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Kristallgröße: 1,5 mm; Fundort: Buca della Vena, Stazzema, Apuanische Alpen, Provinz Massa-Carrara, Toskana, Italien
Copyright: slugslayer; Contribution: slugslayer
Location: Italien/Toskana (Toscana)/Massa-Carrara, Provinz/Stazzema/Buca della Vena
Mineral: Versiliaite
Image: 1374416994
License: Usage for Mineralienatlas project only
Versiliait

Kristallgröße: 1,5 mm; Fundort: Buca della Vena, Stazzema, Apuanische Alpen, Provinz Massa-Carrara, Toskana, Italien

Copyright: slugslayer
Contribution: slugslayer 2013-07-21
Locality: Buca della Vena / Stazzema / Massa-Carrara, Provinz / Toskana (Toscana) / Italien

Collectors Summary

Color schwarz
Streak color schwarz
Lustre Fettglanz
Hardness (Mohs) 4.75
Crystal System orthorhombisch, Pbam

Chemism

Chemical formula

(Fe2+,Fe3+,Zn)8(Sb3+,Fe3+,As)16O32S1.3

Chemical composition

Antimon, Arsen, Eisen, Zink, Sauerstoff, Schwefel

Unit weight: 2564.9083532 u; Number of atoms in the formula: 57.3

Info

Empirical formula:

(Fe0.6Fe0.3Zn0.1)8(Sb0.6Fe0.3As0.1)16O32S1.3

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

19.96

32

55.85

15.9994300

511.9817600

Sulfur

S

1.63

1.3

2.27

32.0655000

41.6851500

Iron

Fe

26.13

12

20.94

55.8452000

670.1424000

Zinc

Zn

2.04

0.8

1.40

65.4094000

52.3275200

Arsenic

As

4.67

1.6

2.79

74.9216020

119.8745632

Antimony

Sb

45.57

9.6

16.75

121.7601000

1,168.8969600

Strunz 9th edition incl. updates

4.JA.30

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
J: Antimonite, Bismuthite, Sulfite, Selenite, Tellurite
A: [Arsenite], [Antimonite], [Bismuthite]; ohne zusätzliche [Anionen], ohne H20
30:Versiliait

Lapis Classification

IV/B.06-030

IV: OXIDE
B: Oxide mit Verhältnis Metall zu Sauerstoff = 3:4 (Spinelltyp M3O4 und verwandte Verbindungen)

Classification by Hölzel

4.BF.140

4: OXIDES
B: Spinels R3O4
F: Trippkeite-Group

Dana 8th edition

45.01.10.01

45: Acid and normal Antimonites, Arsenites and Phosphites
01: Acid and normal Antimonites, Arsenites and Phosphites with miscellaneous formulae

IMA status

1978 anerkannt

Mineral status

anerkanntes Mineral

Optical Properties

Color

schwarz

Streak color

schwarz

Diaphaneity (Transparency)

opak

Lustre

Fettglanz

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

55

Space Group

Pbam

Cell parameters a (Å)

8.492

Cell parameters b (Å)

8.326

Cell parameters c (Å)

11.938

Cell parameters a/b or c/a

1.020

Cell parameters c/b

1.434

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

1

Volume (ų)

844.069

X-Ray Powder Diffraction

5.94(20),
3.196(100),
3.167(100),
2.972(80),
2.682(40),
1.946(40),
1.915(30),
1.652(30)

XRD chart Versiliaite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

4.75

VHN (Hardness Vickers)

330 (20g)

Density (g/cm³)

5.12

5.046 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Mellini, Merlino, Orlandi, 1979

References

American Mineralogist 64 (1979), 1230

American Mineralogist 64 (1979), 1235

Other languages

French

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German

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Spanish

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English

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Russian

Версилиаит

Japanese

ベルシリアイト

CNMNC (IMA)-Number

IMA 1978-068

CNMNC symbol

Symbol

Vsl

Locations with GPS information

IDs

GUSID (Global unique identifier short form) cpTMayYrIkiK0F7NjLsTpA
GUID (Global unique identifier) 6BCC9472-2B26-4822-8AD0-5ECD8CBB13A4
Database ID 4049