Sulphotsumoite Mineral Data

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General Sulphotsumoite Information

Chemical Formula:

Bi3Te2S

Composition:

Molecular Weight = 914.21 gm

Bismuth 68.58 % Bi

Tellurium 27.91 % Te

Sulfur 3.51 % S

______

100.00 %

Empirical Formula:

Bi₃Te₂S

Environment:

Of hydrothermal origin, with other bismuth tellurides.

IMA Status:

Approved IMA 1982

Locality:

Magadan and Egerlyakh deposit, Yakutia, Russia. Link to MinDat.org Location Data.

Name Origin:

Named in allusion to the chemical relationship with tsumoite.

Name Pronunciation:

Sulphotsumoite + Pronunciation

Sulphotsumoite Image

Images:

Sulphotsumoite

Comments: Dark gray sulphotsumoite, tarnishing, foliated in milky quartz.
Location: Mina de la Carcel, Zacatecas, Mexico. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Sulphotsumoite Crystallography

Axial Ratios:

a:c = 1:5.42863

Cell Dimensions:

a = 4.316, c = 23.43, Z = 2; V = 377.98 Den(Calc)= 8.03

Crystal System:

Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: P 3m1

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

By Intensity(I/I_o): 3.16(1), 2.32(0.6), 2.16(0.5),

Physical Properties of Sulphotsumoite

Cleavage:

{???} Perfect

Color:

Gray white.

Diaphaneity:

Opaque

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Habit:

Aggregates - Made of numerous individual crystals or clusters.

Habit:

Massive - Uniformly indistinguishable crystals forming large masses.

Hardness:

2.5 - Finger Nail

Luster:

Metallic

Optical Properties of Sulphotsumoite

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Sulphotsumoite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
420 nm	51.80	53.80
440 nm	51.80	54.10
460 nm	52.00	54.70
480 nm	52.30	55.30
500 nm	52.70	56.00
520 nm	53.20	56.70
540 nm	53.60	57.30
560 nm	53.80	57.80
580 nm	53.90	58.00
600 nm	53.80	58.00
620 nm	53.70	58.00
640 nm	53.60	58.00
660 nm	53.60	57.90
680 nm	53.60	57.90
700 nm	53.60	57.80

**Calculated Relative Intensity Colors of Sulphotsumoite in Air**
Relative Intensity	0%	20%	40%	60%	80%	100%	120%	140%	160%	170%
R₁
R₂

Calculated Properties of Sulphotsumoite

Electron Density:

Bulk Density (Electron Density)=6.48 gm/cc
note: Specific Gravity of Sulphotsumoite =8.03 gm/cc.

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_{Sulphotsumoite}=1,473.38 barns/electron
U=PE_{Sulphotsumoite} x rElectron Density=9,550.83 barns/cc.

Radioactivity:

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

Sulphotsumoite Classification

Dana Class:

02.08.20.02 (02)Sulfides - Including Selenides and Tellurides

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

(02.08.20)Tsumoite Group (Trigonal: P-3m1)

02.08.20.01 Tsumoite BiTe P 3m1 3 2/m

02.08.20.02 Sulphotsumoite Bi3Te2S P 3m1 3 2/m

02.08.20.03 Nevskite Bi(Se,S) P 3m1 3 2/m

02.08.20.04 Ingodite Bi(S,Te) P 3m1 3 2/m

02.08.20.05 Telluronevskite! Bi3TeSe2 P 3m1 3 2/m

Strunz Class:

02.DC.05b 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.D - Metal Sulfides, M:S = 3:4 and 2:3

02.DC -Variable M:S

02.DC.05b Ingodite Bi(S,Te) P 3m1 3 2/m

02.DC.05b Nevskite Bi(Se,S) P 3m1 3 2/m

02.DC.05b Sulphotsumoite Bi3Te2S P 3m1 3 2/m

02.DC.05b Tsumoite BiTe P 3m1 3 2/m

02.DC.05b Telluronevskite! Bi3TeSe2 P 3m1 3 2/m

Other Sulphotsumoite Information

References:

NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Sulphotsumoite :
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

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

Sulphotsumoite

Bi3Te2S
Dana No: 02.08.20.02 Strunz No: 02.DC.05b
Locality:

Notes: