Mineralogy Database

Freieslebenite Mineral Data

Search Webmineral :
  
Advertisment

General Freieslebenite Information

Help on Chemical  Formula: Chemical Formula: AgPbSbS3
Help on Composition: Composition: Molecular Weight = 533.02 gm
   Silver    20.24 %  Ag
   Antimony  22.84 %  Sb
   Lead      38.87 %  Pb
   Sulfur    18.05 %  S
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: AgPbSbS3
Help on Environment: Environment: Of hydrothermal origin.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1845
Help on Locality: Locality: Felsbanya and Kapnicbanya, Rumania. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For Johann Karl Freiesleben (1774-1846), Mining Commissioner of Saxony, Germany.
Help on Name Pronunciation: Name Pronunciation: Freieslebenite + Pronunciation Say FREIESLEBENITE
 

Freieslebenite Image

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

  Freieslebenite

Comments: Dark gray prismatic crystal of freieslebenite on quartz.
Location: Neue Hoffnung Gottes Mine, Bräunsdorf, Freiberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

Freieslebenite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.5887:1:0.4652
Help on Cell Dimensions: Cell Dimensions: a = 7.53, b = 12.79, c = 5.95, Z = 4; beta = 92.23° V = 572.60 Den(Calc)= 6.18
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/n
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.83(1), 3.48(0.8), 2.98(0.7),
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: ( 0 3 1) ( 1 1 0) ( 0 1 1) ( 1 0 0)

Warning: this java applet does not work in some browsers because of security restrictions.

 

Physical Properties of Freieslebenite

Help on Cleavage: Cleavage: {110} Indistinct
Help on Color: Color: Gray, Silver white, Blackish lead gray.
Help on Density: Density: 6.2 - 6.4, Average = 6.3
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Metallic
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: whitish gray
 

Optical Properties of Freieslebenite

Help on RL Anisotrophism: RL Anisotrophism: Just noticeable.
Help on RL Pleochroism: RL Pleochroism: Very weak.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Freieslebenite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   39.50   46.70 
   
 420 nm   39.40   46.00 
 440 nm   39.30   45.30 
 460 nm   39.10   44.60 
 480 nm   38.70   44.00 
 500 nm   38.20   43.40 
 520 nm   37.60   42.80 
 540 nm   37.00   42.30 
 560 nm   36.60   41.80 
 580 nm   36.20   41.40 
 600 nm   35.80   41.00 
 620 nm   35.40   40.50 
 640 nm   35.00   40.00 
 660 nm   34.50   39.50 
 680 nm   34.10   38.90 
 700 nm   33.60   38.30 
Calculated Relative Intensity Colors of Freieslebenite in Air
Relative
Intensity
   0%   30%   60%   90% 100% 120% 150% 180% 210% 240% 250%
R1                      
R2                      
 

Calculated Properties of Freieslebenite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.29 gm/cc
note: Specific Gravity of Freieslebenite =6.18 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.08
Boson Index = 0.92
Help on Photoelectric: Photoelectric: PEFreieslebenite = 831.05 barns/electron
U=PEFreieslebenite x rElectron Density=4,393.78 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Freieslebenite is Not Radioactive
 

Freieslebenite Classification

Help on  Dana Class: Dana Class: 03.04.06.02 (03)Sulfides - Sulfosalts
  (03.04)where z/y > 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (03.04.06)Dana Group
 
03.04.06.01 Marrite PbAgAsS3 P 21/a 2/m
 
03.04.06.02 Freieslebenite AgPbSbS3 P 21/n 2/m
Help on  Strunz Class: Strunz Class: 02.JB.15 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.J - Sulfosalts of PbS Archetype
  02.JB -Galena derivatives, with Pb
 
02.JB.15 Freieslebenite AgPbSbS3 P 21/n 2/m
 
02.JB.15 Marrite PbAgAsS3 P 21/a 2/m
 

Other Freieslebenite 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 Freieslebenite :
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

Search for Freieslebenite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Freieslebenite :

Ask about Freieslebenite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

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

Freieslebenite

AgPbSbS3
Dana No: 03.04.06.02 Strunz No: 02.JB.15
Locality:

 

Notes:

 

 
   
 


Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.