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General Kirkiite Information |
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 Chemical Formula: |
Pb10Bi3As3S19 | ||
| Composition: |
Molecular Weight = 3,532.96 gm | ||
| Bismuth 17.75 % Bi | |||
| Arsenic 6.36 % As | |||
| Lead 58.65 % Pb | |||
| Sulfur 17.24 % S | |||
| ______ | |||
| 100.00 % | |||
| Empirical Formula: |
Pb10Bi3As3S19 | ||
| Environment: |
In a hydrothermal Pb-Zn deposit. | ||
| IMA Status: |
Approved IMA 1985 | ||
| Locality: |
In the Aghios Philippos Pb-Zn deposit, near Kirki, Thrace, Greece. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for the locality. | ||
| Name Pronunciation: |
Kirkiite  |
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Search for Kirkiite Images | |||
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Images:
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Kirkiite Crystallography |
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| Axial Ratios: |
a:b:c =0.3311:1:0.3384 | ||
| Cell Dimensions: |
a = 8.621, b = 26.03, c = 8.81, Z = 2; beta = 119.21° V = 1,725.60 Den(Calc)= 6.80 | ||
| Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/m | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.26(1), 3.07(0.7), 3.475(0.6), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Kirkiite |
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| Color: |
Tin white. | ||
| Diaphaneity: |
Opaque | ||
| Habit: |
Microscopic Crystals - Crystals visible only with microscopes. | ||
| Habit: |
Pseudo Hexagonal - Crystals show a hexagonal outline. | ||
| Habit: |
Twinning Common - Crystals are usually twinned. | ||
| Hardness: |
3.5 - Copper Penny | ||
| Luster: |
Metallic | ||
Optical Properties of Kirkiite |
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| Optical Data: |
NCalc= 1.21 - from Gladstone-Dale relationship (KC = 0.0303) where Ncalc=Dcalc*KC+1 |
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| RL Anisotrophism: |
Weak. | ||
| RL Color: |
White. | ||
Calculated Properties of Kirkiite |
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| Electron Density: |
Bulk Density (Electron Density)=5.67 gm/cc note: Specific Gravity of Kirkiite =6.80 gm/cc. |
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| Fermion Index: |
Fermion Index = 0.13 Boson Index = 0.87 |
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| Photoelectric: |
PEKirkiite =1,429.12 barns/electron U=PEKirkiite x rElectron Density=8,097.97 barns/cc. |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Kirkiite is Not Radioactive |
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Kirkiite Classification |
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| Dana Class: |
03.04.17.01 (03)Sulfides - Sulfosalts | ||
| (03.04)where z/y > 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals | |||
| (03.04.17)Dana Group | |||
| Strunz Class: |
02.JB.30b 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf | ||
| 02.J - Sulfosalts of PbS Archetype | |||
| 02.JB -Galena derivatives, with Pb | |||
Other Kirkiite Information |
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| References: |
NAME( AntBidBlaNic1) PHYS. PROP.(Dana8, AmMin 91:1952) OPTIC PROP.(AntBidBlaNic1) | ||
| See Also: |
Links to other databases for Kirkiite : 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 Search for Kirkiite using: Visit our Advertisers for Kirkiite : A Bijoux Google Search for KirkiiteAdam's Minerals Google Search for Kirkiite Cape Minerals Google Search for Kirkiite Dakota Matrix Minerals Google Search for Kirkiite Excalibur Mineral Corp. Google Search for Kirkiite Exceptional Minerals Google Search for Kirkiite John Betts Fine Minerals Search for Kirkiite McDougall Minerals Google Search for Kirkiite Mineral News Website Link Rock and Mineral Shows Google Search for Kirkiite Weinrich Minerals, Inc. Google Search for Kirkiite Ask about Kirkiite here : Print or Cut-and-Paste your Kirkiite Specimen Label here :
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