Djurleite Mineral Data + Say DJURLEITE


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General Djurleite Information

Help on Chemical  Formula: Chemical Formula: Cu31S16
Help on Composition: Composition: Molecular Weight = 2,482.98 gm
   Copper  79.34 %  Cu
   Sulfur  20.66 %  S
          ______ 
          100.00 % 
Help on Empirical Formula: Empirical Formula: Cu31S16
Help on Environment: Environment: Found with other secondary copper sulfides in enriched zones.
Help on IMA Status: IMA Status: Approved IMA 1962
Help on Locality: Locality: In the USA, in many of the large porphyry copper deposits of the Western Cordillera including Butte, Silver Bow Co., Montana; Bisbee, Cochise Co. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For S. Djurle, who first synthesized the compound later found in nature.
Help on Synonym: Synonym: ICSD 10100
  PDF 34-660
 

Djurleite Image

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Djurleite

Comments: Dark, metallic djurleite with transparent quartz and white calcite.
Location: Dzhezkazgan. Kazakhstan. Scale: 4.5 x 4.5 cm.
© Fabre Minerals

Djurleite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.7079:1:0.8615
Help on Cell Dimensions: Cell Dimensions: a = 26.9, b = 15.75, c = 13.57, Z = 8; beta = 90.13° V = 5,749.25 Den(Calc)= 5.74
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/n
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 1.871(1), 1.964(0.9), 2.387(0.9),
Click Here for Large Djurleite Structure Window Crystal Structure:

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drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate

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Help on Above


Evans H T , Zeitschrift fur Kristallographie , 150 (1979) p.299-320, The crystal structures of low chalocite and djurleite, Locality: Ozark Lead Co. mine at Sweetwater, Missouri, USA

 

Physical Properties of Djurleite

Help on Cleavage: Cleavage: None
Help on Color: Color: Lead gray, Blue black, Black, Black gray.
Help on Density: Density: 5.63
Help on Diaphaniety: Diaphaniety: Opaque
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 2.5-3 - Finger Nail-Calcite
Help on Luster: Luster: Metallic
Help on Streak: Streak: metallic
 

Optical Properties of Djurleite

Help on RL Anisotrophism: RL Anisotrophism: Weak.
Help on RL Color: RL Color: Gray.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Djurleite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   34.60   35.80 
   
 420 nm   34.20   35.20 
 440 nm   33.80   34.60 
 460 nm   33.30   34.00 
 480 nm   32.60   33.20 
 500 nm   31.80   32.30 
 520 nm   30.60   31.20 
 540 nm   29.60   30.20 
 560 nm   28.60   29.30 
 580 nm   27.80   28.60 
 600 nm   27.00   28.10 
 620 nm   26.40   27.60 
 640 nm   25.70   27.10 
 660 nm   25.00   26.70 
 680 nm   24.40   26.40 
 700 nm   23.60   26.10 
Calculated Relative Intensity Colors of Djurleite in Air
Relative
Intensity
   0%   40%   80% 100% 120% 160% 200% 240% 280% 320% 330%
R1                      
R2                      
 

Calculated Properties of Djurleite

Help on Electron Density: Electron Density:

relectron=5.34 gm/cc
note: rDjurleite =5.74 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00154
Boson Index = 0.99846
Help on Photoelectric: Photoelectric:

PEDjurleite = 36.99 barns/electron
U=PEDjurleite x relectron= 197.51 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Djurleite is Not Radioactive

 

Djurleite Classification

Help on  Dana Class: Dana Class: 2.4.7.2 (2)Sulfides - Including Selenides and Tellurides
  (2.4)where Am Bn Xp, with (m+n):p=2:1
  (2.4.7)Chalcocite Group ([Cu]2-x S] formulae)
 
2.4.7.1 Chalcocite Cu2S P 21/c 2/m
 
2.4.7.2 Djurleite Cu31S16 P 21/n 2/m
 
2.4.7.3 Digenite Cu9S5 R 3m 3 2/m
 
2.4.7.4 Roxbyite Cu1.78S C 2/m 2/m
 
2.4.7.5 Anilite Cu7S4 P nma 2/m 2/m 2/m
 
2.4.7.6 Geerite Cu8S5 R 3m, R 3m, or R 32 Trig
 
2.4.7.7 Spionkopite Cu1.4S P 3m1 ? 3m
Help on  Strunz Class: Strunz Class: II/B.01-20 II - Sulfides and sulphosalts
  II/B - Sulfides with metal: sulfur, selenium and tellurium > 1:1, Coppersulfides Chalcocite group
  II/B.01 - Chalcocite - Yarrowite series
 
II/B.01-10 Chalcocite Cu2S P 21/c 2/m
 
II/B.01-20 Djurleite Cu31S16 P 21/n 2/m
 
II/B.01-30 Digenite Cu9S5 R 3m 3 2/m
 
II/B.01-40 Roxbyite Cu1.78S C 2/m 2/m
 
II/B.01-50 Anilite Cu7S4 P nma 2/m 2/m 2/m
 
II/B.01-60 Geerite Cu8S5 R 3m, R 3m, or R 32 Trig
 
II/B.01-70 Spionkopite Cu1.4S P 3m1 ? 3m
 
II/B.01-80 Yarrowite Cu9S8 P 3m1 ? 3m
 

Other Djurleite 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 Djurleite :
1 - Alkali-Nuts(English) 2 - Alkali-Nuts(Francais) 3 -Am. Min. Crystal Structure Database 4 -Athena 5 - Crocoite.com Mineral Locations 6 - EUROmin Project 7 - Franklin Minerals(Dunn) 8 -Google Images 9 -Google Scholar 10 -Handbook of Mineralogy (UofA) 11 -MinDAT 12 -MinMax(Deutsch) 13 -MinMax(English) 14 -Mineralienatlas (Deutsch) 15 - Minerals of Wisconsin 16 -QUT Mineral Atlas 17 - Scandinavian mineral gallery 18 - WWW-MINCRYST 19 -École des Mines de Paris

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

Djurleite

Cu31S16
Dana No: 2.4.7.2 Strunz No: II/B.01-20
Locality:

 

Notes:

 

 
   
 
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