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Ludlockite

Pictures (73 Images total)

Ludlockit
Views (File:
1404644458
): 1416
Ludlockit
Bildbreite: 3 mm; Fundort: Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Namibia/Oshikoto (Otjikoto), Region/Tsumeb/Tsumeb Mine
Mineral: Ludlockite
Image: 1404644458
Rating: 9.5 (votes: 2)
License: Usage for Mineralienatlas project only
Ludlockit

Bildbreite: 3 mm; Fundort: Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
Copyright: Stephan Wolfsried
Contribution: Hg 2014-07-06
Locality: Tsumeb Mine / Tsumeb / Oshikoto (Otjikoto), Region / Namibia
Ludlockit xx
Views (File:
1674637600
): 119
Ludlockit xx
Ludlockit, Lavrion Legraina, BB 4 mm Sammlung Klaus Arnold Foto M. Reinhardt-Nachbearbeitung Kh. Grosch
Copyright: Matthias Reinhardt; Contribution: Karlheinz Grosch
Collection: Klaus Arnold, Collection number: 0245
Location: Griechenland/Attika (Attikí, Attica)/East Attica/Lavreotiki/Lavrion (Laurion), Schlackenfundstellen/Sounion/Legraina
Mineral: Ludlockite
Image: 1674637600
Rating: 10 (votes: 1)
License: Usage for Mineralienatlas project only
Ludlockit xx (SNr: 0245)

Ludlockit, Lavrion Legraina, BB 4 mm Sammlung Klaus Arnold Foto M. Reinhardt-Nachbearbeitung Kh. Grosch
Collection: Klaus Arnold
Copyright: Matthias Reinhardt
Contribution: Karlheinz Grosch 2023-01-25
Locality: Legraina / Sounion / Lavrion (Laurion), Schlackenfundstellen / Lavreotiki / East Attica / Attika (Attikí, Attica) / Griechenland
Ludlockit
Views (File:
1295642544
): 1467
Ludlockit
Größe: 8 mm; Fundort: Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia; Ex Wolfgang Henkel Sammlung
Copyright: Dan Weinrich; Contribution: Philip Blümner
Location: Namibia/Oshikoto (Otjikoto), Region/Tsumeb/Tsumeb Mine
Mineral: Ludlockite
Image: 1295642544
Rating: 8.5 (votes: 2)
License: Usage for Mineralienatlas project only
Ludlockit

Größe: 8 mm; Fundort: Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia; Ex Wolfgang Henkel Sammlung
Copyright: Dan Weinrich
Contribution: Philip Blümner 2011-01-21
Locality: Tsumeb Mine / Tsumeb / Oshikoto (Otjikoto), Region / Namibia
Ludlockit
Views (File:
1302709188
): 480
Ludlockit
Rotbraune kugelige Krusten , BB 2 mm. Fundort: Eckardthütte, Mansfelder Land, Sachsen-Anhalt,Deutschland.
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A022355, Donator: Peter Köhlen
Location: Deutschland/Sachsen-Anhalt/Mansfeld-Südharz, Landkreis/Mansfeld, Stadt/Mansfeld-Lutherstadt/Leimbach/Eckardthütte
Mineral: Ludlockite
Encyclopedia: Sammlung/Lithothek der Münchener Micromounter
Image: 1302709188
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Ludlockit (SNr: A022355)

Rotbraune kugelige Krusten , BB 2 mm. Fundort: Eckardthütte, Mansfelder Land, Sachsen-Anhalt,Deutschland.
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2011-04-13
Locality: Eckardthütte / Leimbach / Mansfeld-Lutherstadt / Mansfeld, Stadt / Mansfeld-Südharz, Landkreis / Sachsen-Anhalt / Deutschland
Ludlockit, Massicotit
Views (File:
1567858079
): 255
Ludlockit, Massicotit
Ludlockite sind an der Oberfläche meist von orangerotem Farbton. Darunter ist erkennt man aber gelbliche, nadelige xx. BB = 4 mm. Kupferkammer-Blei Hütte; Deutschland/Sachsen-Anhalt/Mansfeld-Südharz, Landkreis/Hettstedt/Kupferkammer
Copyright: horst knoll; Contribution: horst knoll
Collection: horst knoll
Location: Deutschland/Sachsen-Anhalt/Mansfeld-Südharz, Landkreis/Hettstedt/Burgörner-Altdorf/Kupferkammer
Mineral: Ludlockite
Image: 1567858079
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Ludlockit, Massicotit

Ludlockite sind an der Oberfläche meist von orangerotem Farbton. Darunter ist erkennt man aber gelbliche, nadelige xx. BB = 4 mm. Kupferkammer-Blei Hütte; Deutschland/Sachsen-Anhalt/Mansfeld-Südhar...
Collection: horst knoll
Copyright: horst knoll
Contribution: horst knoll 2019-09-07
Locality: Kupferkammer / Burgörner-Altdorf / Hettstedt / Mansfeld-Südharz, Landkreis / Sachsen-Anhalt / Deutschland

You find additional specimen at the Geolitho Museum

Collectors Summary

Color kupferrot
Streak color hellbraun
Hardness (Mohs) 1.75
Solubility +++ Säuren
Crystal System triklin, A1

Chemism

Chemical formula

Pb2+Fe43+(As53+O11)2

Chemical composition

Arsen, Blei, Eisen, Sauerstoff

Unit weight: 1531.79428 u; Number of atoms in the formula: 37

Info

Empirical formula:

PbFe4(As5O11)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

22.98

22

59.46

15.9994300

351.9874600
Iron

Fe

14.58

4

10.81

55.8452000

223.3808000
Arsenic

As

48.91

10

27.03

74.9216020

749.2160200
Lead

Pb

13.53

1

2.70

207.2100000

207.2100000

Analysis wt%

PbO : 14.57, Fe2O3 : 20.85, As2O3 : 64.58 (Ref: berechnet)

Strunz 9th edition incl. updates

4.JA.45

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
J: Antimonite, Bismuthite, Sulfite, Selenite, Tellurite
A: [Arsenite], [Antimonite], [Bismuthite]; ohne zusätzliche [Anionen], ohne H20
45:Ludlockit-Gruppe

Lapis Classification

IV/J.07-010

IV: OXIDE
J: Arsenite (mit As3+)
7: Arsenite mit [AsxOy]-Gruppen

Classification by Hölzel

5.JA.190

5: CARBONATES NITRATES ARSENITES SULFITES SELENITES TELLURITES IODATES
J: Arsenites
A: Arsenites (-Anions -Water)

Dana 8th edition

38.05.04.01

38: Anhydrous Phosphates, etc
05: Anhydrous Phosphates, etc with miscellaneous formulae

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

kupferrot

Streak color

hellbraun

max. Birefringence

0.15
Birefringence chart\! Ludlockite title=Birefringence chart Ludlockite

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

1.96

RI value β

2.055

RI value γ / ε

2.11>

2V angle

Biaxial (+) nd

Crystallography

Crystal System

triklin

Class (H-M)

1

Space Group number

2

Space Group

A1

Cell parameters a (Å)

10.426

Cell parameters b (Å)

12.074

Cell parameters c (Å)

18.439

Cell parameters a/b or c/a

0.864

Cell parameters c/b

1.527

Cell parameters α

101.83

Cell parameters β

100.35

Cell parameters γ

90.60

Z

4

Volume (ų)

2232.2

X-Ray Powder Diffraction

10.90(50),
8.81(100),
4.74(50),
3.330(70),
3.160(70),
2.978(30),
2.935(90),
2.863(70)
XRD chart Ludlockite

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)

1.75

VHN (Hardness Vickers)

24 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.35 - 4.4 / Durchschnittlich = 4.37

4.558 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Namibia/Oshikoto (Otjikoto), Region/Tsumeb/Tsumeb Mine

Preface

Name from

den Mineraliensammlern Ludlow Smith III und Locke Key

Author (Name, Year)

Davis & Embrey & Hey, 1970

References

Mineralogical Society of Japan Special Paper 1 (1970), 264

Other languages

German

Ludlockit

Spanish

Ludlockita

French

Ludlockite

English

Ludlockite

Russian

Лудлокит

Alternative Name

Ludlockite-(Pb)

CNMNC (IMA)-Number

IMA 1969-046

CNMNC symbol

Symbol

Ldl

Locations with GPS information

IDs

GUSID (Global unique identifier short form) fee6Ud70DkKBBFPgrl8Dyg
GUID (Global unique identifier) 51BAE77D-F4DE-420E-8104-53E0AE5F03CA
Database ID 2264