters c/b

0.958

Cell parameters α

90°

Cell parameters β

115.30

Cell parameters γ

90°

Z

4

Volumne (ų)

3073.43

Kristall structure

Jakub Plášil, Václav Petříček: Crystal structure of the (REE)-uranyl carbonate mineral kamotoite-(Y). Mineral Mag Vol. 81 (2017) S. 653-660.

X-Ray Powder Diffraction

8.49(80),
6.48(100),
3.93(30),
3.49(40),
3.054(60),
2.762(40),
2.132(40),
1.749(40)
XRD chart Kamotoite-(Y)

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

Crystals 3D

Open larger view

Physical Properties

Density (g/cm³)

3.93

3.892 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Demokratische Republik Kongo/Katanga (Shaba), Provinz/Lualaba, Distrikt/Kolwezi, Revier/Kamoto/Kamoto Ost

Preface

Author (Name, Year)

Deliens & Piret, 1986

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

Bulletin de Minéralogie 109 (1986), 643

Plášil, Jakub; Petříček, Václav - Crystal structure of the (REE)-uranyl carbonate mineral kamotoite-(Y) - Mineralogical Magazine, 81, 653-660

Other languages

German

Kamotoit-(Y)

French

Kamotoite-(Y)

English

Kamotoite-(Y)

Spanish

Kamotoíta-(Y)

CNMNC (IMA)-Number

IMA 1985-051

CNMNC symbol

Symbol

Kmt-Y

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 1GKpJaMyr0qQQ3jHP37mpg
GUID (Global unique identifier) 25A962D4-32A3-4AAF-9043-78C73F7EE6A6
Database ID 1870