Indium Mineral Data

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General Indium Information

Chemical Formula:

Composition:

Molecular Weight = 114.82 gm

Indium 100.00 % In

______

100.00 %

Empirical Formula:

Environment:

In greisenized and albitized granite.

IMA Status:

Approved IMA 1964

Locality:

Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia Link to MinDat.org Location Data.

Name Origin:

Named for the element which is named after the indigo line in its spectrum.

Name Pronunciation:

Indium

Synonym:

ICSD 64794

PDF 5-642

Indium Image

Images:

Indium

Comments: A grain of native indium.
Location: Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia. Scale: Picture size 1.2 mm.
© Thomas Witzke / Abraxas-Verlag

Indium Crystallography

Axial Ratios:

a:c = 1:1.52307

Cell Dimensions:

a = 3.25, c = 4.95, Z = 2; V = 52.28 Den(Calc)= 7.29

Crystal System:

Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: I 4/mmm

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

By Intensity(I/I_o): 2.715(1), 2.298(0.36), 1.683(0.24),

Crystal Structure:

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Smith J F , Schneider V L , Journal of the Less-Common Metals , 7 (1964) p.17-22, Anisotropic thermal expansion of indium, Sample: .2 atomic % lead

Physical Properties of Indium

Color:

Yellow gray.

Density:

7.2 - 7.42, Average = 7.31

Diaphaneity:

Opaque

Hardness:

3.5 - Copper Penny

Luster:

Metallic

Optical Properties of Indium

RL Anisotrophism:

Weak.

RL Color:

Light rose-white.

Calculated Properties of Indium

Electron Density:

Bulk Density (Electron Density)=6.22 gm/cc
note: Specific Gravity of Indium =7.29 gm/cc.

Fermion Index:

Fermion Index = 0
Boson Index = 1

Photoelectric:

PE_Indium= 303.84 barns/electron
U=PE_Indium x rElectron Density=1,890.52 barns/cc.

Radioactivity:

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

Indium Classification

Dana Class:

01.01.14.01 (01)Native Elements

(01.01)with metallic elements other than the platinum group

(01.01.14)Dana Group

01.01.14.01 Indium In I 4/mmm 4/m 2/m 2/m

Strunz Class:

01.AC.05 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.05 Indium In I 4/mmm 4/m 2/m 2/m

Other Indium Information

References:

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

See Also:

Links to other databases for Indium :
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
15 - WWW-MINCRYST

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Indium

In
Dana No: 01.01.14.01 Strunz No: 01.AC.05
Locality:

Notes: