Mineralogy Database

Silver Mineral Data

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General Silver Information

Help on Chemical  Formula: Chemical Formula: Ag
Help on Composition: Composition: Molecular Weight = 107.87 gm
   Silver 100.00 %  Ag
          100.00 % 
Help on Empirical Formula: Empirical Formula: Ag
Help on Environment: Environment: In sulfide ore veins.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) Prehistoric
Help on Locality: Locality: Mexico and Norway have large deposits of silver. Known to ancient civilizations. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Anglo-Saxon, of unknown origin.
Help on Name Pronunciation: Name Pronunciation: Silver Say SILVER
Help on Synonym: Synonym: Cocinerite - Mixture with chalcocite
  Electrum - Au Alloy

Silver Image

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  Gold   Silver

Comments: Very well crystallized Electrum (Silver rich gold) on quartz. The analysis gave 31.47% silver.
Location: Verespatak (now Rosia Montana), Transylvania, Romania. Scale: 2.8 x 3.4 cm.
© Fabre Minerals

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Comments: Numerous fine, silver wires to 4 mm in diameter attached to a matrix of massive white calcite and minor sulfides.
Location: Himmelsfahrt mine, near Freiberg, Saxony, Germany. Scale: 4 x 4.5 x 6 cm.
© Dan Weinrich

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  Silver   Stephanite

Comments: Thick, ropy, native silver wires with blocky, well-crystallized stephanite on white and tan calcite matrix.
Location: Freiberg, Erzgebirge, Saxony, Alemania, Germay. Scale: Picture size 3 cm.
© Fabre Minerals

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  Mckinstryite   Silver

Comments: Black metallic massive mckinstryite with wire silver.
Location: Peregrina Mine, Guanajuato, Mexico. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Silver Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 4.0862, Z = 4; V = 68.23 Den(Calc)= 10.50
Help on Crystal System: Crystal System: Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F m3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.359(1), 2.044(0.4), 1.231(0.26),

Physical Properties of Silver

Help on Cleavage: Cleavage: None
Help on Color: Color: Silver white, Gray white, Gray.
Help on Density: Density: 10 - 11, Average = 10.5
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Hackly - Jagged, torn surfaces, (e.g. fractured metals).
Help on Habit: Habit: Arborescent - "Tree like" growths of branched systems (e.g. silver).
Help on Habit: Habit: Dendritic - Branching "tree-like" growths of great complexity (e.g. pyrolusite).
Help on Habit: Habit: Massive - Uniformly indistinguishable crystals forming large masses.
Help on Hardness: Hardness: 2.5-3 - Finger Nail-Calcite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Metallic
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: silver white

Optical Properties of Silver

Help on RL Color: RL Color: Brilliant silver white.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Silver in Air
λ R  ∑ R(λ) 
 400 nm   69.80   
 420 nm   71.00 
 440 nm   73.20 
 460 nm   75.00 
 480 nm   76.80 
 500 nm   78.20 
 520 nm   79.50 
 540 nm   80.80 
 560 nm   81.70 
 580 nm   82.50 
 600 nm   83.20 
 620 nm   84.00 
 640 nm   84.60 
 660 nm   85.20 
 680 nm   86.00 
 700 nm   86.50 
Calculated Relative Intensity Colors of Silver in Air
   0%   20%   40%   60%   80% 100% 120%

Calculated Properties of Silver

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=9.15 gm/cc
note: Specific Gravity of Silver =10.5 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0
Boson Index = 1
Help on Photoelectric: Photoelectric: PESilver = 261.51 barns/electron
U=PESilver x rElectron Density=2,392.85 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Silver is Not Radioactive

Silver Classification

Help on  Dana Class: Dana Class: (01)Native Elements
  (01.01)with metallic elements other than the platinum group
  (01.01.01)Gold group Gold Au F m3m 4/m 3 2/m Silver Ag F m3m 4/m 3 2/m Copper Cu F m3m 4/m 3 2/m Lead Pb F m3m 4/m 3 2/m Aluminum Al F m3m,P m3m 4/m 3 2/m
Help on  Strunz Class: Strunz Class: 01.AA.05 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
  01.A - Metals and Intermetallic Alloys
  01.AA -Copper-cupalite family
01.AA.05 Aluminum Al F m3m,P m3m 4/m 3 2/m
01.AA.05 Copper Cu F m3m 4/m 3 2/m
01.AA.05 Lead Pb F m3m 4/m 3 2/m
01.AA.05 Gold Au F m3m 4/m 3 2/m
01.AA.05 Nickel Ni F m3m 4/m 3 2/m
01.AA.05 Silver Ag F m3m 4/m 3 2/m

Other Silver Information

Help on References: References: NAME( Sinkankas66) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Silver :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - Franklin Minerals(Dunn)
5 - Franklin Minerals(Palache)
6 - GeoScienceWorld
7 - Glendale Community College
8 - Google Images
9 - Google Scholar
10 - Handbook of Mineralogy (MinSocAm)
11 - Handbook of Mineralogy (UofA)
12 - HyperPhysics
13 - MinDAT
14 - Mineral and Gemstone Kingdom
15 - Mineralienatlas (Deutsch)
16 - Online Mineral Museum
17 - Philatelic Mineralogy
18 - QUT Mineral Atlas
19 - Ruff.Info
20 - Scandinavian mineral gallery
21 - University of Texas at Austin
23 - YupRocks

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Dana No: Strunz No: 01.AA.05





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