General Sorosite Information
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Chemical Formula: |
Cu(Sn,Sb) |
Composition: |
Molecular Weight = 183.02 gm |
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Copper 34.72 % Cu |
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Tin 48.65 % Sn |
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Antimony 16.63 % Sb |
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______ |
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100.00 % |
Empirical Formula: |
CuSn0.75Sb0.25 |
Environment: |
Gold and PGM placer deposits derived from sulfide-poor Alaskan-type intrusions (Clinopyroxinite-gabbro intrusions). |
IMA Status: |
Approved IMA 1998 (Dana # Added) |
Locality: |
The Baimka gold placer deposit, western Chukotka, Russian far east near the River Dolshoy Anyuy area, near Baimka River. Link to MinDat.org Location Data. |
Name Origin: |
Named after George Soros (1930-), well-known American financier, in recognition of his important support to science. |
Synonym: |
ICSD 56274 |
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IMA1994-047 |
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PDF 51-1536 |
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Sorosite Image |
Images:
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Sorosite Tin Stistaite
Comments: Back-scattered electron image of large sorosite crystal (So=partly skeletal) adjacent to stistaite (St). Tn=native tin. Note abundant microcrystals of sorosite isolated within native tin. (AmMin 83:903).
Location: Baimka gold-platinum group mineral placer deposit, Chukotka, Russian Far East.
Scale: Image Size 1.5 cm.
© American Mineralogist |
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Sorosite Crystallography
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Axial Ratios: |
a:c = 1:1.21413 |
Cell Dimensions: |
a = 4.217, c = 5.12, Z = 2; V = 78.85 Den(Calc)= 7.71 |
Crystal System: |
Hexagonal - Dihexagonal DipyramidalH-M Symbol (6/m 2/m 2/m) Space Group: P 63/mmc |
X Ray Diffraction: |
By Intensity(I/Io): 2.97(1), 2.094(0.9), 2.112(0.8), |
Crystal Structure:
Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above
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Wyckoff R W G , Crystal Structures , 1 (1963) p.85-237, Second edition. Interscience Publishers, New York, New York, Note: ideal nickel arsenide structure
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Physical Properties of Sorosite
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Cleavage: |
None |
Color: |
Pinkish tin white. |
Density: |
7.6 - 7.9, Average = 7.75 |
Diaphaniety: |
Opaque |
Fracture: |
Brittle - Generally displayed by glasses and most non-metallic minerals. |
Habit: |
Disseminated - Occurs in small, distinct particles dispersed in matrix. |
Hardness: |
5-5.5 - Apatite-Knife Blade |
Luster: |
Metallic |
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Optical Properties of Sorosite
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RL Anisotrophism: |
Distinct to moderate, from brownish gray to bluish gray. |
RL Bireflectance: |
Not observed in air, weakly to distinctly in oil. |
RL Color: |
White with occasional pinkish tint at high magnifications. |
Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Sorosite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
68.50 |
68.90 |

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| 420 nm |
69.30 |
70.00 |

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| 440 nm |
71.80 |
72.50 |

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| 460 nm |
73.70 |
74.10 |

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| 480 nm |
74.90 |
74.90 |

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| 500 nm |
75.70 |
75.90 |

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| 520 nm |
76.40 |
76.40 |

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| 540 nm |
76.80 |
77.10 |

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| 560 nm |
77.30 |
77.30 |

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| 580 nm |
77.80 |
78.00 |

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| 600 nm |
77.80 |
78.10 |

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| 620 nm |
78.10 |
78.70 |

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| 640 nm |
78.00 |
78.60 |

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| 660 nm |
78.00 |
78.60 |

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| 680 nm |
77.90 |
78.80 |

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| 700 nm |
77.90 |
78.90 |

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Standardized Intensity (100%) Reflection Spectra of Sorosite in Oil
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
57.40 |
58.10 |

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| 420 nm |
59.50 |
59.90 |

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| 440 nm |
61.20 |
62.40 |

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| 460 nm |
62.20 |
63.90 |

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| 480 nm |
62.40 |
64.70 |

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| 500 nm |
62.80 |
65.40 |

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| 520 nm |
63.30 |
65.90 |

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| 540 nm |
64.00 |
66.40 |

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| 560 nm |
64.10 |
66.60 |

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| 580 nm |
65.00 |
67.20 |

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| 600 nm |
65.30 |
67.60 |

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| 620 nm |
66.00 |
68.00 |

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| 640 nm |
65.80 |
68.10 |

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| 660 nm |
66.10 |
68.20 |

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| 680 nm |
66.30 |
68.20 |

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| 700 nm |
66.80 |
68.60 |

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Calculated Relative Intensity Colors of Sorosite in Air
Relative Intensity |
0% |
20% |
40% |
60% |
80% |
100% |
120% |
130% |
| R1 |
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| R2 |
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Calculated Relative Intensity Colors of Sorosite in Oil
Relative Intensity |
0% |
20% |
40% |
60% |
80% |
100% |
120% |
140% |
150% |
| R1 |
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| R2 |
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Calculated Properties of Sorosite
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Electron Density: |
relectron=6.68 gm/cc note: rSorosite =7.71 gm/cc. |
Fermion Index |
Fermion Index = 0.08085 Boson Index = 0.91915 |
Photoelectric: |
PESorosite = 227.90 barns/electron U=PESorosite x relectron=1,521.74 barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Sorosite is Not Radioactive |
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Sorosite Classification
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Dana Class: |
2.8.11.11 (2)Sulfides - Including Selenides and Tellurides |
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(2.8)where Am Bn Xp, with (m+n):p=1:1 |
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(2.8.11)Nickeline Group (Hexagonal: P63/mmc) |
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2.8.11.1 Nickeline NiAs P 63/mmc 6/m 2/m 2/m |
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2.8.11.2 Breithauptite NiSb P 63/mmc 6/m 2/m 2/m |
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2.8.11.3 Sederholmite NiSe P 63/mmc 6/m 2/m 2/m |
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2.8.11.4 Hexatestibiopanickelite (Ni,Pd)(Te,Sb) P 63/mmc 6/m 2/m 2/m |
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2.8.11.5 Sudburyite (Pd,Ni)Sb P 63/mmc 6/m 2/m 2/m |
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2.8.11.6 Kotulskite Pd(Te,Bi) P 63/mmc 6/m 2/m 2/m |
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2.8.11.7 Sobolevskite PdBi P 63/mmc 6/m 2/m 2/m |
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2.8.11.8 Stumpflite Pt(Sb,Bi) P 63/mmc 6/m 2/m 2/m |
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2.8.11.9 Langisite (Co,Ni)As P 63/mmc 6/m 2/m 2/m |
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2.8.11.10 Freboldite CoSe P 63/mmc 6/m 2/m 2/m |
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2.8.11.11 Sorosite ! Cu(Sn,Sb) P 63/mmc 6/m 2/m 2/m |
Strunz Class: |
II/C.20-05 II - Sulfides and sulphosalts |
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II/C - Sulfides with metal: sulfur, selenium and tellurium = 1:1 |
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II/C.20 - Nickeline group and related compounds, Polarite - Cherepanovite series |
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II/C.20-05 Sorosite Cu(Sn,Sb) P 63/mmc 6/m 2/m 2/m |
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II/C.20-10 Langisite (Co,Ni)As P 63/mmc 6/m 2/m 2/m |
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II/C.20-20 Nickeline NiAs P 63/mmc 6/m 2/m 2/m |
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II/C.20-30 Breithauptite NiSb P 63/mmc 6/m 2/m 2/m |
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II/C.20-40 Freboldite CoSe P 63/mmc 6/m 2/m 2/m |
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II/C.20-50 Sederholmite NiSe P 63/mmc 6/m 2/m 2/m |
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II/C.20-70 Hexatestibiopanickelite (Ni,Pd)(Te,Sb) P 63/mmc 6/m 2/m 2/m |
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II/C.20-75 Yuanjiangite AuSn P 63/mmc 6/m 2/m 2/m |
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II/C.20-80 Kotulskite Pd(Te,Bi) P 63/mmc 6/m 2/m 2/m |
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II/C.20-90 Sudburyite (Pd,Ni)Sb P 63/mmc 6/m 2/m 2/m |
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II/C.20-95 Stumpflite Pt(Sb,Bi) P 63/mmc 6/m 2/m 2/m |
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II/C.20-100 Polarite Pd(Bi,Pb) Ccm21 mm2 |
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II/C.20-110 Sobolevskite PdBi P 63/mmc 6/m 2/m 2/m |
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II/C.20-120 Ruthenarsenite (Ru,Ni)As P nma 2/m 2/m 2/m |
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II/C.20-130 Cherepanovite RhAs P nma 2/m 2/m 2/m |
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Other Sorosite Information
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References: |
NAME( AmMin) PHYS. PROP.(Am.Min.,Vol.83,p901-906,1998) OPTIC PROP.(Am.Min.,Vol.83,p904) |
See Also: |
Links to other databases for Sorosite :
1 -Am. Min. Crystal Structure Database
2 -Athena
3 -Google Images
4 -Google Scholar
5 -Handbook of Mineralogy (UofA)
6 -MinDAT
7 -MinMax(Deutsch)
8 -MinMax(English)
9 -Mineralienatlas (Deutsch)
10 -QUT Mineral Atlas
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Print or Cut-and-Paste your Sorosite Specimen Label here :
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Sorosite
Cu(Sn,Sb)
Dana No: 2.8.11.11 Strunz No: II/C.20-05
Locality:
Notes:
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