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Mozgovaite (Mozgovait)

Collectors Summary

Color silbergrau
Streak color grau
Lustre Metallglanz
Hardness (Mohs) 2.5 - 3.5
Crystal System orthorhombisch, Bbmm

Chemism

Chemical formula

PbBi4S7

Empirical formula (analysis)

(Pb0.87Cd0.03)Σ0.9(Bi4.01As0.01)Σ4.02(S6.82Se0.27)Σ7.09

Chemical composition

Bismut, Blei, Schwefel

Unit weight: 1262.41232184 u; Number of atoms in the formula: 12.01

Info

Empirical formula:

(Pb0.87Cd0.03)(Bi4.01As0.01)(S6.82Se0.27)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Sulfur

S

17.32

6.82

56.79

32.0655000

218.6867100
Arsenic

As

0.06

0.01

0.08

74.9216020

0.7492160
Selenium

Se

1.69

0.27

2.25

78.9630000

21.3200100
Cadmium

Cd

0.27

0.03

0.25

112.4118000

3.3723540
Lead

Pb

14.28

0.87

7.24

207.2100000

180.2727000
Bismuth

Bi

66.38

4.01

33.39

208.9803820

838.0113318

Analysis wt%

Ø Pb : 13.90, Bi : 64.79, S : 16.91, Se : 1.63 (Ref: berechnet)

Strunz 9th edition incl. updates

2.JA.05

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
J: Sulfosalze mit PbS als Vorbild
A: Ketten als Flächen verbunden
05:Makovickyit-Pavonit-Serie

Lapis Classification

II/E.34-008

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
E: Sulfosalze (S : As,Sb,Bi = x)
34: Blei-Sulfosalze mit Wismut (x= 6,0 - 1,6); Galenobismutit-Reihe

Classification by Hölzel

2.HB.130

2: SULFIDES
H: PbS Archetype
B: With only Pb
1: Galenobismutite Series

Dana 8th edition

03.03.03.02

03: Sulfides - Sulfosalts
03: Sulfides - Sulfosalts where 3 < z/y < 4 - (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

silbergrau

Streak color

grau

Diaphaneity (Transparency)

opak

Lustre

Metallglanz

Pleochroism

keiner

Bireflectance

schwach

Anisotropism

deutlich, Innenreflexe fehlen

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

63

Space Group

Bbmm

Cell parameters a (Å)

13.18

Cell parameters b (Å)

37.4

Cell parameters c (Å)

4.05

Cell parameters a/b or c/a

0.352

Cell parameters c/b

0.108

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

6

Volumne (ų)

1996.375

X-Ray Powder Diffraction

3.80(100),
3.58(30),
3.40(20),
3.30(30),
2.95(40),
2.92(20),
2.81(20),
2.34(40)
XRD chart Mozgovaite

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

Physical Properties

Hardness (Mohs)

2.5 - 3.5

VHN (Hardness Vickers)

116 (10g)

Density (g/cm³)

6.26 (berechnet)

6.3 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Italien/Sizilien (Sicilia), Region/Messina, Provinz/Äolische (Liparische) Inseln (Isole Eolie; Isole Lipari)/Vulcano, Insel/La Fossa Krater

Type material

Mineralogical Museum of the University of Bari

Collection number of type material

5/nm

Preface

Occurrences

Hochtemperatur-Fumarolen

Associations

Bismuthinit, Galenobismutit, Cannizzarit, Lillianit

Name from

Nadezhda Nikolaevna Mozgova, russische Erzineralogin an der Akadademie der Wissenschaften in Moskau (1931-)

Author (Name, Year)

Vurro & Garavelli & Garbarino & Moëlo & Borodaev, 1999

References

Canadian Mineralogist 37 (1999), 1499

CNMNC Newsletter No. 50; Mineralogical Magazine, 31 [Formel]

Other languages

German

Mozgovait

English

Mozgovaite

French

Mozgovaite

Spanish

Mozgovaíta

CNMNC (IMA)-Number

IMA 1998-060

CNMNC symbol

Symbol

Mzg

Locations with GPS information