Danbaite Mineral Data

Danbaite Mineral Data +

General Danbaite Information

Chemical Formula:

CuZn2

Composition:

Molecular Weight = 194.33 gm

Zinc 67.30 % Zn

Copper 32.70 % Cu

______

100.00 %

Empirical Formula:

CuZn₂

Environment:

In a Cu-Ni deposit.

IMA Status:

Approved IMA 1983

Locality:

Danba, Sichuan Province, China. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

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Danbaite Crystallography

Cell Dimensions:

a = 7.762, Z = 12; V = 467.65 Den(Calc)= 8.28

Crystal System:

IsometricSpace Group: Unk

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

By Intensity(I/I_o): 2.0803(1), 1.3732(0.4), 2.1574(0.4),

Physical Properties of Danbaite

Cleavage:

None

Color:

Gray white, Silver white.

Density:

7.36

Diaphaniety:

Opaque

Habit:

Aggregates - Made of numerous individual crystals or clusters.

Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Habit:

Spherical - Spherical, rounded aggregates.

Hardness:

4 - Fluorite

Luster:

Metallic

Optical Properties of Danbaite

RL Color:

White with a milky blue tint, slightly yellowish compared to chromium.

Calculated Properties of Danbaite

Electron Density:

r_electron=7.58 gm/cc
note: r_Danbaite=8.28 gm/cc.

Fermion Index

Fermion Index = 0.02759
Boson Index = 0.97241

Photoelectric:

PE_Danbaite= 50.00 barns/electron
U=PE_Danbaite x r_electron= 379.25 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Danbaite is Not Radioactive

Danbaite Classification

Dana Class:

1.1.6.1 (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.04-30 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 Danbaite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Danbaite :
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 Danbaite Specimen Label here :

Danbaite

CuZn2
Dana No: 1.1.6.1 Strunz No: I/A.04-30
Locality:

Notes: