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Astrocyanite-(Ce)

Pictures (4 Images total)

Kamotoit-(Y), Astrocyanit-(Ce)
Views (File:
1282933595
): 4721
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
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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
Shabait-(Nd) xx
Views (File:
1589558818
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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
Astrocyanit-(Ce) xx
Views (File:
1701548065
): 39
Astrocyanit-(Ce) xx
Kleine blaue Astrocyanit-(Ce) xx neben Kamotoit-(Y) und Shabait-(Nd). BB 24 mm.
Copyright: Andreas S.; Contribution: Andi_Y
Collection: Andreas S.
Location: Demokratische Republik Kongo/Katanga (Shaba), Provinz/Lualaba, Distrikt/Kolwezi, Revier/Kamoto/Kamoto Ost
Mineral: Astrocyanite-(Ce)
Image: 1701548065
License: Usage for Mineralienatlas project only
Astrocyanit-(Ce) xx

Kleine blaue Astrocyanit-(Ce) xx neben Kamotoit-(Y) und Shabait-(Nd). BB 24 mm.
Collection: Andreas S.
Copyright: Andreas S.
Contribution: Andi_Y 2023-12-02
Locality: Kamoto Ost / Kamoto / Kolwezi, Revier / Lualaba, Distrikt / Katanga (Shaba), Provinz / Demokratische Republik Kongo

Collectors Summary

Color blau, leuchtend blau, blau grün
Streak color bläulichweiß
Hardness (Mohs) 2.5
Cleavages gut {001}
Fracture uneben
Solubility +++ HCl
Crystal System hexagonal,

Chemism

Chemical formula

Cu2(Ce,Nd,La)2(UO2)(CO3)5(OH)2·1.5H2O

Chemical composition

Cerium, Kupfer, Lanthanum, Neodymium, Kohlenstoff, Sauerstoff, Uran, Wasserstoff

Unit weight: 1040.669687 u; Number of atoms in the formula: 35.5

Info

Empirical formula:

Cu2(Ce0.6Nd0.3La0.1)2(UO2)(CO3)5(OH)2·1.5H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.48

5

14.08

1.0079470

5.0397350
Carbon

C

5.77

5

14.08

12.0107800

60.0539000
Oxygen

O

31.52

20.5

57.75

15.9994300

327.9883150
Copper

Cu

12.21

2

5.63

63.5463000

127.0926000
Lanthanum

La

2.67

0.2

0.56

138.9055200

27.7811040
Cerium

Ce

16.16

1.2

3.38

140.1161000

168.1393200
Neodymium

Nd

8.32

0.6

1.69

144.2430000

86.5458000
Uranium

U

22.87

1

2.82

238.0289130

238.0289130

Strunz 9th edition incl. updates

5.EF.05

5: Carbonate (Carbonate, Nitrate)
E: Uranylcarbonate
F: UO2:CO3 > 1:1
05:Urancalcarit-Gruppe

Lapis Classification

V/F.06-005

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

Classification by Hölzel

5.ED.500

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

Dana 8th edition

16b.01.06.01

16b: Carbonates - Hydroxyl or Halogen
01: Carbonates - Hydroxyl or Halogen where (A)m (B)n (XO3)p Zq, with (m+n):p=1:1

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

blau, leuchtend blau, blau grün

Streak color

bläulichweiß

Diaphaneity (Transparency)

durchscheinend bis opak

max. Birefringence

0.050
Birefringence chart\! Astrocyanite-(Ce) title=Birefringence chart Astrocyanite-(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

1.688

RI value γ / ε

1.638

Ri mean

1.671

2V angle

Uniaxial (-)

Crystallography

Crystal System

hexagonal

Cell parameters a (Å)

14.96

Cell parameters b (Å)

-

Cell parameters c (Å)

26.86

Cell parameters a/b or c/a

1.795

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

120°

Z

12

Volume (ų)

5205.948

X-Ray Powder Diffraction

13.3(40),
6.73(100),
4.30(50),
4.16(60),
3.72(90),
2.488(40),
2.154(40),
2.071(40)
XRD chart Astrocyanite-(Ce)

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

2.5

VHN (Hardness Vickers)

53 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.8

3.983 ( ρ calc. Mineralienatlas )

Cleavages

gut {001}

Fracture

uneben

Radioactivity

radioaktiv

Instability

+++ HCl

(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, 1990

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

European Journal of Mineralogy 2 (1990), 407

Other languages

Spanish

Astrocianita-(Ce)

German

Astrocyanit-(Ce)

French

Astrocyanite-(Ce)

English

Astrocyanite-(Ce)

Russian

Астрокианит-(Ce)

CNMNC (IMA)-Number

IMA 1989-032

CNMNC symbol

Symbol

Acy-Ce

Locations with GPS information

IDs

GUSID (Global unique identifier short form) ofZlCj7KfEGreouEEF5fgw
GUID (Global unique identifier) 0A65F6A1-CA3E-417C-AB7A-8B84105E5F83
Database ID 229