Mineral of the Month Club - An Inexpensive Way to Enjoy Minerals General Pekoite InformationPbCuBi11(S,Se)18 |
Molecular Weight = 3,240.51 gm |
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Copper 1.96 % Cu |
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Bismuth 70.94 % Bi |
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Lead 6.39 % Pb |
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Selenium 4.87 % Se |
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Sulfur 15.83 % S |
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100.00 % |
PbCuBi11S16Se2 |
In magnetite pipes that cut felsic sediments and pyroclastics. |
Approved IMA 1976 |
Peko mine, Tennant Creek, Australia. Link to MinDat.org Location Data. |
Named for its locality. |
Pekoite |
ICSD 60151 |
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PDF 30-488 |
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Pekoite Crystallographya:b:c =0.3399:1:0.119 |
a = 11.472, b = 33.744, c = 4.016, Z = 2; V = 1,554.64 Den(Calc)= 6.92 |
Orthorhombic - PyramidalH-M Symbol (mm2) Space Group: P 21am |
By Intensity(I/Io): 3.14(1), 3.025(0.4), 3.622(0.3), |
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Mouse
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| Physical Properties of Pekoite{010} Good |
Lead gray. |
Opaque |
2-3 - Gypsum-Calcite |
Metallic |
lead gray |
| Optical Properties of PekoiteNCalc= 1.94 - from Gladstone-Dale relationship (KC = 0.1353) where Ncalc=Dcalc*KC+1 |
White to cream. |
| Calculated Properties of PekoiteBulk Density (Electron Density)=5.76 gm/cc |
note: Specific Gravity of Pekoite =6.92 gm/cc. Fermion Index = 0.01 |
Boson Index = 0.99 PEPekoite =1,496.26 barns/electron |
U=PEPekoite x rElectron Density=8,614.28 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Pekoite is Not Radioactive | Pekoite Classification03.04.05.06 (03)Sulfides - Sulfosalts |
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(03.04)where z/y > 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(03.04.05)Aikinite Group (Orthorhombic containing Pb, Cu, Bi, & S) |
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02.HB.05a 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.H - Sulfosalts of SnS Archetype |
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02.HB -With Cu, Ag, Hg, Fe, Sn and Pb |
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| Other Pekoite InformationNAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
Links to other databases for Pekoite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - Google Images 6 - Google Scholar 7 - Handbook of Mineralogy (MinSocAm) 8 - Handbook of Mineralogy (UofA) 9 - MinDAT 10 - MinMax(Deutsch) 11 - MinMax(English) 12 - Mineralienatlas (Deutsch) 13 - QUT Mineral Atlas 14 - Ruff.Info 15 - WWW-MINCRYST Search for Pekoite using: Visit our Advertisers for Pekoite : AA Mineral SpecimensB & L Fine Minerals Crystalarium.com Dan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Diamond Dan Publications e-Rocks Auctions Excalibur Minerals Exceptional Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club Wrights Rock Shop Translate Pekoite Mineral Data : Ask about Pekoite here : Print or Cut-and-Paste your Pekoite Specimen Label here :
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