Mohite Mineral Data

Mohite Mineral Data +

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General Mohite Information

Chemical Formula:

Cu2SnS3

Composition:

Molecular Weight = 342.00 gm

Copper 37.16 % Cu

Tin 34.71 % Sn

Sulfur 28.13 % S

______

100.00 %

Empirical Formula:

Cu₂SnS₃

Environment:

Hydrothermal origin.

IMA Status:

Approved IMA 1982

Locality:

Kochbulak deposit, eastern Uzbekistan. Link to MinDat.org Location Data.

Name Origin:

Named for Gunter Moh, University of Heidelberg, Germany.

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Mohite Crystallography

Axial Ratios:

a:b:c =0.5768:1:1.7315

Cell Dimensions:

a = 6.64, b = 11.51, c = 19.93, Z = 12; alpha = 90°, beta = 109.75°, gamma = 90° V = 1,433.58 Den(Calc)= 4.75

Crystal System:

Triclinic - PedialH-M Symbol (1) Space Group: P1

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

By Intensity(I/I_o): 3.13(1), 1.92(0.7), 2.72(0.2),

Physical Properties of Mohite

Color:

Greenish gray.

Density:

4.86

Diaphaniety:

Opaque

Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Hardness:

4 - Fluorite

Luster:

Metallic

Streak:

gray

Optical Properties of Mohite

RL Anisotrophism:

Distinct, but without color effects..

RL Color:

Gray with greenish tint.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Mohite in Air**
λ	R	∑ R(λ)
440 nm	24.60
460 nm	24.70
480 nm	25.30
500 nm	25.60
520 nm	25.40
540 nm	25.50
560 nm	25.60
580 nm	25.70
600 nm	25.60
620 nm	25.70
640 nm	26.00
660 nm	25.90
680 nm	26.20
700 nm	26.40

**Calculated Relative Intensity Colors of Mohite in Air**
Relative Intensity	0%	40%	80%	100%	120%	160%	200%	240%	280%	320%	360%
R

Calculated Properties of Mohite

Electron Density:

r_electron=4.33 gm/cc
note: r_Mohite=4.75 gm/cc.

Fermion Index

Fermion Index = 0.05979
Boson Index = 0.94021

Photoelectric:

PE_Mohite= 123.49 barns/electron
U=PE_Mohite x r_electron= 535.12 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Mohite is Not Radioactive

Mohite Classification

Dana Class:

2.9.16.1 (2)Sulfides - Including Selenides and Tellurides

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

(2.9.16)Dana Group

2.9.16.1 Mohite Cu2SnS3 P1 1

Strunz Class:

II/C.17-30 II - Sulfides and sulphosalts

II/C - Sulfides with metal: sulfur, selenium and tellurium = 1:1

II/C.17 - Hertzenbergite - Kylindrite series

II/C.17-10 Herzenbergite SnS Pbnm 2/m 2/m 2/m

II/C.17-20 Stistaite SnSb R 3m 3 2/m

II/C.17-30 Mohite Cu2SnS3 P1 1

II/C.17-40 Teallite PbSnS2 Pbnm 2/m 2/m 2/m

II/C.17-45 Suredaite! PbSnS3 P nma 2/m 2/m 2/m

II/C.17-50 Potosiite Pb6Sn2FeSb2S14 P 1 ? 1

II/C.17-55 Levyclaudite Pb8Sn7Cu3(Bi,Sb)3S28 A2 ? 2

II/C.17-60 Incaite Pb4Sn4FeSb2S15 P1 ? 1

II/C.17-70 Franckeite (Pb,Sn)6FeSn2Sb2S14 P1 1

II/C.17-80 Cylindrite Pb3Sn4FeSb2S14 P1 1

Other Mohite Information

References:

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

See Also:

Links to other databases for Mohite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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

Mohite

Cu2SnS3
Dana No: 2.9.16.1 Strunz No: II/C.17-30
Locality:

Notes: