Ardaite Mineral Data + Say ARDAITE


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General Ardaite Information
Help on Chemical Formula: Chemical Formula: Pb19Sb13S35Cl7
Help on Composition: Composition: Molecular Weight = 6,890.03 gm
   Antimony  22.97 %  Sb
   Lead      57.14 %  Pb
   Sulfur    16.29 %  S
   Chlorine   3.60 %  Cl
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: Pb19Sb13S35Cl7
Help on Environment: Environment: In polymetallic ore deposits.
Help on IMA Status: IMA Status: Approved IMA 1980
Help on Locality: Locality: Madjarovo, Arda River, Bulgaria. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
 

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Ardaite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.0464:1:0.3813
Help on Cell Dimensions: Cell Dimensions: a = 22.09, b = 21.11, c = 8.05, Z = 2; beta = 103.02° V = 3,657.37 Den(Calc)= 6.26
Help on Crystal System: Crystal System: MonoclinicSpace Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2(1), 3.38(1), 3.4(1),
 

Physical Properties of Ardaite

Help on Color: Color: Green gray.
Help on Diaphaniety: Diaphaniety: Opaque
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Hardness: Hardness: 2.5-3 - Finger Nail-Calcite
Help on Luster: Luster: Metallic
 

Optical Properties of Ardaite

Help on RL Anisotrophism: RL Anisotrophism: Distinct.
Help on RL Pleochroism: RL Pleochroism: Distinct.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Ardaite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 440 nm   31.30   33.20 
   
 480 nm   32.10   34.40 
 520 nm   32.30   35.10 
 580 nm   31.70   34.70 
 620 nm   31.10   33.90 
 660 nm   30.60   32.80 
 700 nm   30.30   31.80 
Calculated Relative Intensity Colors of Ardaite in Air
Relative
Intensity		    0%   30%   60%   90% 100% 120% 150% 180% 210% 240% 270% 290%
R1                        
R2                        
 

Calculated Properties of Ardaite

Help on Electron Density: Electron Density:

relectron=5.27 gm/cc
note: rArdaite =6.26 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.12749
Boson Index = 0.87251
Help on Photoelectric: Photoelectric:

PEArdaite =1,123.48 barns/electron
U=PEArdaite x relectron=5,920.32 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Ardaite is Not Radioactive
 

Ardaite Classification
Help on Dana Class: Dana Class: 2.15.1.1 (2)Sulfides - Including Selenides and Tellurides
  (2.15)(Chlorides)
  (2.15.1)Dana Group
 
2.15.1.1 Ardaite Pb19Sb13S35Cl7 Unk Mono
Help on Strunz Class: Strunz Class: II/E.19-20 II - Sulfides and sulphosalts
  II/E - Sulfosalts (S : As,Sb,Bi = x) Lead-Sulfosalts with predominant Antimon x = 3.0 - 1.9
  II/E.19 - Falkmanite - Jaskolskiite series
 
II/E.19-10 Falkmanite Pb5Sb4S11 Mono
 
II/E.19-20 Ardaite Pb19Sb13S35Cl7 Unk Mono
 
II/E.19-30 Boulangerite Pb5Sb4S11 Unk Ortho
 
II/E.19-40 Plumosite* Pb2Sb2S5 Mono
 
II/E.19-42 Moeloite! Pb6Sb6S14(S3) P 21221 2 2 2
 
II/E.19-45 Pillaite! Pb9Sb10S23ClO0.5 C 2/m 2/m
 
II/E.19-50 Jaskolskiite Pb2xCux(Sb,Bi)2-xS5,x=0.2 Pbnm 2/m 2/m 2/m
 

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

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Ardaite

Pb19Sb13S35Cl7
Dana No: 2.15.1.1 Strunz No: II/E.19-20
Locality:

 

Notes:

 
 
   
 
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