Meneghinite Mineral Data

Meneghinite Mineral Data
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General Meneghinite Information

Help on Chemical Formula: Chemical Formula: Pb13CuSb7S24
Help on Composition: Composition: Molecular Weight = 4,378.98 gm
   Copper     1.45 %  Cu
   Antimony  19.46 %  Sb
   Lead      61.51 %  Pb
   Sulfur    17.57 %  S
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: Pb13CuSb7S24
Help on Environment: Environment: In hydrothermal veins and contact metamorphic deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1852
Help on Locality: Locality: Marble Lake, Barrie Township, Frontenac Co. Ontario, Canada. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Giuseppi Meneghini (1811-1889) of Pisa, Italy who first observed the mineral.
Help on Name Pronunciation: Name Pronunciation: Meneghinite + Pronunciation Say MENEGHINITE
Help on Synonym: Synonym: ICSD 31126
  PDF 43-1476
 

Meneghinite Image

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Meneghinite

Comments: Black, acicular crystals of meneghinite on matrix.
Location: Bottino Mine, Tuscany, Italy. Scale: 1x1 cm.
© Dave Barthelmy

Meneghinite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.472:1:0.1717
Help on Cell Dimensions: Cell Dimensions: a = 11.343, b = 24.028, c = 4.126, Z = 1; V = 1,124.54 Den(Calc)= 6.47
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pbnm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.27(1), 2.922(0.9), 3.74(0.8),
Help on Forms: Forms:

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

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Euler R , Hellner E , Zeitschrift fur Kristallographie , 113 (1960) p.345-372, Uber komplex zusammengesetzte sulfidische erze VI., Zur kristallstruktur des meneghinits, CuPb13Sb7S24

 

Physical Properties of Meneghinite

Help on Cleavage: Cleavage: {010} Perfect
Help on Color: Color: Blackish gray, Lead gray.
Help on Density: Density: 6.34 - 6.43, Average = 6.38
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Massive - Uniformly indistinguishable crystals forming large masses.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
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: metallic
 

Optical Properties of Meneghinite

Help on Optical Data: Optical Data: NCalc= 1.02 - from Gladstone-Dale relationship (KC = 0.0038) where Ncalc=Dcalc*KC+1
NCalc= 1.02 - from Gladstone-Dale relationship (KC = 0.0038) where Ncalc=Dmeas*KC+1
Help on RL Anisotrophism: RL Anisotrophism: Weak.
Help on RL Color: RL Color: White.
Help on RL Pleochroism: RL Pleochroism: Strong.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Meneghinite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   38.50   44.50 
   
 420 nm   39.20   45.20 
 440 nm   39.90   45.90 
 460 nm   40.20   46.40 
 480 nm   40.40   46.60 
 500 nm   40.40   46.50 
 520 nm   40.30   46.30 
 540 nm   40.00   46.00 
 560 nm   39.80   45.60 
 580 nm   39.50   45.10 
 600 nm   39.20   44.50 
 620 nm   38.80   43.80 
 640 nm   38.50   43.00 
 660 nm   38.20   42.10 
 680 nm   37.80   41.20 
 700 nm   37.40   40.20 
Calculated Relative Intensity Colors of Meneghinite in Air
Relative
Intensity		    0%   30%   60%   90% 100% 120% 150% 180% 210% 230%
R1                    
R2                    
 

Calculated Properties of Meneghinite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.43 gm/cc
note: Specific Gravity of Meneghinite =6.47 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.13
Boson Index = 0.87
Help on Photoelectric: Photoelectric: PEMeneghinite =1,196.13 barns/electron
U=PEMeneghinite x rElectron Density=6,489.52 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Meneghinite is Not Radioactive
 

Meneghinite Classification
Help on Dana Class: Dana Class: 03.03.05.01 (03)Sulfides - Sulfosalts
  (03.03)where 3 < z/y < 4 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (03.03.05)Dana Group
 
03.03.05.01 Meneghinite Pb13CuSb7S24 Pbnm 2/m 2/m 2/m
Help on Strunz Class: Strunz Class: 02.HB.05b 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.H - Sulfosalts of SnS Archetype
  02.HB -With Cu, Ag, Hg, Fe, Sn and Pb
 
02.HB.05b Meneghinite Pb13CuSb7S24 Pbnm 2/m 2/m 2/m
 

Other Meneghinite 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 Meneghinite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - MinMax(Deutsch)
12 - MinMax(English)
13 - Mineralienatlas (Deutsch)
14 - QUT Mineral Atlas
15 - Ruff.Info
16 - WWW-MINCRYST

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Meneghinite

Pb13CuSb7S24
Dana No: 03.03.05.01 Strunz No: 02.HB.05b
Locality:

 

Notes: