General Aikinite Information
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Chemical Formula: |
PbCuBiS3 |
Composition: |
Molecular Weight = 575.92 gm |
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Copper 11.03 % Cu |
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Bismuth 36.29 % Bi |
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Lead 35.98 % Pb |
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Sulfur 16.70 % S |
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______ |
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100.00 % |
Empirical Formula: |
PbCuBiS3 |
Environment: |
Found in hydrothermal veins. |
IMA Status: |
Valid Species (Pre-IMA) 1843 |
Locality: |
There are numerous minor localities. In the USA, in Utah, at the Sells mine, Alta, Salt Lake Co. In Nevada, near Cucomungo Spring and near the Sylvania Mountains, Esmeralda Co. Link to MinDat.org Location Data.
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Name Origin: |
For Dr. Arthur Aikin (1773-1854), a founder and long-time Secretary of the Geological Society of London, England. |
Synonym: |
ICSD 9120 |
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PDF 47-1736 |
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Aikinite Image |
Images:
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Images:
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Aikinite Crystallography
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Axial Ratios: |
a:b:c =0.9693:1:0.3484 |
Cell Dimensions: |
a = 11.297, b = 11.654, c = 4.061, Z = 4; V = 534.65 Den(Calc)= 7.15 |
Crystal System: |
Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pbnm |
X Ray Diffraction: |
By Intensity(I/Io): 3.17(1), 3.66(0.9), 3.59(0.8), |
Crystal Structure:
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drag2 - RMB Resize/Rotate
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Help on Above
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Kohatsu I , Wuensch B J , Acta Crystallographica, Section B , 27 (1971) p.1245-1252, The crystal structure of aikinite, PbCuBiS3, Note: B(3,3) altered for Pb and Cu, in order to reproduce Biso
View Additional jPOWD Structure files for Aikinite
[1]
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Physical Properties of Aikinite
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Cleavage: |
[010] Indistinct |
Color: |
Lead gray, Grayish black, Reddish brown. |
Density: |
6.1 - 6.8, Average = 6.44 |
Diaphaniety: |
Opaque |
Habit: |
Acicular - Occurs as needle-like crystals. |
Habit: |
Massive - Uniformly indistinguishable crystals forming large masses. |
Hardness: |
2-2.5 - Gypsum-Finger Nail |
Luster: |
Metallic |
Streak: |
grayish black |
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Optical Properties of Aikinite
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RL Anisotrophism: |
Distinct. |
RL Color: |
White, cream. |
RL Pleochroism: |
Cream white to pure white or light brown. |
Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Aikinite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
44.70 |
45.70 |

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| 420 nm |
44.90 |
45.80 |

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| 440 nm |
45.10 |
45.90 |

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| 460 nm |
45.40 |
46.20 |

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| 480 nm |
45.80 |
46.80 |

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| 500 nm |
46.30 |
47.30 |

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| 520 nm |
46.40 |
47.50 |

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| 540 nm |
46.30 |
47.30 |

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| 560 nm |
46.00 |
47.00 |

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| 580 nm |
45.50 |
46.70 |

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| 600 nm |
45.00 |
46.30 |

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| 620 nm |
44.60 |
45.90 |

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| 640 nm |
44.20 |
45.40 |

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| 660 nm |
43.70 |
45.00 |

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| 680 nm |
43.30 |
44.50 |

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| 700 nm |
43.00 |
44.00 |

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Calculated Relative Intensity Colors of Aikinite in Air
Relative Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
200% |
| R1 |
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| R2 |
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Calculated Properties of Aikinite
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Electron Density: |
relectron=6.01 gm/cc note: rAikinite =7.15 gm/cc. |
Fermion Index |
Fermion Index = 0.08076 Boson Index = 0.91924 |
Photoelectric: |
PEAikinite =1,358.58 barns/electron U=PEAikinite x relectron=8,163.38 barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Aikinite is Not Radioactive |
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Aikinite Classification
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Dana Class: |
3.4.5.1 (3)Sulfides - Sulfosalts |
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(3.4)where z/y > 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(3.4.5)Aikinite Group (Orthorhombic containing Pb, Cu, Bi, & S) |
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3.4.5.1 Aikinite PbCuBiS3 Pbnm 2/m 2/m 2/m |
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3.4.5.2 Krupkaite PbCuBi3S6 P mc21 mm2 |
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3.4.5.3 Gladite PbCuBi5S9 P nma 2/m 2/m 2/m |
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3.4.5.4 Hammarite Pb2Cu2Bi4S9(?) Pbnm 2/m 2/m 2/m |
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3.4.5.5 Friedrichite Pb5Cu5Bi7S18 Pb21m mm2 |
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3.4.5.6 Pekoite PbCuBi11(S,Se)18 P 21am mm2 |
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3.4.5.7 Lindstromite Pb3Cu3Bi7S15 Pbnm 2/m 2/m 2/m |
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3.4.5.8 IMA2000-044! Pb1.6Cu1.6Bi6.4S12 P mc21 mm2 |
Strunz Class: |
II/E.30-10 II - Sulfides and sulphosalts |
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II/E - Sulfosalts (S : As,Sb,Bi = x) Lead-Sulfosalts (Pb-Cu/Ag) with predominant Vismut x = 6.0 - 1.6 |
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II/E.30 - Aikinite - Pekoite series |
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II/E.30-10 Aikinite PbCuBiS3 Pbnm 2/m 2/m 2/m |
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II/E.30-15 Soucekite PbCuBi(S,Se)3 Pn21m mm2 |
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II/E.30-20 Friedrichite Pb5Cu5Bi7S18 Pb21m mm2 |
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II/E.30-25 Emilite! Cu10.7Pb10.7Bi21.3S48 P mc21 mm2 |
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II/E.30-30 Hammarite Pb2Cu2Bi4S9(?) Pbnm 2/m 2/m 2/m |
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II/E.30-40 Lindstromite Pb3Cu3Bi7S15 Pbnm 2/m 2/m 2/m |
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II/E.30-50 Krupkaite PbCuBi3S6 P mc21 mm2 |
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II/E.30-54 Paarite! Cu1.7Pb1.7Bi6.3S12 Pmcn 2/m 2/m 2/m |
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II/E.30-60 Gladite PbCuBi5S9 P nma 2/m 2/m 2/m |
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II/E.30-70 Pekoite PbCuBi11(S,Se)18 P 21am mm2 |
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Other Aikinite Information
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References: |
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
See Also: |
Links to other databases for Aikinite :
1 -Am. Min. Crystal Structure Database
2 -Athena
3 - Crocoite.com Mineral Locations
4 - EUROmin Project
5 -Google Images
6 -Google Scholar
7 -Handbook of Mineralogy (UofA)
8 -MinDAT
9 -MinMax(Deutsch)
10 -MinMax(English)
11 -Mineralienatlas (Deutsch)
12 -QUT Mineral Atlas
13 - WWW-MINCRYST
14 -École des Mines de Paris
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Print or Cut-and-Paste your Aikinite Specimen Label here :
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Aikinite
PbCuBiS3
Dana No: 3.4.5.1 Strunz No: II/E.30-10
Locality:
Notes:
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