Bromargyrite Mineral Data

Bromargyrite Mineral Data
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General Bromargyrite Information

Help on Chemical Formula: Chemical Formula: AgBr
Help on Composition: Composition: Molecular Weight = 187.77 gm
   Silver   57.45 %  Ag   61.71 % Ag2O
   Bromine  42.55 %  Br   42.55 % Br
              -   %  Br   -4.26 % -O=Br2   
           ______        ______ 
           100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: AgBr
Help on Environment: Environment: Oxidized portions of silver deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1841
Help on Locality: Locality: Mexico, Chile. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its composition of bromine (Greek, bromos - "stench") and silver (Latin, argentum).
Help on Name Pronunciation: Name Pronunciation: Bromargyrite + Pronunciation Say BROMARGYRITE
Help on Synonym: Synonym: Bromyrite
  Embolite-Cl
  ICSD 65061
  PDF 6-438
 

Bromargyrite Image

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Bromargyrite

Comments: Butterscotch colored bromargyrite cube.
Location: Broken Hill, New South Wales, Australia. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Bromargyrite Crystallography
Help on Cell Dimensions: Cell Dimensions: a = 5.7745, Z = 4; V = 192.55 Den(Calc)= 6.48
Help on Crystal System: Crystal System: Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F m3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.886(1), 2.041(0.55), 1.667(0.16),
Click Here for Large Bromargyrite Structure Window Crystal Structure:

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Wyckoff R W G , Crystal Structures , 1 (1963) p.85-237, Second edition. Interscience Publishers, New York, New York, rocksalt structure

 

Physical Properties of Bromargyrite

Help on Cleavage: Cleavage: None
Help on Color: Color: Greenish brown, Gray green, Grayish yellow, Yellow, Olive green.
Help on Density: Density: 5.8 - 6, Average = 5.9
Help on Diaphaneity: Diaphaneity: Transparent to translucent
Help on Fracture: Fracture: Conchoidal - Uneven - Uneven fracture producing small, conchoidal fragments.
Help on Hardness: Hardness: 1.5-2 - Talc-Gypsum
Help on Luster: Luster: Adamantine - Greasy
Help on Streak: Streak: gray
 

Optical Properties of Bromargyrite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.081 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.016 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1929,KPDmeas= 0.2119,KC= 0.196
Ncalc = 2.14 - 2.27
Help on Optical Data: Optical Data: Isotropic, n=2.25.
 

Calculated Properties of Bromargyrite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.66 gm/cc
note: Specific Gravity of Bromargyrite =6.48 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0
Boson Index = 1
Help on Photoelectric: Photoelectric: PEBromargyrite = 188.51 barns/electron
U=PEBromargyrite x rElectron Density=1,066.92 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Bromargyrite is Not Radioactive
 

Bromargyrite Classification
Help on Dana Class: Dana Class: 09.01.04.02 (09)Anhydrous and Hydrated Halides
  (09.01)where A X
  (09.01.04)Embolite Series
 
09.01.04.00 Embolite* Ag(Br,Cl) F m3m 4/m 3 2/m
 
09.01.04.01 Chlorargyrite AgCl F m3m 4/m 3 2/m
 
09.01.04.02 Bromargyrite AgBr F m3m 4/m 3 2/m
Help on Strunz Class: Strunz Class: 03.AA.15 03 - HALIDES
  03.A - Simple Halides, Without H2O
  03.AA -M:X = 1:1, 2:3, 3:5, etc.
 
03.AA.15 Bromargyrite AgBr F m3m 4/m 3 2/m
 
03.AA.15 Chlorargyrite AgCl F m3m 4/m 3 2/m
 
03.AA.15 Embolite* Ag(Br,Cl) F m3m 4/m 3 2/m
 

Other Bromargyrite Information
Help on References: References: NAME( Emsley91) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Bromargyrite :
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
15 - WWW-MINCRYST

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Bromargyrite

AgBr
Dana No: 09.01.04.02 Strunz No: 03.AA.15
Locality:

 

Notes: