Mineralogy Database

Naldretteite Mineral Data

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General Naldretteite Information

Help on Chemical  Formula: Chemical Formula: Pd2Sb
Help on Composition: Composition: Molecular Weight = 333.37 gm
   Iron        0.12 %  Fe
   Antimony   35.86 %  Sb
   Arsenic     0.31 %  As
   Palladium  63.69 %  Pd
   Sulfur      0.02 %  S
             100.00 % 
Help on Empirical Formula: Empirical Formula: Pd1.99Fe2+0.007Sb0.98As0.01S0.002
Help on Environment: Environment: In the contact zone that separates massive and disseminated sulfide mineralization.
Help on IMA Status: IMA Status: Approved IMA 2004 (Dana # Added)
Help on Locality: Locality: Discovered in drill core from the Mesamax Northwest deposit, Cape Smith fold belt, Ungava region, Canada. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Professor Anthony J. Naldrett (b. 1933), University of Toronto and past President of both the Mineralogical Association of Canada and the International Mineralogical Assoc iation.
Help on Synonym: Synonym: IMA2004-007

Naldretteite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.2224:1:0.3962
Help on Cell Dimensions: Cell Dimensions: a = 3.906, b = 17.5551, c = 6.957, Z = 8; V = 477.04 Den(Calc)= 9.28
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: C mc21
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.2454(1)(132 ), 0.8584(0.56)(1,17,4 ), 2.0567(0.52)(043 ),0.8409(0.51)(118 ), 1.2122(0.5)(204 ), 1.2842(0.42)(115 ), 2.0009(0.4)(152 ), 1.3674(0.35)(193 ), 2.3029(0.35)(151 ),

Physical Properties of Naldretteite

Help on Cleavage: Cleavage: None
Help on Color: Color: Creamy white.
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Malleable - Deforms rather than breaking apart with a hammer.
Help on Habit: Habit: Anhedral Grains - Granular minerals without the expression of crystal shapes
Help on Hardness: Hardness: 4-5 - Fluorite-Apatite
Help on Luster: Luster: Metallic

Optical Properties of Naldretteite

Help on RL Anisotrophism: RL Anisotrophism: Distinct in shades of deep bright blue, lemon-buff, and mauve to pale pink.
Help on RL Bireflectance: RL Bireflectance: Weak.
Help on RL Color: RL Color: Bright creamy white.
Help on RL Pleochroism: RL Pleochroism: None.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Naldretteite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 470 nm   49.00   50.90 
 546 nm   53.20   55.10 
 589 nm   55.40   57.50 
 650 nm   58.50   60.10 
Standardized Intensity (100%) Reflection Spectra of Naldretteite in Oil
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 470 nm   35.90   37.60 
 546 nm   40.30   42.10 
 589 nm   42.50   44.30 
 650 nm   45.40   47.20 
Calculated Relative Intensity Colors of Naldretteite in Air
   0%   20%   40%   60%   80% 100% 120% 140% 160% 180%
Calculated Relative Intensity Colors of Naldretteite in Oil
   0%   30%   60%   90% 100% 120% 150% 180% 210% 240% 250%

Calculated Properties of Naldretteite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=7.94 gm/cc
note: Specific Gravity of Naldretteite =9.28 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.14
Boson Index = 0.86
Help on Photoelectric: Photoelectric: PENaldretteite = 279.42 barns/electron
U=PENaldretteite x rElectron Density=2,217.20 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Naldretteite is Not Radioactive

Naldretteite Classification

Help on  Dana Class: Dana Class: (02)Sulfides - Including Selenides and Tellurides
  (02.04)where Am Bn Xp, with (m+n):p=2:1
  (02.04.22)Dana Group Naldretteite! Pd2Sb C mc21 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 02.AC.25d 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.A - Simple Sulfides, Selenides, etc
  02.AC -Alloys of metalloids with PGE
02.AC.25d Naldretteite! Pd2Sb C mc21 2/m 2/m 2/m

Other Naldretteite Information

Help on References: References: NAME( AmMin, v90, p1146) PHYS. PROP.(AmMin, v90, p1146) OPTIC PROP.(AmMin, v90, p1146)
Help on See Also: See Also: Links to other databases for Naldretteite :
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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Dana No: Strunz No: 02.AC.25d





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