Versiliaite Mineral Data

Versiliaite Mineral Data
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General Versiliaite Information

Help on Chemical Formula: Chemical Formula: Fe++4Fe+++8Sb+++12O23S2
Help on Composition: Composition: Molecular Weight = 2,563.28 gm
   Iron      26.14 %  Fe   11.21 % FeO / 24.92 % Fe2O3
   Antimony  57.00 %  Sb   68.23 % Sb2O3
   Sulfur     2.50 %  S     2.50 % S2-
               -   %  S    -1.25 % -O=S 
   Oxygen    14.36 %  O
            ______        ______ 
            100.00 %      105.62 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe2+4Fe3+8Sb12O23S2
Help on Environment: Environment: In an iron deposit in barite formed by metasomatic processes at the contact between phyllites and dolostones.
Help on IMA Status: IMA Status: Approved IMA 1979
Help on Locality: Locality: Buca della Vena mine, Versilia valley, Apuan Alps, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Versiliaite + Pronunciation Say VERSILIAITE
Help on Synonym: Synonym: ICSD 100540
  PDF 33-698
 

Versiliaite Image

Click Here for Larger Versiliaite Image in a New Browser Window Images:
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Versiliaite

Comments: Black sub-metallic versiliaite masses in marble.
Location: Bucca della Vena Mine, Val di Castello Carducci, Tuscany, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Versiliaite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.0207:1:1.4334
Help on Cell Dimensions: Cell Dimensions: a = 8.499, b = 8.326, c = 11.935, Z = 1; V = 844.55 Den(Calc)= 5.04
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pbam ?
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.196(1), 3.16(0.97), 2.972(0.81),
Click Here for Large Versiliaite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
 Help on Above


Mellini M , Merlino S , American Mineralogist , 64 (1979) p.1235-1242, Versiliaite and apuanite: Derivative structures related to schafarzikite

 

Physical Properties of Versiliaite

Help on Cleavage: Cleavage: {110} Perfect
Help on Color: Color: Black.
Help on Density: Density: 5.12
Help on Diaphaneity: Diaphaneity: Opaque
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Hardness: Hardness: 5 - Apatite
Help on Luster: Luster: Metallic
Help on Streak: Streak: black
 

Optical Properties of Versiliaite

Help on Optical Data: Optical Data: Uniaxial (?).
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Versiliaite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 470 nm   18.50   19.40 
   
 546 nm   18.50   17.80 
 589 nm   18.30   16.90 
 650 nm   17.70   16.20 
Calculated Relative Intensity Colors of Versiliaite in Air
Relative
Intensity		    0%   60% 100% 120% 180% 240% 300% 360% 420% 480% 520%
R1                      
R2                      
 

Calculated Properties of Versiliaite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.48 gm/cc
note: Specific Gravity of Versiliaite =5.04 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0057992445
Boson Index = 0.9942007555
Help on Photoelectric: Photoelectric: PEVersiliaite = 197.10 barns/electron
U=PEVersiliaite x rElectron Density= 883.60 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Versiliaite is Not Radioactive
 

Versiliaite Classification
Help on Dana Class: Dana Class: 45.01.10.01 (45)Acid and normal Antimonites, Arsenites and Phosphites
  (45.01)with miscellaneous formulae
  (45.01.10)Dana Group
 
45.01.10.01 Versiliaite Fe4Fe8Sb12O23S2 Pbam ? 2/m 2/m 2/m
Help on Strunz Class: Strunz Class: 04.JA.30 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.J - Arsenites, Antimonites, Bismuthites, Sulfites,
  04.JA -Arsenites, antimonites, bismuthites; without additional anions, without H2O
 
04.JA.30 Versiliaite Fe4Fe8Sb12O23S2 Pbam ? 2/m 2/m 2/m
 

Other Versiliaite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3)
Help on See Also: See Also: Links to other databases for Versiliaite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Ask about Versiliaite here :
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Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espaņol

Print or Cut-and-Paste your Versiliaite Specimen Label here :

Versiliaite

Fe++4Fe+++8Sb+++12O23S2
Dana No: 45.01.10.01 Strunz No: 04.JA.30
Locality:

 

Notes: