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Volaschioite

Collectors Summary

Crystal System monoklin, C2/m

Chemism

Chemical formula

Fe4(SO4)O2(OH)6·2H2O

Chemical composition

Eisen, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 489.51779 u; Number of atoms in the formula: 29

Info

Empirical formula:

Fe4(SO4)O2(OH)6·2H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

2.06

10

34.48

1.0079470

10.0794700

Oxygen

O

45.76

14

48.28

15.9994300

223.9920200

Sulfur

S

6.55

1

3.45

32.0655000

32.0655000

Iron

Fe

45.63

4

13.79

55.8452000

223.3808000

Analysis wt%

SO3 : 16.36, Fe2O3 : 65.24, H2O : 18.40 (Ref: berechnet)

Strunz 9th edition incl. updates

7.DE.62

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
D: Sulfate (Selenate, etc.) mit weitere Anionen, mit H2O
E: mit mittelgroßen Kationen; unklassifiziert
62:

Lapis Classification

VI/D.01-032

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
D: Wasserhaltige Sulfate, mit fremden Anionen
1: Mittelgroße Kationen

Classification by Hölzel

7.DB.700

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
D: Sulfates (+Anions +Water)
B: Langite-Group

IMA status

anerkannt - CNMNC Newsletter, June 2010

Mineral status

anerkanntes Mineral

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell parameters a (Å)

16.085

Cell parameters b (Å)

3.054

Cell parameters c (Å)

10.929

Cell parameters a/b or c/a

5.267

Cell parameters c/b

3.579

Cell parameters α

90°

Cell parameters β

93.78

Cell parameters γ

90°

Z

2

Volume (ų)

535.704

Crystal structure

Neuer Strukturtyp, Synthethische Phase bekannt, Struktur bestimmt

X-Ray Powder Diffraction

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

3.035 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Italien/Toskana (Toscana)/Lucca, Provinz/Apuanische Alpen/Vergemoli/Fornovolasco/Cava del Ferro (Trimpello)

Type material

Museo di Storia Naturale e del Territorio, University of Pisa, Via Roma 79, Calci (PI), Italy

Collection number of type material

Katalognummer 19300

Preface

Author (Name, Year)

Biagioni, C., Bonaccorsi, E. und Orlandi, P. (2010)

References

C. Biagioni (2010): Volaschioite (IMA 2010-005) and associated iron sulphates from the Fornovolasco mine (Apuan Alps, Tuscany, Italy). 89° Congresso SIMP.

CNMNC Newsletter, June 2010, page 577; Mineralogical Magazine, 74, 577-579.

Other languages

German

Volaschioit

English

Volaschioite

CNMNC (IMA)-Number

IMA 2010-005

CNMNC symbol

Symbol

Vsh

Locations with GPS information

IDs

GUSID (Global unique identifier short form) CvjQ01Iu1k2S1oPMTD7CPQ
GUID (Global unique identifier) D3D0F80A-2E52-4DD6-92D6-83CC4C3EC23D
Database ID 6903