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Nuffieldite Mineral Data |
General Nuffieldite Information |
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Pb2Cu(Pb,Bi)Bi2S7 | |
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Molecular Weight = 1,328.46 gm | |
Copper 4.78 % Cu | ||
Bismuth 39.33 % Bi | ||
Lead 38.99 % Pb | ||
Sulfur 16.90 % S | ||
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100.00 % | ||
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Pb2.5CuBi2.5S7 | |
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Found in vugs in a small quartz vein in the Lime Creek stock. | |
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Approved IMA 1968 | |
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Lime Creek stock, Alice Arm, BC, Canada. Link to MinDat.org Location Data. | |
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Named for Edward W. Nuffield (1914-), Canadian mineralogist. | |
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Nuffieldite + Pronunciation ![]() |
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ICSD 84625 | |
IMA1967-003 | ||
PDF 19-675 | ||
Nuffieldite Crystallography |
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a:b:c =0.6833:1:0.1884 | |
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a = 14.61, b = 21.38, c = 4.03, Z = 4; V = 1,258.82 Den(Calc)= 7.01 | |
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Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pbnm | |
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By Intensity(I/Io): 3.54(1), 3.66(1), 4(0.9), | |
Physical Properties of Nuffieldite |
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{001} Perfect | |
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Gray, Steel gray, Grayish green, Reddish brown. | |
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7.01 | |
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Opaque | |
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Brittle - Uneven - Very brittle fracture producing uneven fragments. | |
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Acicular - Occurs as needle-like crystals. | |
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Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). | |
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3.5-4 - Copper Penny-Fluorite | |
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Metallic | |
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grayish black | |
Optical Properties of Nuffieldite |
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Very weak, from bluish gray to grayish red. | |
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Pale creamy white. | |
Calculated Properties of Nuffieldite |
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Bulk Density (Electron Density)=5.84 gm/cc note: Specific Gravity of Nuffieldite =7.01 gm/cc. |
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Fermion Index = 0.08 Boson Index = 0.92 |
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PENuffieldite =1,481.29 barns/electron U=PENuffieldite x rElectron Density=8,652.83 barns/cc. |
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GRapi = 0 (Gamma Ray American Petroleum Institute Units) Nuffieldite is Not Radioactive |
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Nuffieldite Classification |
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03.03.04.01 (03)Sulfides - Sulfosalts | |
(03.03)where 3 < z/y < 4 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals | ||
(03.03.04)Dana Group | ||
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02.JB.25g 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 Nuffieldite Information |
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NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) | |
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Links to other databases for Nuffieldite : 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 Nuffieldite using: Visit our Advertisers for Nuffieldite : Ask about Nuffieldite here : Print or Cut-and-Paste your Nuffieldite Specimen Label here :
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