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Duranusite

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Duranusit
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Duranusit
graumetallische Aggregate von Duranusit neben rotem Realgar, Duranus, Nizza, Alpes-Maritimes, Frankreich; BB ~ 2 mm
Copyright: Joy Desor; Contribution: openpit
Location: Frankreich/Provence-Alpes-Côte d'Azur, Region/Alpes-Maritimes, Département/Nizza (Nice), Arrondissement/Duranus
Mineral: Duranusite
Image: 1621670027
License: Usage for Mineralienatlas project only
Duranusit

graumetallische Aggregate von Duranusit neben rotem Realgar, Duranus, Nizza, Alpes-Maritimes, Frankreich; BB 2 mm

Copyright: Joy Desor
Contribution: openpit 2021-05-22
Locality: Duranus / Nizza (Nice), Arrondissement / Alpes-Maritimes, Département / Provence-Alpes-Côte d'Azur, Region / Frankreich

Collectors Summary

Color grau-weiß mit einem bräunlichen Farbton und bräunlich roten internen Reflektionen
Streak color schwarz
Hardness (Mohs) 2.5
Crystal System orthorhombisch,

Chemism

Chemical formula

As4S

Chemical composition

Arsen, Schwefel

Unit weight: 331.751908 u; Number of atoms in the formula: 5

Info

Empirical formula:

As4S

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

9.67

1

20.00

32.0655000

32.0655000

Arsenic

As

90.33

4

80.00

74.9216020

299.6864080

Analysis wt%

As : 90.40, S : 10.30 (Ref: Bulletin de Mineralogie 73)

Strunz 9th edition incl. updates

2.FA.05

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
F: Sulfide, Arsenide, Alkaide; Sulfide mit Halogeniden, Oxiden, Hydroxiden (H2O)
A: mit As, (Sb), S
05:Duranusit-Gruppe

Lapis Classification

II/F.02-010

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
F: Sulfide mit nichtmetallischem Charakter
2: Arsen-Sulfide

Classification by Hölzel

2.KA.100

2: SULFIDES
K: Nonmetallic Sulfides, HalideSulfides, etc.
A: With As,Sb,V
1: Realgar-Group

Dana 8th edition

02.01.04.01

02: Sulfide Minerals
01: Sulfides - Including Selenides and Tellurides where Am Xp, with m:p>3:1

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

grau-weiß mit einem bräunlichen Farbton und bräunlich roten internen Reflektionen

Streak color

schwarz

Diaphaneity (Transparency)

opak

Pleochroism

sehr schwach

Bireflectance

sehr schwach

Crystallography

Crystal System

orthorhombisch

Cell parameters a (Å)

3.576

Cell parameters b (Å)

6.759

Cell parameters c (Å)

10.074

Cell parameters a/b or c/a

0.529

Cell parameters c/b

1.490

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

2

Volume (ų)

243.49

X-Ray Powder Diffraction

5.620(90),
5.037(90),
3.016(70),
2.919(100),
2.808(70),
2.682(80),
1.969(90),
1.788(90)

XRD chart Duranusite

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

2.5

VHN (Hardness Vickers)

58 (25g)

Density (g/cm³)

4.5

4.525 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Frankreich/Provence-Alpes-Côte d'Azur, Region/Alpes-Maritimes, Département/Nizza (Nice), Arrondissement/Duranus/L'Eguisse Mine

Type material

Geowissenschaftliche Sammlungen des GZG, Göttingen

Collection number of type material

GZG.MIN.o.Nr. / UG023-025-Typusschränke Minerale

Paragenesis of type material

Realgar

Preface

Author (Name, Year)

Johan & Laforêt & Picot & Feraud, 1973

Márquez-Zavalía, F., Craig, J. R., Solberg, T. N., 1999

Safety Instructions

Industrial chemicals are often present in powder form and therefore often contain much higher dangers than natural, crystalline substances. These hazard statements refer to the classification of industrially used chemical compounds that may also occur in this natural mineral. The hazard classification makes no claim to completeness.




Safety classes: H301: Giftig bei Verschlucken., H331: Giftig bei Einatmen., H410: Sehr giftig für Wasserorganismen mit langfristiger Wirkung.

References

Bulletin de la Société Française Minéralogie et de Cristallographie 96 (1973), 131

The Canadian Mineralogist 37 (1999), 1255-1259

Bonazzi, P., Lepore, G.O., Bindi, L. - Molecular versus layered structure in arsenic sulphide minerals: The case of duranusite, As4S. European Journal of Mineralogy, 27 (2015), (in press)

Other languages

German

Duranusit

Spanish

Duranusita

French

Duranusite

English

Duranusite

Russian

Дюранюзит

Simplified Chinese

红硫砷矿

CNMNC (IMA)-Number

IMA 1973-003

CNMNC symbol

Symbol

Du

Locations with GPS information

IDs

GUSID (Global unique identifier short form) DgtfgE9urU2IisTgvlOyxQ
GUID (Global unique identifier) 805F0B0E-6E4F-4DAD-888A-C4E0BE53B2C5
Database ID 980