Cadmium Mineral Data

Cadmium Mineral Data +

General Cadmium Information

Chemical Formula:

Composition:

Molecular Weight = 112.41 gm

Cadmium 100.00 % Cd

______

100.00 %

Empirical Formula:

Environment:

Found in the heavy, non-magnetic fraction of a mechanical concentrate from a gabbro intrusive.

IMA Status:

Approved IMA 1979

Locality:

From the Ust'-Khannin intrusive, Vilyui River basin, eastern Siberian platform. Link to MinDat.org Location Data.

Name Origin:

From the Greek for "calamine," as the element occurs in slags resulting from smelting smithsonite (formerly calamine) ore.

Synonym:

ICSD 64702

PDF 5-674

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Cadmium Crystallography

Axial Ratios:

a:c = 1:1.88553

Cell Dimensions:

a = 2.979, c = 5.617, Z = 2; V = 43.17 Den(Calc)= 8.65

Crystal System:

Hexagonal - Dihexagonal DipyramidalH-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): 2.331(1), 2.55(0.4), 2.79(0.3),

Crystal Structure:

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Wyckoff R W G , Crystal Structures , 1 (1963) p.7-83, Second edition. Interscience Publishers, New York, New York, Hexagonal closest packed, hcp, structure

Physical Properties of Cadmium

Color:

Tin white.

Density:

8.6

Diaphaniety:

Opaque

Hardness:

1-2 - Between Talc and Gypsum

Luster:

Metallic

Optical Properties of Cadmium

RL Color:

Tin white with bluish tint.

Calculated Properties of Cadmium

Electron Density:

r_electron=7.39 gm/cc
note: r_Cadmium=8.65 gm/cc.

Fermion Index

Fermion Index = 0.2503
Boson Index = 0.7497

Photoelectric:

PE_Cadmium= 282.10 barns/electron
U=PE_Cadmium x r_electron=2,083.95 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Cadmium is Not Radioactive

Cadmium Classification

Dana Class:

1.1.5.2 (1)Native Elements

(1.1)with metallic elements other than the platinum group

(1.1.5)Dana Group

1.1.5.1 Zinc Zn P 6₃/mmc 6/m 2/m 2/m

1.1.5.2 Cadmium Cd P 6₃/mmc 6/m 2/m 2/m

Strunz Class:

I/A.04-40 I - Elements

I/A - Metallic and intermetallic compounds, Carbides, Nitrides, Phosphides and Silicides

I/A.04 - Zinc-Cadmium series

I/A.04-10 Zinc Zn P 6₃/mmc 6/m 2/m 2/m

I/A.04-15 Brass* Cu3Zn2 Unk Cubic

I/A.04-20 Zhanghengite (Cu,Zn,Fe,Al,Cr) I m3m 4/m 3 2/m

I/A.04-30 Danbaite CuZn2 Unk Cubic

I/A.04-40 Cadmium Cd P 6₃/mmc 6/m 2/m 2/m

Other Cadmium Information

References:

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

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Cadmium

Cd
Dana No: 1.1.5.2 Strunz No: I/A.04-40
Locality:

Notes: