Arsenic Mineral Data + Say ARSENIC


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General Arsenic Information
Help on Chemical Formula: Chemical Formula: As
Help on Composition: Composition: Molecular Weight = 74.92 gm
   Arsenic 100.00 %  As
           ______ 
           100.00 % 
Help on Empirical Formula: Empirical Formula: As
Help on Environment: Environment: In ore veins in crystalline rocks.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) Prehistoric
Help on Locality: Locality: Saxony, Great Britain. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek, Arsenikon, a name originally applied to the mineral orpiment.
Help on Synonym: Synonym: ICSD 16516
  PDF 5-632
 

Arsenic Image

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Arsenic

Comments: Bright, metallic, gray, crystalline aggregate or arsenic.
Location: Niederschlema, Saxony, Germany. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals
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Arsenic

Comments: Botryoidal-concentric aggregate of arsenic with white calcite crystals.
Location: Schneeberg, Erzgebirge, Sachsen, Germany. Scale: 7 x 4 cm.
© Thomas Witzke / Abraxas-Verlag
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Arsenic   Claudetite

Comments: Colorless prismatic crystal of claudetite on native arsenic.
Location: J?chymov (St Joachimsthal), Krusn? Hory (Erzgebirge), Z?padocesk? Kraj, Bohemia, Czech Republic. Scale: Picture size 2 mm.
© Thomas Witzke / Abraxas-Verlag

Arsenic Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:2.80626
Help on Cell Dimensions: Cell Dimensions: a = 3.768, c = 10.574, Z = 6; V = 130.01 Den(Calc)= 5.74
Help on Crystal System: Crystal System: Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.771(1), 1.879(0.26), 3.52(0.26),
Help on Forms: Forms:

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Forms: [ 1 0 4] [ 0 2 1] [ 0 1 2] [ 0 0 1]

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Wyckoff R W G , Crystal Structures , 1 (1963) p.7-83, Second edition. Interscience Publishers, New York, New York

View Additional jPOWD Structure files for Arsenic
[1] [2] [3]
 

Physical Properties of Arsenic

Help on Cleavage: Cleavage: [0001] Perfect
Help on Color: Color: Lead gray, Gray, White.
Help on Density: Density: 5.7
Help on Diaphaniety: Diaphaniety: Opaque
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Lamellar - Thin laminae producing a lamellar structure.
Help on Habit: Habit: Nodular - Tuberose forms having irregular protuberances over the surface.
Help on Habit: Habit: Reniform - "Kidney like" in shape (e.g.. hematite).
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luminescence: Luminescence: None.
Help on Luster: Luster: Metallic
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: black
 

Optical Properties of Arsenic

Help on RL Anisotrophism: RL Anisotrophism: Distinct, yellow brown and light gray to yellowish gray.
Help on RL Pleochroism: RL Pleochroism: Feeble.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Arsenic in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   53.90   58.40 
   
 420 nm   52.20   57.00 
 440 nm   50.50   55.60 
 460 nm   49.60   54.70 
 480 nm   48.90   54.20 
 500 nm   48.30   53.80 
 520 nm   47.80   53.40 
 540 nm   47.40   53.20 
 560 nm   47.20   52.90 
 580 nm   47.00   52.80 
 600 nm   46.90   52.70 
 620 nm   46.60   52.60 
 640 nm   46.40   52.60 
 660 nm   46.30   52.60 
 680 nm   46.40   52.70 
 700 nm   47.00   52.80 
Calculated Relative Intensity Colors of Arsenic in Air
Relative
Intensity		    0%   20%   40%   60%   80% 100% 120% 140% 160% 180% 190%
R1                      
R2                      
 

Calculated Properties of Arsenic

Help on Electron Density: Electron Density:

relectron=5.06 gm/cc
note: rArsenic =5.74 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0
Boson Index = 1
Help on Photoelectric: Photoelectric:

PEArsenic = 73.21 barns/electron
U=PEArsenic x relectron= 370.20 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Arsenic is Not Radioactive
 

Arsenic Classification
Help on Dana Class: Dana Class: 1.3.1.1 (1)Native Elements
  (1.3)with semi-metallic and non-metallic elements
  (1.3.1)Arsenic group
 
1.3.1.1 Arsenic As R 3m 3 2/m
 
1.3.1.2 Antimony Sb R 3m 3 2/m
 
1.3.1.3 Stibarsen SbAs R 3m 3 2/m
 
1.3.1.4 Bismuth Bi R 3m 3 2/m
 
1.3.1.5 Stistaite SnSb R 3m 3 2/m
Help on Strunz Class: Strunz Class: I/B.01-10 I - Elements
  I/B - Semimetals and nonmetals
  I/B.01 - Arsenic-Bismuth series
 
I/B.01-10 Arsenic As R 3m 3 2/m
 
I/B.01-20 Stibarsen SbAs R 3m 3 2/m
 
I/B.01-30 Antimony Sb R 3m 3 2/m
 
I/B.01-40 Bismuth Bi R 3m 3 2/m
 
I/B.01-50 Arsenolamprite As Bmab 2/m 2/m 2/m
 
I/B.01-55 Pararsenolamprite! As Pmn2 or P 21nm Ortho
 
I/B.01-60 Paradocrasite Sb2(Sb,As)2 C 2 2
 

Other Arsenic 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 Arsenic :
1 -Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 - Applied Mineralogy 4 - Applied Mineralogy 5 -Athena 6 - Crocoite.com Mineral Locations 7 - EUROmin Project 8 - Franklin Minerals(Dunn) 9 -Google Images 10 -Google Scholar 11 -Handbook of Mineralogy (UofA) 12 -MinDAT 13 -MinMax(Deutsch) 14 -MinMax(English) 15 - Mineral and Gemstone Kingdom 16 -Mineralienatlas (Deutsch) 17 -QUT Mineral Atlas 18 - Scandinavian mineral gallery 19 - University of Manchester - Mineral Structure 20 - WWW-MINCRYST 21 -École des Mines de Paris

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Arsenic

As
Dana No: 1.3.1.1 Strunz No: I/B.01-10
Locality:

 

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