Potarite Mineral Data

Potarite Mineral Data
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General Potarite Information

Help on Chemical Formula: Chemical Formula: PdHg
Help on Composition: Composition: Molecular Weight = 307.01 gm
   Mercury    65.34 %  Hg
   Palladium  34.66 %  Pd
             ______ 
             100.00 % 
Help on Empirical Formula: Empirical Formula: PdHg
Help on Environment: Environment: Residual mineral found in diamond washings.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1926
Help on Locality: Locality: Potaro River area, Guyana. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Potarite Say POTARITE
 

Potarite Image

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Potarite

Comments: BSE probe image showing a composite grain of potarite (PdHg), and a PtNiFeCu alloy in an intertitial site and filling a fracture in a chromite grain (Chr).
Location: Southern Quebec Ophiolite Belt, Thetford Mines ophiolitic complex, Canada. Scale: See Image.
© National Resouces of Canada
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Potarite

Comments: Potarite grains in a geletin capsule.
Location: Potaro River, Kangaruma District, Guyana. Scale: Sample Size 4.1 x 2.2 x 1.9 cm.
© Rob Lavinsky

Potarite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:1.22715
Help on Cell Dimensions: Cell Dimensions: a = 3.02, c = 3.706, Z = 1; V = 33.80 Den(Calc)= 15.08
Help on Crystal System: Crystal System: Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: P 4/mmm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.34(1), 1.274(0.8), 1.402(0.55),
Click Here for Large Potarite Structure Window Crystal Structure:

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Bayliss P , The Canadian Mineralogist , 28 (1990) p.751-755, Revised unit cell dimensions, space group,, and chemical formua of some metallic minerals, Note: cell edges taken from Handbook of Mineralogy

 

Physical Properties of Potarite

Help on Cleavage: Cleavage: None
Help on Color: Color: Silver white.
Help on Density: Density: 14.88
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Nuggets - Irregular lumps produced by stream transport of malleable metals.
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luster: Luster: Metallic
Help on Streak: Streak: metallic
 

Optical Properties of Potarite

Help on RL Anisotrophism: RL Anisotrophism: Noted on inclusions, brown with an orange tinge..
Help on RL Color: RL Color: Cream to creamish white.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Potarite in Air
λ R  ∑ R(λ) 
 440 nm   57.50   
 460 nm   58.10 
 480 nm   58.40 
 500 nm   59.00 
 520 nm   60.00 
 540 nm   61.00 
 560 nm   61.70 
 580 nm   62.40 
 600 nm   63.00 
 620 nm   63.80 
 640 nm   64.50 
 660 nm   65.40 
 680 nm   66.00 
 700 nm   66.80 
Calculated Relative Intensity Colors of Potarite in Air
Relative
Intensity		    0%   20%   40%   60%   80% 100% 120% 140% 160%
R                  
 

Calculated Properties of Potarite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=12.4 gm/cc
note: Specific Gravity of Potarite =15.1 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.27
Boson Index = 0.73
Help on Photoelectric: Photoelectric: PEPotarite =1,215.00 barns/electron
U=PEPotarite x rElectron Density=15039.17 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Potarite is Not Radioactive
 

Potarite Classification
Help on Dana Class: Dana Class: 01.02.04.04 (01)Native Elements
  (01.02)with platinum group metals and alloys
  (01.02.04)Tetraferroplatinum group (Space Group P4/mmm)
 
01.02.04.01 Tetraferroplatinum PtFe P 4/mmm 4/m 2/m 2/m
 
01.02.04.02 Tulameenite Pt2FeCu P 4/mm 4/m 2/m 2/m
 
01.02.04.03 Ferronickelplatinum Pt2FeNi P 4/mmm 4/m 2/m 2/m
 
01.02.04.04 Potarite PdHg P 4/mmm 4/m 2/m 2/m
Help on Strunz Class: Strunz Class: 01.AD.25 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
  01.A - Metals and Intermetallic Alloys
  01.AD -Mercury-amalgam family
 
01.AD.25 Potarite PdHg P 4/mmm 4/m 2/m 2/m
 

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

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Potarite

PdHg
Dana No: 01.02.04.04 Strunz No: 01.AD.25
Locality:

 

Notes: