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Watkinsonite

Pictures (6 Images total)

Watkinsonit
Views (File:
1477864255
): 692
Watkinsonit
Bildbreite ca. 3mm, El Dragon Mine, Bolivien
Copyright: Stefan; Contribution: Stefan
Location: Bolivien/Potosi, Departamento/Antonio Quijarro, Provinz/El Dragón Mine
Mineral: Watkinsonite
Image: 1477864255
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Watkinsonit

Bildbreite ca. 3mm, El Dragon Mine, Bolivien
Copyright: Stefan
Contribution: Stefan 2016-10-30
Locality: El Dragón Mine / Antonio Quijarro, Provinz / Potosi, Departamento / Bolivien
Watkinsonite, Clausthalite, Uraninite
Views (File:
1477773015
): 544
Watkinsonite, Clausthalite, Uraninite
Watkinsonite grain of steel gray colour with a thin clausthalite rim of a bluish grey colour. Small uraninites balls forms inclusions in selenides. Field of view 7 mm; Locality: Zálesí, Javorník, Olomouc Region, Moravia, Czech Republic;
Copyright: Pavel Škácha, Czechmin; Contribution: Stefan
Location: Tschechien/Olmütz (Olomoucky Kraj)/Freiwaldau (Jesenik), Bezirk/Jauernig (Javornik)/Waldek (Zalesi)
Mineral: Watkinsonite
Image: 1477773015
License: Usage for Mineralienatlas project only
Watkinsonite, Clausthalite, Uraninite

Watkinsonite grain of steel gray colour with a thin clausthalite rim of a bluish grey colour. Small uraninites balls forms inclusions in selenides. Field of view 7 mm; Locality: Zálesí, Javorník, O...
Copyright: Pavel Škácha, Czechmin
Contribution: Stefan 2016-10-29
Locality: Waldek (Zalesi) / Jauernig (Javornik) / Freiwaldau (Jesenik), Bezirk / Olmütz (Olomoucky Kraj) / Tschechien
Watkinsonite, Chalcopyrite
Views (File:
1477773164
): 446
Watkinsonite, Chalcopyrite
Silver-gray, massive watkinsonite with chalcopyrite. Associated minerals, not in the photograph, include, calcite, clausthalite and uraninite. FOV 5mm. Brent Thorne specimen and photograph; Locality: Zálesí, Javorník, Olomouc Region, Moravia, Czech Republic;
Copyright: Brent Thorne; Contribution: Stefan
Location: Tschechien/Olmütz (Olomoucky Kraj)/Freiwaldau (Jesenik), Bezirk/Jauernig (Javornik)/Waldek (Zalesi)
Mineral: Watkinsonite
Image: 1477773164
License: Usage for Mineralienatlas project only
Watkinsonite, Chalcopyrite

Silver-gray, massive watkinsonite with chalcopyrite. Associated minerals, not in the photograph, include, calcite, clausthalite and uraninite. FOV 5mm. Brent Thorne specimen and photograph; Localit...
Copyright: Brent Thorne
Contribution: Stefan 2016-10-29
Locality: Waldek (Zalesi) / Jauernig (Javornik) / Freiwaldau (Jesenik), Bezirk / Olmütz (Olomoucky Kraj) / Tschechien
Watkinsonit u. Clausthalit
Views (File:
1596468087
): 278
Watkinsonit u. Clausthalit
Schacht 371 Hartenstein; Bildbreite 2,3 mm
Copyright: Ulrich Hansper; Contribution: Ulrich Hansper
Collection: Ulrich Hansper
Location: Deutschland/Sachsen/Erzgebirgskreis/Lagerstätte Schlema-Alberoda/Schacht 371
Mineral: Watkinsonite
Image: 1596468087
License: Usage for Mineralienatlas project only
Watkinsonit u. Clausthalit

Schacht 371 Hartenstein; Bildbreite 2,3 mm
Collection: Ulrich Hansper
Copyright: Ulrich Hansper
Contribution: Ulrich Hansper 2020-08-03
Locality: Schacht 371 / Lagerstätte Schlema-Alberoda / Erzgebirgskreis / Sachsen / Deutschland
Watkinsonit u. Clausthalit
Views (File:
1596468165
): 248
Watkinsonit u. Clausthalit
Schacht 371 Hartenstein; Bildbreite 2,3 mm
Copyright: Ulrich Hansper; Contribution: Ulrich Hansper
Collection: Ulrich Hansper
Location: Deutschland/Sachsen/Erzgebirgskreis/Lagerstätte Schlema-Alberoda/Schacht 371
Mineral: Watkinsonite
Image: 1596468165
License: Usage for Mineralienatlas project only
Watkinsonit u. Clausthalit

Schacht 371 Hartenstein; Bildbreite 2,3 mm
Collection: Ulrich Hansper
Copyright: Ulrich Hansper
Contribution: Ulrich Hansper 2020-08-03
Locality: Schacht 371 / Lagerstätte Schlema-Alberoda / Erzgebirgskreis / Sachsen / Deutschland
Watkinsonit u. Clausthalit
Views (File:
1596468252
): 211
Watkinsonit u. Clausthalit
Schacht 371 Hartenstein; Bildbreite 2,3 mm
Copyright: Ulrich Hansper; Contribution: Ulrich Hansper
Collection: Ulrich Hansper
Location: Deutschland/Sachsen/Erzgebirgskreis/Lagerstätte Schlema-Alberoda/Schacht 371
Mineral: Watkinsonite
Image: 1596468252
License: Usage for Mineralienatlas project only
Watkinsonit u. Clausthalit

Schacht 371 Hartenstein; Bildbreite 2,3 mm
Collection: Ulrich Hansper
Copyright: Ulrich Hansper
Contribution: Ulrich Hansper 2020-08-03
Locality: Schacht 371 / Lagerstätte Schlema-Alberoda / Erzgebirgskreis / Sachsen / Deutschland

Collectors Summary

Color weiß mit einem bläulichen Farbton
Hardness (Mohs) 3.5
Solubility +++ HNO3
Crystal System monoklin, P21/m für das schwefelfreie Endglied
P2, Pm, P2/m

Chemism

Chemical formula

PbCu2Bi4(Se,S)8

Chemical composition

Bismut, Blei, Kupfer, Selen, Schwefel

Unit weight: 1708.133128 u; Number of atoms in the formula: 15

Info

Empirical formula:

PbCu2Bi4(Se0.75S0.25)8

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Sulfur

S

3.75

2

13.33

32.0655000

64.1310000
Copper

Cu

7.44

2

13.33

63.5463000

127.0926000
Selenium

Se

27.74

6

40.00

78.9630000

473.7780000
Lead

Pb

12.13

1

6.67

207.2100000

207.2100000
Bismuth

Bi

48.94

4

26.67

208.9803820

835.9215280

Analysis wt%

Cu : 9.04, Pb : 15.83, Bi : 43.90, Se : 27.98, S : 3.24, Te : 0.46 (Ref: Canadian Mineralogist 87)

Strunz 9th edition incl. updates

2.HB.20

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
H: Sulfosalze mit SnS als Vorbild
B: Mit Cu, Ag, Fe, Sn und Pb
20:Nagyágit-Gruppe

Lapis Classification

II/E.34-090

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
E: Sulfosalze (S : As,Sb,Bi = x)
34: Blei-Sulfosalze mit Wismut (x= 6,0 - 1,6); Galenobismutit-Reihe

Classification by Hölzel

2.HA.300

2: SULFIDES
H: PbS Archetype
A: With Cu,Ag,Pb
3: Junoite-Proudite Series

Dana 8th edition

03.07.18.01

03: Sulfides - Sulfosalts
07: Sulfides - Sulfosalts where z/y = 2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

weiß mit einem bläulichen Farbton

Diaphaneity (Transparency)

opak

Crystallography

Crystal System

monoklin

Class (H-M)

2, m, 2/m

Space Group number

11 für das schwefelfreie Endglied
3, 6, 10

Space Group

P21/m für das schwefelfreie Endglied
P2, Pm, P2/m

Cell parameters a (Å)

12.952

Cell parameters b (Å)

4.152

Cell parameters c (Å)

15.155

Cell parameters a/b or c/a

3.119

Cell parameters c/b

3.650

Cell parameters α

90°

Cell parameters β

108.93

Cell parameters γ

90°

Z

2

Volumne (ų)

770.908

Kristall structure

aufgeklärt, siehe Dan Topa, Emil Makovicky, Jirí Sejkora, Herbert Dittrich: The crystal structure of watkinsonite, Cu2PbBi4Se8, from the Zálesí uranium deposit, Czech Republic. Can. Mineral. 48 (2010) S.1109-1118. Strukturell große Ähnlichkeit mit Berryit.

X-Ray Powder Diffraction

3.573(90),
2.976(100),
2.929(100),
2.407(70),
2.245(60),
2.140(70),
2.065(70),
1.484(70)
XRD chart Watkinsonite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

3.5

VHN (Hardness Vickers)

166 (25g)

Density (g/cm³)

7.82 (berechnet)

7.358 ( ρ calc. Mineralienatlas )

Instability

+++ HNO3

(Co-)Type locality

(Co-)Type locality

Kanada/Québec/Nord-du-Québec, Region/James Bay (Baie-James)/Otish Mts/Uran-Lagerstätte

Preface

Author (Name, Year)

Johan & Picot & Ruhlmann, 1987

References

Canadian Mineralogist 25 (1987), 625

Other languages

German

Watkinsonit

Spanish

Watkinsonita

French

Watkinsonite

English

Watkinsonite

Russian

Уаткинсонит

Japanese

ﾜﾄｷﾝｿﾅｲﾄ

CNMNC (IMA)-Number

IMA 1985-024

CNMNC symbol

Symbol

Wat

Locations with GPS information