Bohdanowiczite Mineral Data (original) (raw)

General Bohdanowiczite Information

Help on Chemical Formula: Chemical Formula:

AgBiSe2

Help on Composition: Composition:

Molecular Weight = 474.77 gm

Silver 22.72 % Ag

Bismuth 44.02 % Bi

Selenium 33.26 % Se

______

100.00 %

Help on Empirical Formula: Empirical Formula:

AgBiSe2

Help on Environment: Environment:

In fluorite and quartz in a strongly brecciated zone formed in crystalline limestone adjacent to magnetite-bearing skarns.

Help on IMA Status: IMA Status:

Approved IMA 1967

Help on Locality: Locality:

Kletna deposit, Sudetes Mountains, Poland Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for Karol Bohdanovicz (1864-1947), Polish economic geologist.

Help on Name Pronunciation: Name Pronunciation:

Bohdanowiczite + Pronunciation Say BOHDANOWICZITE

Help on Synonym: Synonym:

ICSD 26519

PDF 29-1441

Bohdanowiczite Image

Click Here for Larger Bohdanowiczite Image in a New Browser Window Images:

Click Here for Larger Bohdanowiczite Image Bohdanowiczite Comments: PPL polished section with Se-rich digenite (Se-dig) exsolved from massive bornite (Bn). Note the disseminated grains of bohdanowiczite (Bo) and naumannite surrounding the exsolved digenite. Location: Kidd Creek Volcanogenic Massive Sulfide deposit, Western Abitibi Subprovince, Timmins, Ontario, Canada.Scale: Picture Size. © National Resouces of Canada

Bohdanowiczite Crystallography

Help on Axial Ratios: Axial Ratios:

a:c = 1:4.67311

Help on Cell Dimensions: Cell Dimensions:

a = 4.2049, c = 19.65, Z = 3; V = 300.89 Den(Calc)= 7.86

Help on Crystal System: Crystal System:

Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: P 3m1

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 2.926(1), 2.036(0.8), 2.101(0.8),

Click Here for Large Bohdanowiczite Structure Window Crystal Structure:

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drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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Help on Above

| | Geller S , Wernick J H , Acta Crystallographica , 12 (1959) p.46-54, Ternary semiconducting compounds with sodium chloride-like structure: AgSbSe2,, AgSbTe2, AgBiS2, AgBiSe2, Locality: synthetic | | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

Physical Properties of Bohdanowiczite

Help on Color: Color:

Lead gray.

Help on Density: Density:

7.87

Help on Diaphaneity: Diaphaneity:

Opaque

Help on Habit: Habit:

Anhedral Grains - Granular minerals without the expression of crystal shapes

Help on Hardness: Hardness:

3 - Calcite

Help on Luster: Luster:

Metallic

Optical Properties of Bohdanowiczite

Help on RL Anisotrophism: RL Anisotrophism:

Noticeable, distinctly stronger in oil, in yellowish gray tones.

Help on RL Color: RL Color:

Pale creamy yellow to pink.

Help on Reflectivity Reflectivity

Standardized Intensity (100%) Reflection Spectra of Bohdanowiczite in Air

λ R1 R 2 ∑ R1(λ) ∑ R2(λ)
470 nm 51.20 52.90
546 nm 49.80 51.50
589 nm 50.10 51.50
650 nm 50.10 51.60

Calculated Relative Intensity Colors of Bohdanowiczite in Air

RelativeIntensity 0% 20% 40% 60% 80% 100% 120% 140% 160% 180%
R1
R2

Calculated Properties of Bohdanowiczite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=6.56 gm/cc
note: Specific Gravity of Bohdanowiczite =7.86 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Help on Photoelectric: Photoelectric:

PEBohdanowiczite = 939.32 barns/electron
U=PEBohdanowiczite x rElectron Density=6,158.14 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Bohdanowiczite is Not Radioactive

Bohdanowiczite Classification

Help on Dana Class: Dana Class:

03.07.01.02 (03)Sulfides - Sulfosalts

(03.07)where z/y = 2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals

(03.07.01)Matildite Group

03.07.01.01 Matildite AgBiS2 P 3m1 3 2/m

03.07.01.02 Bohdanowiczite AgBiSe2 P 3m1 3 2/m

03.07.01.03 Volynskite AgBiTe2 P 3m1 3 2/m

03.07.01.04 Zlatogorite! CuNiSb2 P 3m1 3 2/m

Help on Strunz Class: Strunz Class:

02.JA.20 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.J - Sulfosalts of PbS Archetype

02.JA -Galena derivatives with little or no Pb

02.JA.20 Bohdanowiczite AgBiSe2 P 3m1 3 2/m

02.JA.20 Matildite AgBiS2 P 3m1 3 2/m

02.JA.20 Volynskite AgBiTe2 P 3m1 3 2/m

Other Bohdanowiczite Information

Help on References: References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

Help on See Also: See Also:

Links to other databases for Bohdanowiczite :
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

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

Bohdanowiczite

AgBiSe2
Dana No: 03.07.01.02 Strunz No: 02.JA.20
Locality:

Notes: