Sorosite Mineral Data

General Sorosite Information

Chemical Formula:

Cu(Sn,Sb)

Composition:

Molecular Weight = 183.02 gm

Copper 34.72 % Cu

Tin 48.65 % Sn

Antimony 16.63 % Sb

______

100.00 %

Empirical Formula:

CuSn_0.75Sb_0.25

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.

Name Pronunciation:

Sorosite

Synonym:

ICSD 56274

IMA1994-047

PDF 51-1536

Sorosite Image

Images:

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

Sorosite Crystallography

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 Dipyramidal H-M Symbol (6/m 2/m 2/m) Space Group: P 6₃/mmc

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.97(1), 2.094(0.9), 2.112(0.8),

Physical Properties of Sorosite

Cleavage:

None

Color:

Pinkish tin white.

Density:

7.6 - 7.9, Average = 7.75

Diaphaneity:

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

Optical Properties of Sorosite

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	∑ R₁(λ)	∑ R₂(λ)
400 nm	68.50	68.90
420 nm	69.30	70.00
440 nm	71.80	72.50
460 nm	73.70	74.10
480 nm	74.90	74.90
500 nm	75.70	75.90
520 nm	76.40	76.40
540 nm	76.80	77.10
560 nm	77.30	77.30
580 nm	77.80	78.00
600 nm	77.80	78.10
620 nm	78.10	78.70
640 nm	78.00	78.60
660 nm	78.00	78.60
680 nm	77.90	78.80
700 nm	77.90	78.90

**Standardized Intensity (100%) Reflection Spectra of Sorosite in Oil**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
400 nm	57.40	58.10
420 nm	59.50	59.90
440 nm	61.20	62.40
460 nm	62.20	63.90
480 nm	62.40	64.70
500 nm	62.80	65.40
520 nm	63.30	65.90
540 nm	64.00	66.40
560 nm	64.10	66.60
580 nm	65.00	67.20
600 nm	65.30	67.60
620 nm	66.00	68.00
640 nm	65.80	68.10
660 nm	66.10	68.20
680 nm	66.30	68.20
700 nm	66.80	68.60

**Calculated Relative Intensity Colors of Sorosite in Air**
Relative Intensity	0%	20%	40%	60%	80%	100%	120%	130%
R₁
R₂

**Calculated Relative Intensity Colors of Sorosite in Oil**
Relative Intensity	0%	20%	40%	60%	80%	100%	120%	140%	150%
R₁
R₂

Calculated Properties of Sorosite

Electron Density:

Bulk Density (Electron Density)=6.68 gm/cc
note: Specific Gravity of Sorosite =7.71 gm/cc.

Fermion Index:

Fermion Index = 0.08
Boson Index = 0.92

Photoelectric:

PE_Sorosite= 227.90 barns/electron
U=PE_Sorosite x rElectron Density=1,521.74 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Sorosite is Not Radioactive

Sorosite Classification

Dana Class:

02.08.11.12 (02)Sulfides - Including Selenides and Tellurides

(02.08)where Am Bn Xp, with (m+n):p=1:1

(02.08.11)Nickeline Group (Hexagonal: P63/mmc)

02.08.11.01 Nickeline NiAs P 6₃/mmc 6/m 2/m 2/m

02.08.11.02 Breithauptite NiSb P 6₃/mmc 6/m 2/m 2/m

02.08.11.03 Sederholmite NiSe P 6₃/mmc 6/m 2/m 2/m

02.08.11.04 Hexatestibiopanickelite (Ni,Pd)(Te,Sb) P 6₃/mmc 6/m 2/m 2/m

02.08.11.05 Sudburyite (Pd,Ni)Sb P 6₃/mmc 6/m 2/m 2/m

02.08.11.06 Kotulskite Pd(Te,Bi) P 6₃/mmc 6/m 2/m 2/m

02.08.11.07 Sobolevskite PdBi P 6₃/mmc 6/m 2/m 2/m

02.08.11.08 Stumpflite Pt(Sb,Bi) P 6₃/mmc 6/m 2/m 2/m

02.08.11.09 Langisite (Co,Ni)As P 6₃/mmc 6/m 2/m 2/m

02.08.11.10 Freboldite CoSe P 6₃/mmc 6/m 2/m 2/m

02.08.11.11 Achavalite! FeSe P 6₃/mmc 6/m 2/m 2/m

02.08.11.12 Sorosite! Cu(Sn,Sb) P 6₃/mmc 6/m 2/m 2/m

02.08.11.13 Vavrinite! Ni2SbTe2 P 6₃/mmc 6/m 2/m 2/m

Strunz Class:

01.AC.15 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)

01.A - Metals and Intermetallic Alloys

01.AC -Indium-tin family

01.AC.15 Sorosite! Cu(Sn,Sb) P 6₃/mmc 6/m 2/m 2/m

01.AC.15 Yuanjiangite AuSn P 6₃/mmc 6/m 2/m 2/m

Other Sorosite Information

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 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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Print or Cut-and-Paste your Sorosite Specimen Label here :

Sorosite

Cu(Sn,Sb)
Dana No: 02.08.11.12 Strunz No: 01.AC.15
Locality:

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