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Plumbotsumite

Pictures (2 Images total)

Plumbotsumit
Views (File:
1312663270
): 1647, Rating: 8.2
Plumbotsumit
Bildbreite: 0,5 mm; Fundort: Les Molérats Mine, Saint-Prix, Beuvray, Saône-et-Loire, Burgund, Frankreich
Copyright: Christian Rewitzer; Contribution: Hg
Location: Frankreich/Bourgogne-Franche-Comté, Region/Saône-et-Loire, Département/Autun, Arrondissement/Saint-Prix/Grube Les Molérats
Mineral: Plumbotsumite
Image: 1312663270
Rating: 8.2 (votes: 5)
License: Usage for Mineralienatlas project only
Plumbotsumit

Bildbreite: 0,5 mm; Fundort: Les Molérats Mine, Saint-Prix, Beuvray, Saône-et-Loire, Burgund, Frankreich
Copyright: Christian Rewitzer
Contribution: Hg 2011-08-06
Locality: Grube Les Molérats / Saint-Prix / Autun, Arrondissement / Saône-et-Loire, Département / Bourgogne-Franche-Comté, Region / Frankreich
Plumbotsumit
Views (File:
1261693335
): 966
Plumbotsumit
Bildbreite: 3 mm; Fundort: Les Molérats Mine, Saint-Prix, Beuvray, Saône-et-Loire, Burgund, Frankreich
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Frankreich/Bourgogne-Franche-Comté, Region/Saône-et-Loire, Département/Autun, Arrondissement/Saint-Prix/Grube Les Molérats
Mineral: Plumbotsumite
Image: 1261693335
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Plumbotsumit

Bildbreite: 3 mm; Fundort: Les Molérats Mine, Saint-Prix, Beuvray, Saône-et-Loire, Burgund, Frankreich
Copyright: Stephan Wolfsried
Contribution: Hg 2009-12-24
Locality: Grube Les Molérats / Saint-Prix / Autun, Arrondissement / Saône-et-Loire, Département / Bourgogne-Franche-Comté, Region / Frankreich

Collectors Summary

Color farblos
Streak color weiß
Hardness (Mohs) 2
Solubility +++ HNO3
Crystal System orthorhombisch, C2221

Chemism

Chemical formula

Pb5Si4O8(OH)10

Chemical composition

Blei, Silicium, Sauerstoff, Wasserstoff

Unit weight: 1446.46133 u; Number of atoms in the formula: 37

Info

Empirical formula:

Pb5Si4O8(OH)10

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.70

10

27.03

1.0079470

10.0794700
Oxygen

O

19.91

18

48.65

15.9994300

287.9897400
Silicon

Si

7.77

4

10.81

28.0855300

112.3421200
Lead

Pb

71.63

5

13.51

207.2100000

1,036.0500000

Analysis wt%

PbO : 76.70, SiO2 : 16.50, H2O : 6.20 (Ref: Chemie der Erde 82)

Strunz 9th edition incl. updates

9.HH.20

9: Silikate (Germanate)
H: Unklassifizierte Silikate
H: Mit [Blei] ([Pb])
20:Plumbotsumit-Gruppe

Lapis Classification

VIII/D.22-010

VIII: SILIKATE
D: Unklassifizierte Silikate
22: Vorwiegend große Kationen: Na-K-Ca-Sr-Pb

Classification by Hölzel

9.DO.250

9: SILICATES
D: Inosilicates; ~[Si2O6]4--...2-Chain
O: ~[Si4O12]8--...4-Chain Batisite-Group

Dana 8th edition

78.01.07.01

78: Unclassified Silicate Minerals
01: Unclassified silicates possible nesosilicates

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos

Streak color

weiß

Diaphaneity (Transparency)

transparent

max. Birefringence

0.016
Birefringence chart\! Plumbotsumite title=Birefringence chart Plumbotsumite

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

1.922

RI value β

1.933

RI value γ / ε

1.938

Ri mean

1.931

2V angle

Biaxial (-) 32°

Crystallography

Crystal System

orthorhombisch

Class (H-M)

222

Space Group number

20

Space Group

C2221

Cell parameters a (Å)

15.875

Cell parameters b (Å)

9.261

Cell parameters c (Å)

29.364

Cell parameters a/b or c/a

1.714

Cell parameters c/b

3.171

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

10

Volume (ų)

4317.048

X-Ray Powder Diffraction

14.70(70),
7.99(60),
4.63(50),
3.65(100),
3.12(80),
2.47(70),
1.633(60),
1.476(60)
XRD chart Plumbotsumite

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

2

VHN (Hardness Vickers)

32 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

5.6

5.563 ( ρ calc. Mineralienatlas )

Instability

+++ HNO3

(Co-)Type locality

(Co-)Type locality

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

Type material

Archiv der Universität Stuttgart, "Mineralogische Sammlung Prof. Keller"

Collection number of type material

TM-79.49-Ts / 0/824-s27/2

Paragenesis of type material

Alamosit, Melanotekit

Preface

Author (Name, Year)

Keller & Dunn, 1982

References

Chemie der Erde 41 (1982), 1

Other languages

German

Plumbotsumit

Spanish

Plumbotsumita

French

Plumbotsumite

English

Plumbotsumite

Russian

Плюмбоцумит

https://catalogmineralov.ru/mineral/plumbotsumite.html

CNMNC (IMA)-Number

IMA 1979-049

CNMNC symbol

Symbol

Ptm

Locations with GPS information

IDs

GUSID (Global unique identifier short form) LCmthJh3fk2xWGcvsOxyMQ
GUID (Global unique identifier) 84AD292C-7798-4D7E-B158-672FB0EC7231
Database ID 3092