Picotpaulite Mineral Data

Picotpaulite Mineral Data
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General Picotpaulite Information

Help on Chemical Formula: Chemical Formula: TlFe2S3
Help on Composition: Composition: Molecular Weight = 412.28 gm
   Thallium  49.57 %  Tl
   Iron      27.09 %  Fe
   Sulfur    23.33 %  S
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: TlFe2+2S3
Help on Environment: Environment: Ina hydrothermal ore deposit with other arsenic minerals.
Help on IMA Status: IMA Status: Approved IMA 1970
Help on Locality: Locality: Allchar, Macedonia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Paul Picot (1931-), French mineralogist.
Help on Name Pronunciation: Name Pronunciation: Picotpaulite + Pronunciation Say PICOTPAULITE
 

Picotpaulite Image

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

Comments: SEM image of a polished secton of picotpaulite inclusions in realgar, most likely associated with lorandite as well.
Location: Allchar (Alsar), Roszdan, Republic of Macedonia. Scale: Picture Size 300 µm.
© Jeff Weissman / Photographic Guide to Mineral Species

Picotpaulite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.5037:1:0.8432
Help on Cell Dimensions: Cell Dimensions: a = 5.4, b = 10.72, c = 9.04, Z = 4; V = 523.31 Den(Calc)= 5.23
Help on Crystal System: Crystal System: Orthorhombic - DisphenoidalH-M Symbol (2 2 2) Space Group: C 222
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.912(1), 4.26(0.9), 3.8(0.7),
Click Here for Large Picotpaulite Structure Window Crystal Structure:

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drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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Balic-Zunic T , Karanovic L , Poleti D , Acta Chimica Slovenica , 55 (2008) p.801-809, Crystal structure of picotpaulite, TlFe2S3, from Allchar, FYR Macedonia, Locality: Allchar, FYR Macedonia

 

Physical Properties of Picotpaulite

Help on Color: Color: Bronze.
Help on Density: Density: 5.2
Help on Diaphaneity: Diaphaneity: Opaque
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Habit: Habit: Pseudo Hexagonal - Crystals show a hexagonal outline.
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Metallic
 

Optical Properties of Picotpaulite

Help on RL Anisotrophism: RL Anisotrophism: Strong, in gray-violet tints.
Help on RL Color: RL Color: Creamy white.
Help on RL Pleochroism: RL Pleochroism: Strong.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Picotpaulite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   23.50   28.70 
   
 420 nm   24.50   30.30 
 440 nm   25.50   31.90 
 460 nm   25.80   32.40 
 480 nm   25.40   32.00 
 500 nm   24.60   31.30 
 520 nm   24.30   31.00 
 540 nm   24.20   31.00 
 560 nm   24.40   31.40 
 580 nm   24.60   32.20 
 600 nm   25.20   33.10 
 620 nm   25.70   33.80 
 640 nm   26.50   34.70 
 660 nm   27.30   35.60 
 680 nm   28.20   36.60 
 700 nm   29.20   37.60 
Calculated Relative Intensity Colors of Picotpaulite in Air
Relative
Intensity		    0%   40%   80% 100% 120% 160% 200% 240% 280% 320% 360%
R1                      
R2                      
 

Calculated Properties of Picotpaulite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.59 gm/cc
note: Specific Gravity of Picotpaulite =5.23 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0074935311
Boson Index = 0.9925064689
Help on Photoelectric: Photoelectric: PEPicotpaulite = 840.76 barns/electron
U=PEPicotpaulite x rElectron Density=3,860.95 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Picotpaulite is Not Radioactive
 

Picotpaulite Classification
Help on Dana Class: Dana Class: 02.09.12.02 (02)Sulfides - Including Selenides and Tellurides
  (02.09)where Am Bn Xp, with (m+n):p=1:1
  (02.09.12)Dana Group
 
02.09.12.01 Sternbergite AgFe2S3 C mma 2/m 2/m 2/m
 
02.09.12.02 Picotpaulite TlFe2S3 C 222 2 2 2
Help on Strunz Class: Strunz Class: 02.CB.60 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.C - Metal Sulfides, M:S = 1:1 (and similar)
  02.CB -With Zn, Fe, Cu, Ag, Au, etc
 
02.CB.60 Picotpaulite TlFe2S3 C 222 2 2 2
 
02.CB.60 Raguinite TlFeS2 Unk Ortho
 

Other Picotpaulite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Picotpaulite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info

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

Picotpaulite

TlFe2S3
Dana No: 02.09.12.02 Strunz No: 02.CB.60
Locality:

 

Notes: