General Bromargyrite Information Chemical Formula: |
AgBr |
Composition: |
Molecular Weight = 187.77 gm |
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Silver 57.45 % Ag 61.71 % Ag2O |
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Bromine 42.55 % Br 42.55 % Br |
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- % Br -4.26 % -O=Br2
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
AgBr |
Environment: |
Oxidized portions of silver deposits. |
IMA Status: |
Valid Species (Pre-IMA) 1841 |
Locality: |
Mexico, Chile. Link to MinDat.org Location Data. |
Name Origin: |
Named after its composition of bromine (Greek, bromos - "stench") and silver (Latin, argentum). |
Name Pronunciation: |
Bromargyrite + Pronunciation |
Synonym: |
Bromyrite |
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Embolite-Cl |
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ICSD 65061 |
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PDF 6-438 |
| | Bromargyrite Image
Images:
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Bromargyrite Crystallography Cell Dimensions: |
a = 5.7745, Z = 4; V = 192.55 Den(Calc)= 6.48 |
Crystal System: |
Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F m3m |
X Ray Diffraction: |
By Intensity(I/Io): 2.886(1), 2.041(0.55), 1.667(0.16), |
Crystal Structure:
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Mouse
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| Physical Properties of Bromargyrite Cleavage: |
None |
Color: |
Greenish brown, Gray green, Grayish yellow, Yellow, Olive green. |
Density: |
5.8 - 6, Average = 5.9 |
Diaphaneity: |
Transparent to translucent |
Fracture: |
Conchoidal - Uneven - Uneven fracture producing small, conchoidal fragments. |
Hardness: |
1.5-2 - Talc-Gypsum |
Luster: |
Adamantine - Greasy |
Streak: |
gray |
| Optical Properties of Bromargyrite 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 Optical Data: |
Isotropic, n=2.25. |
| Calculated Properties of Bromargyrite Electron Density: |
Bulk Density (Electron Density)=5.66 gm/cc |
note: Specific Gravity of Bromargyrite =6.48 gm/cc. Fermion Index: |
Fermion Index = 0 |
Boson Index = 1 Photoelectric: |
PEBromargyrite = 188.51 barns/electron |
U=PEBromargyrite x rElectron Density=1,066.92 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Bromargyrite is Not Radioactive | Bromargyrite Classification Dana Class: |
09.01.04.02 (09)Anhydrous and Hydrated Halides |
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(09.01)where A X |
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(09.01.04)Embolite Series |
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Strunz Class: |
03.AA.15 03 - HALIDES |
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03.A - Simple Halides, Without H2O |
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03.AA -M:X = 1:1, 2:3, 3:5, etc. |
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| Other Bromargyrite Information References: |
NAME( Emsley91) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32) |
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 Search for Bromargyrite using: Visit our Advertisers for Bromargyrite : A Bijoux Google Search for BromargyriteAdam's Minerals Google Search for Bromargyrite Cape Minerals Google Search for Bromargyrite Dakota Matrix Minerals Google Search for Bromargyrite Excalibur Mineral Corp. Google Search for Bromargyrite Exceptional Minerals Google Search for Bromargyrite John Betts Fine Minerals Search for Bromargyrite McDougall Minerals Google Search for Bromargyrite Mineral News Website Link Rock and Mineral Shows Google Search for Bromargyrite Weinrich Minerals, Inc. Google Search for Bromargyrite Ask about Bromargyrite here : Print or Cut-and-Paste your Bromargyrite Specimen Label here :
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