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Pierrotite (Pierrotit)

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Pierrotit
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Pierrotit
graumetallische Einschlüsse von Pierrotit, Jas Roux, La Chapelle-en-Valgaudemar, Hautes-Alpes, Provence-Alpes-Cote d'Azur, Frankreich; BB ~ 3 mm
Copyright: Joy Desor; Contribution: openpit
Location: Frankreich/Provence-Alpes-Côte d'Azur, Region/Hautes-Alpes, Département/Gap, Arrondissement/La Chapelle-en-Valgaudémar/Jas Roux
Mineral: Pierrotite
Image: 1586718038
License: Usage for Mineralienatlas project only
Pierrotit

graumetallische Einschlüsse von Pierrotit, Jas Roux, La Chapelle-en-Valgaudemar, Hautes-Alpes, Provence-Alpes-Cote d'Azur, Frankreich; BB 3 mm
Copyright: Joy Desor
Contribution: openpit 2020-04-12
Locality: Jas Roux / La Chapelle-en-Valgaudémar / Gap, Arrondissement / Hautes-Alpes, Département / Provence-Alpes-Côte d'Azur, Region / Frankreich

Collectors Summary

Color weiß, mit roten internen Reflektionen, dunkelrot in aufgestrahltem Licht
Streak color rötlich schwarz
Hardness (Mohs) 3.5
Crystal System orthorhombisch, Pna21

Chemism

Chemical formula

Tl2Sb6As4S16

Chemical composition

Antimon, Arsen, Thallium, Schwefel

Unit weight: 1952.061648 u; Number of atoms in the formula: 28

Info

Empirical formula:

Tl2Sb6As4S16

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Sulfur

S

26.28

16

57.14

32.0655000

513.0480000
Arsenic

As

15.35

4

14.29

74.9216020

299.6864080
Antimony

Sb

37.43

6

21.43

121.7601000

730.5606000
Thallium

Tl

20.94

2

7.14

204.3833200

408.7666400

Analysis wt%

Ø Tl : 17.40, Sb : 46.40, As : 8.90, S : 26.80 (Ref: Bulletin de Mineralogie 70)

Strunz 9th edition incl. updates

2.HC.05

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
H: Sulfosalze mit SnS als Vorbild
C: Nur mit [Blei] (Pb)
05:Sartorit-Gruppe

Lapis Classification

II/E.14-030

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
E: Sulfosalze (S : As,Sb,Bi = x)
14: Sulfosalze mit Thallium/Quecksilber vorherrschend (x=4,0 - 1,6)

Classification by Hölzel

2.FC.550

2: SULFIDES
F: Sulfarsenites, Sulfantimonites, Sulfbismuthinites Trigonal Pyramids ~[AsS3]3-, ~[SbS3]3-, ~[BiS3]3-
C: Poly Sulfarsenites
5: Tekto Sulfarsenites

Dana 8th edition

03.08.07.01

03: Sulfides - Sulfosalts
08: Sulfides - Sulfosalts where 1 < 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 roten internen Reflektionen, dunkelrot in aufgestrahltem Licht

Streak color

rötlich schwarz

Diaphaneity (Transparency)

opak

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mm2

Space Group number

33

Space Group

Pna21

Cell parameters a (Å)

38.746

Cell parameters b (Å)

8.816

Cell parameters c (Å)

7.989

Cell parameters a/b or c/a

4.395

Cell parameters c/b

0.906

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volumne (ų)

2728.92

X-Ray Powder Diffraction

3.63(80),
3.59(100),
3.49(90),
2.84(80),
2.70(90),
2.52(60),
2.47(60),
2.347(80)
XRD chart Pierrotite

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)

161 (50g)

Density (g/cm³)

4.97

4.751 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Frankreich/Provence-Alpes-Côte d'Azur, Region/Hautes-Alpes, Département/Gap, Arrondissement/La Chapelle-en-Valgaudémar/Jas Roux

Preface

Author (Name, Year)

Guillemin & Johan & Laforêt & Picot, 1970

References

Bulletin de la Société Française Minéralogie et de Cristallographie 93 (1970), 66

Other languages

German

Pierrotit

Spanish

Pierrotita

French

Pierrotite

English

Pierrotite

Russian

Пьерротит

Simplified Chinese

硫锑铊矿

Japanese

ﾋﾟｴﾛｰﾀｲﾄ

CNMNC (IMA)-Number

IMA 1969-036

CNMNC symbol

Symbol

Pie

Locations with GPS information