Mineralogy Database

Lautite Mineral Data

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General Lautite Information

Help on Chemical  Formula: Chemical Formula: CuAsS
Help on Composition: Composition: Molecular Weight = 170.53 gm
   Copper   37.26 %  Cu
   Arsenic  43.93 %  As
   Sulfur   18.80 %  S
           ______ 
           100.00 % 
Help on Empirical Formula: Empirical Formula: CuAsS
Help on Environment: Environment: In hydrothermal veins formed at a moderate temperature.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1881
Help on Locality: Locality: Vater Abraham Mine (Shaft 139), Lauta, Marienberg District, Erzgebirge, Saxony, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its locality.
Help on Name Pronunciation: Name Pronunciation: Lautite Say LAUTITE
Help on Synonym: Synonym: ICSD 34450
  PDF 39-393
 

Lautite Image

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  Lautite

Comments: Metallic dark gray Lautite aggregate.
Location: Rudolph Shaft, Lauta, Marienberg District, Erzgebirge, Saxony, Germany. Scale: Specimen size 3 cm.
© Thomas Witzke / Abraxas-Verlag

Lautite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.6979:1:2.1031
Help on Cell Dimensions: Cell Dimensions: a = 3.79, b = 5.43, c = 11.42, Z = 4; V = 235.02 Den(Calc)= 4.82
Help on Crystal System: Crystal System: Orthorhombic - Disphenoidal H-M Symbol (2 2 2) Space Group: P 212121
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.1(1), 1.903(0.8), 1.61(0.6),
Help on Forms: Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize

Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu

Help on Above

Forms: ( 1 2 4) ( 0 3 4) ( 2 3 4) ( 1 0 2) ( 2 3 0) ( 0 0 1)

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Physical Properties of Lautite

Help on Cleavage: Cleavage: {001} Indistinct
Help on Color: Color: Grayish black, Black, Steel gray.
Help on Density: Density: 4.9
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Hardness: Hardness: 3-3.5 - Calcite-Copper Penny
Help on Luster: Luster: Metallic
Help on Streak: Streak: black
 

Optical Properties of Lautite

Help on RL Anisotrophism: RL Anisotrophism: Weak.
Help on RL Pleochroism: RL Pleochroism: Very weak.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Lautite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   36.00   37.60 
   
 420 nm   34.70   36.40 
 440 nm   33.40   35.20 
 460 nm   32.30   34.00 
 480 nm   31.40   33.10 
 500 nm   30.70   32.30 
 520 nm   30.50   31.70 
 540 nm   30.20   31.40 
 560 nm   30.10   31.20 
 580 nm   30.20   31.10 
 600 nm   30.30   31.20 
 620 nm   30.50   31.30 
 640 nm   30.80   31.50 
 660 nm   31.10   31.80 
 680 nm   31.50   32.00 
 700 nm   31.90   32.30 
Calculated Relative Intensity Colors of Lautite in Air
Relative
Intensity
   0%   30%   60%   90% 100% 120% 150% 180% 210% 240% 270% 290%
R1                        
R2                        
 

Calculated Properties of Lautite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.41 gm/cc
note: Specific Gravity of Lautite =4.82 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0014102499
Boson Index = 0.9985897501
Help on Photoelectric: Photoelectric: PELautite = 49.18 barns/electron
U=PELautite x rElectron Density= 216.84 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Lautite is Not Radioactive
 

Lautite Classification

Help on  Dana Class: Dana Class: 02.12.08.01 (02)Sulfides - Including Selenides and Tellurides
  (02.12)where Am Bn Xp, with (m+n):p=1:2
  (02.12.08)Dana Group
 
02.12.08.01 Lautite CuAsS P 212121 2 2 2
Help on  Strunz Class: Strunz Class: 02.CB.40 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.40 Lautite CuAsS P 212121 2 2 2
 

Other Lautite Information

Help on References: References: NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Lautite :
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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Lautite

CuAsS
Dana No: 02.12.08.01 Strunz No: 02.CB.40
Locality:

 

Notes:

 

 
   
 


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