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Heyrovskyite Mineral Data
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General Heyrovskyite Information
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 Chemical Formula: |
Pb10AgBi5S18 |
| Composition: |
Molecular Weight = 3,801.96 gm |
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Silver 2.84 % Ag |
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Bismuth 27.48 % Bi |
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Lead 54.50 % Pb |
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Sulfur 15.18 % S |
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______ |
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100.00 % |
| Empirical Formula: |
Pb10AgBi5S18 |
| Environment: |
In high temperature quartz veins and fumaroles. |
| IMA Status: |
Approved IMA 1971 |
| Locality: |
Hurky, Stredocesky kraj, Cechy (Bohemia), Czech Republic. Link to MinDat.org Location Data. |
| Name Origin: |
Named after the Czech chemist, J. Heyrovsky (1890-1967). |
| Name Pronunciation: |
Heyrovskyite + Pronunciation  |
| Synonym: |
ICSD 69962 |
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PDF 46-1370 |
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Heyrovskyite Image |
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Images:
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Heyrovskyite
Comments: Metallic, gray heyrovskyite in quartz.
Location: Hûrky u Cistá, Velká Chmelistná (Großmeleschen), Rakovnik, Stredoceský Kraj, Bohemia, Czech Republic.
Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag |
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Heyrovskyite Crystallography
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| Axial Ratios: |
a:b:c =0.3022:1:2.2415 |
| Cell Dimensions: |
a = 4.11, b = 13.6, c = 30.485, Z = 2; V = 1,703.99 Den(Calc)= 7.41 |
| Crystal System: |
Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: C mcm |
| X Ray Diffraction: |
By Intensity(I/Io): 3.41(1), 2.09(0.4), 2.85(0.3),2.94(0.3), 3.35(0.3), 3.54(0.3), 2.18(0.2), 3.75(0.2), |
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Physical Properties of Heyrovskyite
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| Cleavage: |
None |
| Color: |
Tin white. |
| Density: |
7.11 - 7.18, Average = 7.14 |
| Diaphaneity: |
Opaque |
| Fracture: |
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. |
| Habit: |
Acicular - Occurs as needle-like crystals. |
| Habit: |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
| Hardness: |
3.5-4 - Copper Penny-Fluorite |
| Luster: |
Metallic |
| Streak: |
grayish black |
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Optical Properties of Heyrovskyite
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| RL Anisotrophism: |
Moderate, gray to red brown. |
| RL Color: |
Creamy white. |
| RL Pleochroism: |
Not apparent. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Heyrovskyite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
50.60 |
46.30 |
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| 420 nm |
49.90 |
45.60 |
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| 440 nm |
49.70 |
44.90 |
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| 460 nm |
49.40 |
44.40 |
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| 480 nm |
49.20 |
43.90 |
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| 500 nm |
48.30 |
42.90 |
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| 520 nm |
47.60 |
42.30 |
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| 540 nm |
46.90 |
41.40 |
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| 546 nm |
46.60 |
41.30 |
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| 560 nm |
46.40 |
40.90 |
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| 580 nm |
46.20 |
40.60 |
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| 589 nm |
46.00 |
40.70 |
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| 600 nm |
45.90 |
40.50 |
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| 620 nm |
45.70 |
40.20 |
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| 640 nm |
45.60 |
39.90 |
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| 650 nm |
45.60 |
39.90 |
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| 660 nm |
45.50 |
39.90 |
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| 680 nm |
45.30 |
39.70 |
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| 700 nm |
45.20 |
39.60 |
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Calculated Relative Intensity Colors of Heyrovskyite in Air
Relative
Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
210% |
220% |
| R1 |
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| R2 |
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Calculated Properties of Heyrovskyite
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| Electron Density: |
Bulk Density (Electron Density)=6.12 gm/cc
note: Specific Gravity of Heyrovskyite =7.41 gm/cc.
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| Fermion Index: |
Fermion Index = 0.12
Boson Index = 0.88 |
| Photoelectric: |
PEHeyrovskyite =1,557.27 barns/electron
U=PEHeyrovskyite x rElectron Density=9,530.27 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Heyrovskyite is Not Radioactive |
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Heyrovskyite Classification
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| Dana Class: |
03.03.03.01 (03)Sulfides - Sulfosalts |
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(03.03)where 3 < z/y < 4 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(03.03.03)Dana Group |
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03.03.03.01 Heyrovskyite Pb10AgBi5S18 C mcm 2/m 2/m 2/m |
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03.03.03.02 Mozgovaite! PbBi4(S,Se)7 Bbmm 2/m 2/m 2/m |
| Strunz Class: |
02.JB.40b 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.J - Sulfosalts of PbS Archetype |
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02.JB -Galena derivatives, with Pb |
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02.JB.40b Aschamalmite Pb6Bi2S9 C 2/m 2/m |
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02.JB.40b Eskimoite Ag7Pb10Bi15S36 Am m |
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02.JB.40b Heyrovskyite Pb10AgBi5S18 C mcm 2/m 2/m 2/m |
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Other Heyrovskyite Information
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| References: |
NAME( Duda&Rejl90) PHYS. PROP.(Dana8) OPTIC PROP.(CanMin, v 41, p 431) |
| See Also: |
Links to other databases for Heyrovskyite :
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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Print or Cut-and-Paste your Heyrovskyite Specimen Label here :
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Heyrovskyite
Pb10AgBi5S18
Dana No: 03.03.03.01 Strunz No: 02.JB.40b
Locality:
Notes:
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