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Agricolaite

Pictures (4 Images total)

Agricolait xx
Views (File:
1576947209
): 1793
Agricolait xx
Jachymov,Erzgebirge/Böhmen,Tschechien; Bildbreite 1,55 mm
Copyright: Haubi; Contribution: Haubi
Collection: Haubi
Location: Tschechien/Karlsbad (Karlovarský kraj)/Karlsbad (Okres Karlovy Vary)/St. Joachimsthal (Jáchymov)
Mineral: Agricolaite
Image: 1576947209
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Agricolait xx

Jachymov,Erzgebirge/Böhmen,Tschechien; Bildbreite 1,55 mm

Collection: Haubi
Copyright: Haubi
Contribution: Haubi 2019-12-21
Locality: St. Joachimsthal (Jáchymov) / Karlsbad (Okres Karlovy Vary) / Karlsbad (Karlovarský kraj) / Tschechien
Agricolait
Views (File:
1444411405
): 2817
Agricolait
Bildbreite: 2,5 mm, Fundort: Werner Mine (Rovnost), St. Joachimsthal (Jáchymov), Region Karlsbad (Karlovarsky kraj), Tschechien
Copyright: Pavel Škácha, Czechmin; Contribution: thdun5
Location: Tschechien/Karlsbad (Karlovarský kraj)/Karlsbad (Okres Karlovy Vary)/St. Joachimsthal (Jáchymov)/Werner Mine (Rovnost)
Mineral: Agricolaite
Image: 1444411405
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Agricolait

Bildbreite: 2,5 mm, Fundort: Werner Mine (Rovnost), St. Joachimsthal (Jáchymov), Region Karlsbad (Karlovarsky kraj), Tschechien

Copyright: Pavel Škácha, Czechmin
Contribution: thdun5 2015-10-09
Locality: Werner Mine (Rovnost) / St. Joachimsthal (Jáchymov) / Karlsbad (Okres Karlovy Vary) / Karlsbad (Karlovarský kraj) / Tschechien
Agricolait
Views (File:
1444411692
): 959
Agricolait
blassgelbe Agricolait-Kristalle, Bildbreite: 2,3 mm, Fundort: St. Joachimsthal (Jáchymov), Region Karlsbad (Karlovarsky kraj), Tschechien
Copyright: Luigi Chiappino; Contribution: thdun5
Location: Tschechien/Karlsbad (Karlovarský kraj)/Karlsbad (Okres Karlovy Vary)/St. Joachimsthal (Jáchymov)
Mineral: Agricolaite
Image: 1444411692
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Agricolait

blassgelbe Agricolait-Kristalle, Bildbreite: 2,3 mm, Fundort: St. Joachimsthal (Jáchymov), Region Karlsbad (Karlovarsky kraj), Tschechien

Copyright: Luigi Chiappino
Contribution: thdun5 2015-10-09
Locality: St. Joachimsthal (Jáchymov) / Karlsbad (Okres Karlovy Vary) / Karlsbad (Karlovarský kraj) / Tschechien
Agricolait
Views (File:
1444411586
): 1008
Agricolait
blassgelbe Agricolait-Kristalle, Bildbreite: 1,4 mm, Fundort: Werner Mine (Rovnost), St. Joachimsthal (Jáchymov), Region Karlsbad (Karlovarsky kraj), Tschechien
Copyright: Luigi Chiappino; Contribution: thdun5
Location: Tschechien/Karlsbad (Karlovarský kraj)/Karlsbad (Okres Karlovy Vary)/St. Joachimsthal (Jáchymov)/Werner Mine (Rovnost)
Mineral: Agricolaite
Image: 1444411586
License: Usage for Mineralienatlas project only
Agricolait

blassgelbe Agricolait-Kristalle, Bildbreite: 1,4 mm, Fundort: Werner Mine (Rovnost), St. Joachimsthal (Jáchymov), Region Karlsbad (Karlovarsky kraj), Tschechien

Copyright: Luigi Chiappino
Contribution: thdun5 2015-10-09
Locality: Werner Mine (Rovnost) / St. Joachimsthal (Jáchymov) / Karlsbad (Okres Karlovy Vary) / Karlsbad (Karlovarský kraj) / Tschechien

Collectors Summary

Color gelb
Streak color blass gelb
Lustre Glasglanz
Hardness (Mohs) 4
Fracture unregelmäßig, uneben
Crystal System monoklin, C2/c

Chemism

Chemical formula

K4(UO2)(CO3)3

Additional chem. information

K-dominantes Dimorph von Čejkait

Chemical composition

Kalium, Kohlenstoff, Sauerstoff, Uran

Unit weight: 606.448223 u; Number of atoms in the formula: 19

Info

Empirical formula:

K4(UO2)(CO3)3

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Carbon

C

5.94

3

15.79

12.0107800

36.0323400

Oxygen

O

29.02

11

57.89

15.9994300

175.9937300

Potassium

K

25.79

4

21.05

39.0983100

156.3932400

Uranium

U

39.25

1

5.26

238.0289130

238.0289130

Analysis wt%

CO2 : 21.70, UO3 : 47.34, K2O : 30.96 (Ref: berechnet)

Strunz 9th edition incl. updates

5.ED.50

5: Carbonate (Carbonate, Nitrate)
E: Uranylcarbonate
D: UO2:CO3 = 1:4
50:Cejkait-Gruppe

Lapis Classification

V/F.02-006

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

Classification by Hölzel

5.EA.330

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

Dana 8th edition

14.04.08.02

14: Anhydrous Carbonates
04: Anhydrous Carbonates with Compound Formula A+2 B++2 (CO3)4

IMA status

anerkannt - IMA Web-Seite Jan. 2010

Mineral status

anerkanntes Mineral

Optical Properties

Color

gelb

Streak color

blass gelb

Diaphaneity (Transparency)

durchscheinend

Lustre

Glasglanz

Optical Data Luminescence

Color LW-UV (365nm)

 

grün

MW-UV (320nm)

 

grün

Color SW-UV (254nm)

 

grün

Most Common Activator

(UO2)2+ (Uranyl-Ion) spezifisch

Afterglow (Persistant Luminescence)

Mit bloßem Auge konnte keine Phosphoreszenz festgestellt werden.

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

C2/c

Cell parameters a (Å)

10.238

Cell parameters b (Å)

9.193

Cell parameters c (Å)

12.211

Cell parameters a/b or c/a

1.114

Cell parameters c/b

1.328

Cell parameters α

90°

Cell parameters β

95.10

Cell parameters γ

90°

Z

4

Volume (ų)

1144.724

Crystal structure

bekannter Strukturtyp, Struktur ermittelt

X-Ray Powder Diffraction

6.061(55), 5.793(30), 5.087(57), 3.740(100), 3.393(44), 2.408(33), 2.281(52), 1.873(40)

XRD chart Agricolaite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

4

Density (g/cm³)

3.508 (berechnet)

3.519 ( ρ calc. Mineralienatlas )

Fracture

unregelmäßig, uneben

Tenacity

spröde

Preface

Name from

Benannt nach Georgius Agricola (Glauchau, den 24. März 1494 - Chemnitz, 21. November 1555), deutscher Gelehrter und Wissenschaftler. Er gilt als der "Vater der Mineralogie".

Author (Name, Year)

Roman Skála, 2009

References

Neue Mineralien - IMA Web-Seite Jan. 2010

Anderson, A., Chieh, C., Irish, D.E., Tong, J.P.K. (1980): Canad.J.Chem., 53, 2454-2458

Císarová, I., Skála, R., Ondrus, P., Drábek, M. (2001): Acta Crystallographica, E57, i32-i34

Chernorukov, N.G., Knyazev, A.V., Vlasova, E.V., Ershova, A.V. (2008): Russian J.Inorg.Chem., 53, 530-538

Chernorukov, N.G., Knyazev, A.V., Vlasova, E.V., Kuznetsova, N.Yu. (2009): Radiochemistry, 51, 244-249

Other languages

German

Agricolait

Spanish

Agricolaita

English

Agricolaite

Russian

Агриколаит

CNMNC (IMA)-Number

IMA 2009-081

CNMNC symbol

Symbol

Agc

Locations with GPS information

IDs

GUSID (Global unique identifier short form) GPwZr3Ubd0ioOBmRd9jo9w
GUID (Global unique identifier) AF19FC18-1B75-4877-A838-199177D8E8F7
Database ID 6865