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Penfieldite (Penfieldit)

Pictures (19 Images total)

Penfieldit
Views (File:
1245930601
): 2501, Rating: 9.33
Penfieldit
Bildbreite: 1 mm; Fundort: Margarita Mine, Caracoles, Sierra Gorda District, Tocopilla, Provinz, II. Region, Chile
Copyright: Christian Rewitzer; Contribution: Hg
Location: Chile/Antofagasta, Region (II. Region)/Antofagasta, Provinz/Sierra Gorda/Caracoles/Margarita Mine
Mineral: Penfieldite
Image: 1245930601
Rating: 9.33 (votes: 6)
License: Usage for Mineralienatlas project only
Penfieldit

Bildbreite: 1 mm; Fundort: Margarita Mine, Caracoles, Sierra Gorda District, Tocopilla, Provinz, II. Region, Chile
Copyright: Christian Rewitzer
Contribution: Hg 2009-06-25
Locality: Margarita Mine / Caracoles / Sierra Gorda / Antofagasta, Provinz / Antofagasta, Region (II. Region) / Chile
Penfieldit
Views (File:
1448534969
): 987
Penfieldit
blockige, farblose Kristalle von Aghia Nicolaos in Laurion
Copyright: loparit; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A000406, Donator: Traute und Hannes Osterhammer
Location: Griechenland/Attika (Attikí, Attica)/East Attica/Lavreotiki/Lavrion (Laurion), Bergbaudistrikt/Velatouri/Agios Nikolaos (St. Nicholas)
Mineral: Penfieldite
Image: 1448534969
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Penfieldit (SNr: A000406)

blockige, farblose Kristalle von Aghia Nicolaos in Laurion
Collection: Lithothek der Münchener Micromounter
Copyright: loparit
Contribution: Münchener Micromounter 2015-11-26
Locality: Agios Nikolaos (St. Nicholas) / Velatouri / Lavrion (Laurion), Bergbaudistrikt / Lavreotiki / East Attica / Attika (Attikí, Attica) / Griechenland
Penfieldit
Views (File:
1305404745
): 1025
Penfieldit
Farblose viereckige säulige Kristalle, BB = 1,7 mm. Fundort: Lutherhütte, Leimbach, Mansfeld, Mansfeld-Südharz, Sachsen-Anhalt, Deutschland.
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A022864, Donator: Peter Köhlen
Location: Deutschland/Sachsen-Anhalt/Mansfeld-Südharz, Landkreis/Mansfeld, Stadt/Mansfeld-Lutherstadt/Leimbach/Lutherhütte
Mineral: Penfieldite
Encyclopedia: Sammlung/Lithothek der Münchener Micromounter
Image: 1305404745
Rating: 8 (votes: 2)
License: Usage for Mineralienatlas project only
Penfieldit (SNr: A022864)

Farblose viereckige säulige Kristalle, BB = 1,7 mm. Fundort: Lutherhütte, Leimbach, Mansfeld, Mansfeld-Südharz, Sachsen-Anhalt, Deutschland.
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2011-05-14
Locality: Lutherhütte / Leimbach / Mansfeld-Lutherstadt / Mansfeld, Stadt / Mansfeld-Südharz, Landkreis / Sachsen-Anhalt / Deutschland
Penfieldit
Views (File:
1564386499
): 216
Penfieldit
säulige Penfieldit xx , auf dem größten x ein granatförmiger unbekannter hellblaugrauer Kristall. BB = 4,5 mm 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: Penfieldite
Image: 1564386499
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Penfieldit

säulige Penfieldit xx , auf dem größten x ein granatförmiger unbekannter hellblaugrauer Kristall. BB = 4,5 mm Deutschland/Sachsen-Anhalt/Mansfeld-Südharz, Landkreis/Hettstedt/Kupferkammer
Collection: horst knoll
Copyright: horst knoll
Contribution: horst knoll 2019-07-29
Locality: Kupferkammer / Burgörner-Altdorf / Hettstedt / Mansfeld-Südharz, Landkreis / Sachsen-Anhalt / Deutschland
Penfieldit
Views (File:
1335277472
): 773
Penfieldit
Hexagonale prismatische farblose Kristalle, BB = 2,7 mm, Fundort: Passa Limani (Schlackenfundstelle), Lavrion, Attika, Griechenland.
Copyright: geni; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A003635, Donator: Dorothea Kulicke
Location: Griechenland/Attika (Attikí, Attica)/East Attica/Lavreotiki/Lavrion (Laurion), Schlackenfundstellen/Passa Limani/Passa Limani Bucht (Pacha Limani), Schlackenfundstelle
Mineral: Penfieldite
Image: 1335277472
Rating: 6.5 (votes: 2)
License: Usage for Mineralienatlas project only
Penfieldit (SNr: A003635)

