Brass Mineral Data

Brass Mineral Data

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General Brass Information

Chemical Formula:

Cu3Zn2

Composition:

Molecular Weight = 321.42 gm

Zinc 40.69 % Zn

Copper 59.31 % Cu

______

100.00 %

Empirical Formula:

Cu₃Zn₂

IMA Status:

Not Approved IMA

Locality:

Link to MinDat.org Location Data.

Synonym:

Laiton

Messing

Brass Image

Images:

Brass

Comments: Small brassy metallic grain of brass.
Location: Nurek Ore District, Uzbekistan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Brass Crystallography

Crystal System:

IsometricSpace Group: Unk

Physical Properties of Brass

Color:

Yellow.

Diaphaniety:

Opaque

Luster:

Metallic

Calculated Properties of Brass

Fermion Index

Fermion Index = 0.01668
Boson Index = 0.98332

Photoelectric:

PE_Brass= 48.42 barns/electron
U=PE_Brass x r_electron= . barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Brass is Not Radioactive

Brass Classification

Dana Class:

1.1.6.0 (1)Native Elements

(1.1)with metallic elements other than the platinum group

(1.1.6)Dana Group

1.1.6.0 Brass * Cu3Zn2 Unk Cubic

1.1.6.1 Danbaite CuZn2 Unk Cubic

1.1.6.2 Zhanghengite (Cu,Zn,Fe,Al,Cr) I m3m 4/m 3 2/m

Strunz Class:

I/A.04-15 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 Brass Information

References:

NAME( Athena) PHYS. PROP.(Am.Min.,Vol.77,p446,1992)

See Also:

Links to other databases for Brass :
1 -Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 -Athena 4 -Google Images 5 -Google Scholar 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas

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

Brass

Cu3Zn2
Dana No: 1.1.6.0 Strunz No: I/A.04-15
Locality:

Notes: