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Vurroite

Collectors Summary

Color silbergrau
Lustre Metallglanz
Crystal System orthorhombisch, F2mm
Morphology nadelige Kristalle

Chemism

Chemical formula

Pb20Sn2(Bi,As)22S54Cl6

Empirical formula (analysis)

Pb18,95Sn1,30(Bi12,99As10,73Tl0,03)(S54,71Se0,22Cl5,00Br0,29)

Chemical composition

Arsen, Bismut, Blei, Chlor, Zinn, Schwefel

Unit weight: 9577.76241524 u; Number of atoms in the formula: 104.22

Info

Empirical formula:

Pb18.95Sn1.30(Bi12.99As10.73Tl0.03)(S54.71Se0.22Cl5.00Br0.29)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Sulfur

S

18.32

54.71

52.49

32.0655000

1,754.3035050
Chlorine

Cl

1.85

5

4.80

35.4532000

177.2660000
Arsenic

As

8.39

10.73

10.30

74.9216020

803.9087895
Selenium

Se

0.18

0.22

0.21

78.9630000

17.3718600
Bromine

Br

0.24

0.29

0.28

79.9041000

23.1721890
Tin

Sn

1.61

1.3

1.25

118.7107000

154.3239100
Thallium

Tl

0.06

0.03

0.03

204.3833200

6.1314996
Lead

Pb

41.00

18.95

18.18

207.2100000

3,926.6295000
Bismuth

Bi

28.34

12.99

12.46

208.9803820

2,714.6551622

Analysis wt%

Sn : 1.71, Pb : 40.92, Bi : 28.30, As : 8.38, S : 18.28, Cl : 1.85 (Ref: Canadian Mineralogist 2005)

Strunz 9th edition incl. updates

2.LB.45

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfoarsenide, Sulfoantimonide, Sulfobismuthide)
L: unklassifizierte Sulfosalze
B:
45:Vurroit-Gruppe

Lapis Classification

II/E.27-020

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
E: Sulfosalze (S : As,Sb,Bi = x)

Classification by Hölzel

2.GD.780

2: SULFIDES
G: SnS Archetype
D:
7: with boxwork structure

Dana 8th edition

03.06.23.01

03: Sulfides - Sulfosalts
06: Sulfides - Sulfosalts where 2 < z/y < 2.49 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals

IMA status

anerkannt 2003

Mineral status

anerkanntes Mineral

Optical Properties

Color

silbergrau

Change in color

Reflektiertes Licht: weiß, ohne interne Reflektionen

Diaphaneity (Transparency)

opak

Lustre

Metallglanz

Pleochroism

keiner

Bireflectance

keine

Anisotropism

schwach

Reflectivity: (Lambda nm) ↓, ↑, Ø

(470) 34.25, -, 34.25
(546) 32.95, -, 32.95
(589) 32.60, -, 32.60
(650) 31.10, -, 31.10
Reflection chart Vurroite

Reflectivity Ø

32.71

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mm2

Space Group number

42

Space Group

F2mm

Cell parameters a (Å)

8.371

Cell parameters b (Å)

45.502

Cell parameters c (Å)

27.273

Cell parameters a/b or c/a

0.184

Cell parameters c/b

0.599

Cell parameters α

90°

Cell parameters β

98.83

Cell parameters γ

90°

Z

4

Volume (ų)

10388.21

X-Ray Powder Diffraction

3.34(80), 3.17(60), 2.85(80), 2.69(80), 2.17(60), 2.10(70), 2.07(100), 2.04(50)
XRD chart Vurroite

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

Morphology

nadelige Kristalle

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

6.15

6.124 ( 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

Universität von Bari

Collection number of type material

6/nm

Preface

Occurrences

in Hochtemperaturfumarolen

Associations

Bismuthinit, Lillianit, Kirkiit, Heyrovskit, Galenit

Name from

Filippo Vurro, Professor der Mineralogie, Universität von Bari

Author (Name, Year)

Garavelli & Mozgova & Orlandi & Bonaccorsi & Pinto & Moëlo & Borodaev,

References

Canadian Mineralogist 43 (2005), 703

Other languages

German

Vurroit

English

Vurroite

French

Vurroite

Spanish

Vurroíta

Traditional Chinese

氯硫鉍錫鉛礦

Simplified Chinese

氯硫铋锡铅矿

CNMNC (IMA)-Number

IMA 2003-027

CNMNC symbol

Symbol

Vur

Locations with GPS information

IDs

GUSID (Global unique identifier short form) vdG-Dx4Q3k63rImCOmFX6A
GUID (Global unique identifier) 0FBED1BD-101E-4EDE-B7AC-89823A6157E8
Database ID 4478