Hexagonale prismatische farblose Kristalle, BB = 2,7 mm, Fundort: Passa Limani (Schlackenfundstelle), Lavrion, Attika, Griechenland.
Collection: Lithothek der Münchener Micromounter
Copyright: geni
Contribution: Münchener Micromounter 2012-04-24
Locality: Passa Limani Bucht (Pacha Limani), Schlackenfundstelle / Passa Limani / Lavrion (Laurion), Schlackenfundstellen / Lavreotiki / East Attica / Attika (Attikí, Attica) / Griechenland
Penfieldit
Views (File:
1379014202
): 627
Penfieldit
Prismatische hexagonale farblose Kristalle, BB = 3 mm, Fundort: Vrissaki Schlackenfundstelle, Lavrion, Attika, Griechenland.
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A003717, Donator: Dorothea Kulicke
Location: Griechenland/Attika (Attikí, Attica)/East Attica/Lavreotiki/Lavrion (Laurion), Bergbaudistrikt/Velatouri/Siri Minen/Cap Vrissaki
Mineral: Penfieldite
Image: 1379014202
Rating: 6.5 (votes: 2)
License: Usage for Mineralienatlas project only
Penfieldit (SNr: A003717)

Prismatische hexagonale farblose Kristalle, BB = 3 mm, Fundort: Vrissaki Schlackenfundstelle, Lavrion, Attika, Griechenland.
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2013-09-12
Locality: Cap Vrissaki / Siri Minen / Velatouri / Lavrion (Laurion), Bergbaudistrikt / Lavreotiki / East Attica / Attika (Attikí, Attica) / Griechenland

You find additional Penfieldit specimen at the Geolitho Museum

Collectors Summary

Color farblos, weiß, gelblich, bläulich
Streak color weiß
Hardness (Mohs) 3.5
Solubility +++ H2O, HNO3
Crystal System hexagonal, P6

Chemism

Chemical formula

Pb2Cl3(OH)

Chemical composition

Blei, Chlor, Sauerstoff, Wasserstoff

Unit weight: 537.786977 u; Number of atoms in the formula: 7

Info

Empirical formula:

Pb2Cl3(OH)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.19

1

14.29

1.0079470

1.0079470
Oxygen

O

2.98

1

14.29

15.9994300

15.9994300
Chlorine

Cl

19.78

3

42.86

35.4532000

106.3596000
Lead

Pb

77.06

2

28.57

207.2100000

414.4200000

Strunz 9th edition incl. updates

3.DC.15

3: Halide (Fluoride, Chloride, Bromide, Iodide)
D: Oxihalide, Hydroxyhalide und verwandte Doppel-Halide
C: Mit [Pb] ([As], [Sb], [Bi]) ohne [Cu]
15:Penfieldit-Gruppe

Lapis Classification

III/D.10-070

III: HALOGENIDE (Fluoride, Chloride, Bromide, Jodide)
D: Oxihalogenide
10: Oxihalogenide mit Pb-Bi-Sb und verwandte Verbindungen

Classification by Hölzel

3.EB.260

3: HALIDES
E: Halides with mostly Pb,As,Sb,Bi,Te
B: With Pb,Bi
2: Laurionite-Group

Dana 8th edition

10.04.01.01

10: Oxyhalides and Hydroxyhalides
04: Oxyhalides and Hydroxyhalides where (A)2 (O,OH) Xq

IMA status

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos, weiß, gelblich, bläulich

Streak color

weiß

Diaphaneity (Transparency)

transparent

max. Birefringence

0.08
Birefringence chart\! Penfieldite title=Birefringence chart Penfieldite

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

2.13

RI value γ / ε

2.21

Ri mean

2.157

2V angle

Uniaxial (+)

Optical Data Luminescence

Color LW-UV (365nm)

  

gelb

LW-UV Intensity

mittel

Color SW-UV (254nm)

  

gelb

SW-UV Intensity

stark

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

hexagonal

Class (H-M)

6

Space Group number

174

Space Group

P6

Cell parameters a (Å)

11.393

Cell parameters b (Å)

-

Cell parameters c (Å)

4.024

Cell parameters a/b or c/a

0.353

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

120°

Z

3

Volumne (ų)

452.34

X-Ray Powder Diffraction

5.66(50),
3.714(100),
3.282(50),
3.177(70),
2.732(50),
2.538(50),
2.263(70),
2.150(50)
XRD chart Penfieldite

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)

3.5

VHN (Hardness Vickers)

130 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

5.82

5.922 ( ρ calc. Mineralienatlas )

Instability

+++ H2O, HNO3

(Co-)Type locality

(Co-)Type locality

Griechenland/Attika (Attikí, Attica)/East Attica/Lavreotiki/Lavrion (Laurion), Schlackenfundstellen

Preface

Author (Name, Year)

Genth, 1892

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 431

Other languages

German

Penfieldit

Spanish

Penfieldita

English

Penfieldite

French

Penfieldite

Russian

Пенфильдит

CNMNC symbol

Symbol

Pfd

Locations with GPS information