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Pizgrischite Mineral Data

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General Pizgrischite Information

Help on Chemical  Formula: Chemical Formula: (Cu,Fe)Cu14PbBi17S35
Help on Composition: Composition: Molecular Weight = 5,853.00 gm
   Iron       0.76 %  Fe
   Copper    16.55 %  Cu
   Bismuth   60.95 %  Bi
   Antimony   0.35 %  Sb
   Lead       2.12 %  Pb
   Selenium   0.04 %  Se
   Sulfur    19.22 %  S
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: Cu15.24Fe2+0.8Pb0.6Bi17.07Sb0.17S35.09Se0.03
Help on Environment: Environment: Formed as the result of the Alpine metamorphism under greenschist-facies conditions of pre-Tertiary hydrothermal Cu-Bi mineralization. Related to cuprobismutite.
Help on IMA Status: IMA Status: Approved IMA 2001 (Dana # Added)
Help on Locality: Locality: Piz Grisch Mountain, Val Ferrera, Graub�nden, Switzerland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Synonym: Synonym: IMA2001-002
 

Pizgrischite Image

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  Pizgrischite

Comments: Pizgrischite crystals spray partially altered into malachite (green) and bismutite (yellow) in a fine-grained quartz matrix. (CanMin, v45:1229).
Location: Piz Grisch Mountain, Val Ferrera, Graubünden, Switzerland. Scale: Picture size 4 cm.
© Canadian Mineralogist

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  Pizgrischite

Comments: SEM images of twinned pizgrischite crystals extracted from quartz matrix by treatment with dilute hydrofluoric acid. (CanMin, v45:1229).
Location: Piz Grisch Mountain, Val Ferrera, Graubünden, Switzerland. Scale: See Image.
© S. Ansermet/Canadian Mineralogist

Pizgrischite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =8.9623:1:11.043
Help on Cell Dimensions: Cell Dimensions: a = 35.054, b = 3.91123, c = 43.192, Z = 4; beta = 96.713° V = 5,881.21 Den(Calc)= 6.61
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 1.956(1), 3.104(0.68), 2.759(0.53),4.08(0.5), 2.752(0.44), 3.12(0.4), 5.364(0.4),
 

Physical Properties of Pizgrischite

Help on Cleavage: Cleavage: {001} Perfect, {010} Very Good
Help on Color: Color: Lead gray.
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Striated - Parallel lines on crystal surface or cleavage face.
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luster: Luster: Metallic
Help on Streak: Streak: grayish black
 

Optical Properties of Pizgrischite

Help on RL Anisotrophism: RL Anisotrophism: Weak in dark brown.
Help on RL Bireflectance: RL Bireflectance: Not apparent.
Help on RL Color: RL Color: Dark brown in oil.
Help on RL Pleochroism: RL Pleochroism: Not apparent.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Pizgrischite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   39.90   40.90 
   
 420 nm   40.20   41.20 
 440 nm   40.40   41.50 
 460 nm   40.60   42.00 
 470 nm   40.70   42.10 
 480 nm   40.80   42.40 
 500 nm   41.00   42.70 
 520 nm   41.10   42.90 
 540 nm   41.10   43.00 
 546 nm   41.20   43.10 
 560 nm   41.10   43.10 
 580 nm   41.10   43.10 
 589 nm   41.20   43.30 
 600 nm   41.10   43.20 
 620 nm   41.10   43.40 
 640 nm   40.90   43.40 
 650 nm   40.70   43.30 
 660 nm   40.50   43.20 
 680 nm   40.30   43.10 
 700 nm   40.10   43.00 
Standardized Intensity (100%) Reflection Spectra of Pizgrischite in Oil
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   24.80   25.80 
   
 420 nm   25.00   26.00 
 440 nm   25.05   26.20 
 460 nm   25.20   26.50 
 470 nm   25.30   26.75 
 480 nm   25.35   27.00 
 500 nm   25.40   27.15 
 520 nm   25.40   27.25 
 540 nm   25.45   27.40 
 546 nm   25.40   27.40 
 560 nm   25.40   27.45 
 580 nm   25.30   27.45 
 589 nm   25.40   27.50 
 600 nm   25.30   27.55 
 620 nm   25.25   27.55 
 640 nm   25.05   27.60 
 650 nm   25.00   27.55 
 660 nm   24.85   27.50 
 680 nm   24.70   27.30 
 700 nm   24.60   27.15 
Calculated Relative Intensity Colors of Pizgrischite in Air
Relative
Intensity
   0%   30%   60%   90% 100% 120% 150% 180% 210% 220%
R1                    
R2                    
Calculated Relative Intensity Colors of Pizgrischite in Oil
Relative
Intensity
   0%   40%   80% 100% 120% 160% 200% 240% 280% 320% 350%
R1                      
R2                      
 

Calculated Properties of Pizgrischite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.65 gm/cc
note: Specific Gravity of Pizgrischite =6.61 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.006329143
Boson Index = 0.993670857
Help on Photoelectric: Photoelectric: PEPizgrischite =1,197.20 barns/electron
U=PEPizgrischite x rElectron Density=6,759.94 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Pizgrischite is Not Radioactive
 

Pizgrischite Classification

Help on  Dana Class: Dana Class: 03.06.21.01 (03)Sulfides - Sulfosalts
  (03.06)where 2 < z/y < 2.49 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (03.06.21)Dana Group
 
03.06.21.01 Pizgrischite! (Cu,Fe)Cu14PbBi17S35 C 2/m 2/m
 
03.06.21.02 Rouxelite! Cu2HgPb22Sb28S64(O,S)2 C 2/m 2/m
Help on  Strunz Class: Strunz Class: 02.JA.10d 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.J - Sulfosalts of PbS Archetype
  02.JA -Galena derivatives with little or no Pb
 
02.JA.10d Pizgrischite! (Cu,Fe)Cu14PbBi17S35 C 2/m 2/m
 

Other Pizgrischite Information

Help on References: References: NAME( CanMin, v45:1229) PHYS. PROP.(CanMin, v45:1229) OPTIC PROP.(CanMin, v45:1229)
Help on See Also: See Also: Links to other databases for Pizgrischite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Pizgrischite

(Cu,Fe)Cu14PbBi17S35
Dana No: 03.06.21.01 Strunz No: 02.JA.10d
Locality:

 

Notes:

 

 
   
 


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