Versiliaite
A valid IMA mineral species
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About Versiliaite
Formula:
Fe2Fe4Sb6O16S
Colour:
Black
Lustre:
Metallic
Hardness:
5
Specific Gravity:
5.12
Crystal System:
Orthorhombic
Member of:
Name:
Named after its discovery locality in the Versilia Valley, Tuscany, Italy.
Unique Identifiers
Mindat ID:
4173
Long-form identifier:
mindat:1:1:4173:3
IMA Classification of Versiliaite
Approved
IMA Formula:
(Fe2+2Fe3+2)(Fe3+2Sb3+6)O16S2-
Approval year:
1978
First published:
1979
Classification of Versiliaite
4.JA.30
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
A : Arsenites, antimonites, bismuthites; without additional anions, without H2O
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
A : Arsenites, antimonites, bismuthites; without additional anions, without H2O
45.1.10.1
45 : ACID AND NORMAL ANTIMONITES AND ARSENITES
1 : Miscellaneous
45 : ACID AND NORMAL ANTIMONITES AND ARSENITES
1 : Miscellaneous
4.11
4 : Oxysulphides
4 : Oxysulphides
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Vsl | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Versiliaite
Metallic
Transparency:
Opaque
Colour:
Black
Hardness:
5 on Mohs scale
Hardness:
VHN20=330 kg/mm2 - Vickers
Cleavage:
Perfect
(110)
(110)
Density:
5.12 g/cm3 (Measured) 5.32 g/cm3 (Calculated)
Comment:
Measured using torsion balance
Optical Data of Versiliaite
Type:
Uniaxial
Reflectivity:
| Wavelength | R1 (%) | R2 (%) |
|---|---|---|
| 470nm | 18.5% | 19.4% |
| 546nm | 18.5% | 17.8% |
| 589nm | 18.3% | 16.9% |
| 650nm | 17.7% | 16.2% |
Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 19.4%.
R1 shown in black, R2 shown in red
Chemistry of Versiliaite
Mindat Formula:
Fe2Fe4Sb6O16S
Element Weights:
Elements listed:
Common Impurities:
Zn,As
Crystallography of Versiliaite
Crystal System:
Orthorhombic
Class (H-M):
mmm(2/m2/m2/m) - Dipyramidal
Space Group:
Pbam
Setting:
Pbam
Cell Parameters:
a = 8.492(5) Å, b = 8.326(5) Å, c = 11.938(7) Å
Ratio:
a:b:c = 1.02 : 1 : 1.434
Unit Cell V:
844.07 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Platy on (001)
Crystal Structure
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2x2x2 | 3x3x3 | 4x4x4
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0000750 | Versiliaite | Mellini M, Merlino S (1979) Versiliaite and apuanite: Derivative structures related to schafarzikite American Mineralogist 64 1235-1242 |  | 1979 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 5.94 Å | (25) |
| 3.196 Å | (100) |
| 3.167 Å | (97) |
| 2.972 Å | (81) |
| 2.682 Å | (40) |
| 1.946 Å | (40) |
| 1.652 Å | (33) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 5: Initiation of plate tectonics | <3.5-2.5 |
| 40 : Regional metamorphism (greenschist, amphibolite, granulite facies) |
Type Occurrence of Versiliaite
General Appearance of Type Material:
Massive black aggregates in veinlets within thin layers of dolomite
Place of Conservation of Type Material:
University of Pisa, Pisa, Italy, 3211.
Geological Setting of Type Material:
An iron ore deposit in barite formed by metasomatic processes at the contact between phyllites and dolomite.
Associated Minerals at Type Locality:
Synonyms of Versiliaite
Other Language Names for Versiliaite
Relationship of Versiliaite to other Species
Member of:
Common Associates
Associations Based on Photo Data:
Related Minerals - Strunz-mindat Grouping
| 4.JA.05 | Leiteite | Zn(As2O4) |
| 4.JA.10 | Reinerite | Zn3(AsO3)2 |
| 4.JA.15 | Karibibite | Fe3+3(As3+O2)4(As3+2O5)(OH) |
| 4.JA.20 | Manganoschafarzikite | MnSb2O4 |
| 4.JA.20 | Trippkeite | Cu2+As3+2O4 |
| 4.JA.20 | Schafarzikite | Fe2+Sb3+2O4 |
| 4.JA.20 | Kusachiite | CuBi2O4 |
| 4.JA.20 | Igelströmite | Fe3+(Sb3+Pb2+)O4 |
| 4.JA.25 | Apuanite | Fe2+Fe3+4Sb3+4O12S |
| 4.JA.35 | Schneiderhöhnite | Fe2+Fe3+3As3+5O13 |
| 4.JA.40 | Zimbabweite | (Na,K)2PbAs4(Ta,Nb,Ti)4O18 |
| 4.JA.45 | Ludlockite | PbFe3+4As3+10O22 |
| 4.JA.50 | Paulmooreite | Pb2[As2O5] |
| 4.JA.55 | Stibivanite | Sb2VO5 |
| 4.JA.60 | Chadwickite | (UO2)[HAsO3] |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Versiliaite
mindat.org URL:
https://www.mindat.org/min-4173.html
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References for Versiliaite
Reference List:
Mellini, Marcello, Merlino, Stefano, Orlandi, Paolo (1979) Versiliaite and apuanite, two new minerals from the Apuan Alps, Italy. American Mineralogist, 64 (11-12) 1230-1234
Mellini, Marcello, Merlino, Stefano (1979) Versiliaite and apuanite: derivative structures related to schafarzikite. American Mineralogist, 64 (11-12) 1235-1242
Mellini, Marcello, Merlino, Stefano, Orlandi, Paolo (1979) Versiliaite and apuanite, two new minerals from the Apuan Alps, Italy. American Mineralogist, 64 (11-12) 1230-1234
Localities for Versiliaite
Showing 1 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Italy (TL) | |
| Mellini et al. (1979) +1 other reference |
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Buca della Vena Mine, Pontestazzemese, Stazzema, Lucca Province, Tuscany, Italy