Mineralogy Database

Weishanite Mineral Data

Search Webmineral :
  
Advertisment

General Weishanite Information

Help on Chemical  Formula: Chemical Formula: (Au,Ag)3Hg2
Help on Composition: Composition: Molecular Weight = 925.26 gm
   Silver    8.74 %  Ag
   Mercury  43.36 %  Hg
   Gold     47.90 %  Au
           ______ 
           100.00 % 
Help on Empirical Formula: Empirical Formula: Au2.25Ag0.75Hg2
Help on Environment: Environment: In the silicified zone of the silver-rich part of an Au-Ag deposit in biotite granulte.
Help on IMA Status: IMA Status: Approved IMA 1984
Help on Locality: Locality: Weishan, Poshan mining district,Tongbai County, Henan Province, China. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Weishanite + Pronunciation Say WEISHANITE
 

Weishanite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.64626
Help on Cell Dimensions: Cell Dimensions: a = 2.9265, c = 4.8178, Z = 0.25; V = 35.73 Den(Calc)= 10.75
Help on Crystal System: Crystal System: Hexagonal - Dihexagonal Dipyramidal H-M Symbol (6/m 2/m 2/m) Space Group: P 63/mmc
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.243(1), 0.9396(0.9), 1.3593(0.8),
 

Physical Properties of Weishanite

Help on Cleavage: Cleavage: None
Help on Color: Color: Light yellow.
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Malleable - Deforms rather than breaking apart with a hammer.
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luster: Luster: Metallic
Help on Streak: Streak: light yellow
 

Optical Properties of Weishanite

Help on RL Anisotrophism: RL Anisotrophism: Weak.
Help on RL Pleochroism: RL Pleochroism: Weak.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Weishanite in Air
λ R  ∑ R(λ) 
 480 nm   63.75   
 534 nm   76.30 
 589 nm   81.03 
 656 nm   68.60 
Calculated Relative Intensity Colors of Weishanite in Air
Relative
Intensity
   0%   20%   40%   60%   80% 100% 120% 140%
R                
 

Calculated Properties of Weishanite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=8.67 gm/cc
note: Specific Gravity of Weishanite =10.8 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.13
Boson Index = 0.87
Help on Photoelectric: Photoelectric: PEWeishanite =1,594.03 barns/electron
U=PEWeishanite x rElectron Density=13816.02 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Weishanite is Not Radioactive
 

Weishanite Classification

Help on  Dana Class: Dana Class: 01.01.08.06 (01)Native Elements
  (01.01)with metallic elements other than the platinum group
  (01.01.08)Silver Amalgam Alloys
 
01.01.08.00 Amalgam* Ag2Hg3 Unk Cubic
 
01.01.08.01 Moschellandsbergite Ag2Hg3 I m3m 4/m 3 2/m
 
01.01.08.02 Schachnerite Ag1.1Hg0.9 P 63/mmc 6/m 2/m 2/m
 
01.01.08.03 Paraschachnerite Ag3Hg2 C mcm 2/m 2/m 2/m
 
01.01.08.04 Luanheite Ag3Hg P 63/mmc 6/m 2/m 2/m
 
01.01.08.05 Eugenite Ag9Hg2 I 43m 4 3m
 
01.01.08.06 Weishanite (Au,Ag)3Hg2 P 63/mmc 6/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 01.AD.20a 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.20a Weishanite (Au,Ag)3Hg2 P 63/mmc 6/m 2/m 2/m
 

Other Weishanite Information

Help on References: References: NAME( AntBidBlaNic1) PHYS. PROP.(Am.Min.,Vol.73,p196,1988) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Weishanite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

Search for Weishanite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Weishanite :

Ask about Weishanite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espaņol

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

Weishanite

(Au,Ag)3Hg2
Dana No: 01.01.08.06 Strunz No: 01.AD.20a
Locality:

 

Notes:

 

 
   
 


Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.