Bambollaite Mineral Data

Bambollaite Mineral Data +

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General Bambollaite Information

Chemical Formula:

Cu(Se,Te)2

Composition:

Molecular Weight = 245.79 gm

Copper 25.85 % Cu

Tellurium 25.96 % Te

Selenium 48.19 % Se

______

100.00 %

Empirical Formula:

CuSe_1.5Te_0.5

Environment:

In oxidized Au-Te ore in sub-parallel quartz veins in a hydrothermally altered tuff.

IMA Status:

Approved IMA 1972

Locality:

In the Moctezuma mine, near Moctezuma, Sonora, Mexico. Link to MinDat.org Location Data.

Name Origin:

For the Spanish nickname "La Bambolla" of the mine in which it occurs, which roughly translates into "hot air" in allusion to exaggerated tales of rich gold ore.

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Bambollaite Crystallography

Axial Ratios:

a:c = 1:1.45717

Cell Dimensions:

a = 3.865, c = 5.632, Z = 1; V = 84.13 Den(Calc)= 4.85

Crystal System:

Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: I 4₁/amd

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

By Intensity(I/I_o): 3.19(1), 1.961(0.7), 1.653(0.5),

Physical Properties of Bambollaite

Color:

Brownish gray, Gray.

Density:

5.64

Diaphaniety:

Opaque

Hardness:

3 - Calcite

Luster:

Metallic

Calculated Properties of Bambollaite

Electron Density:

r_electron=4.18 gm/cc
note: r_Bambollaite=4.85 gm/cc.

Fermion Index

Fermion Index = 0.05736
Boson Index = 0.94264

Photoelectric:

PE_Bambollaite= 144.11 barns/electron
U=PE_Bambollaite x r_electron= 602.84 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Bambollaite is Not Radioactive

Bambollaite Classification

Dana Class:

2.12.9.1 (2)Sulfides - Including Selenides and Tellurides

(2.12)where Am Bn Xp, with (m+n):p=1:2

(2.12.9)Dana Group

2.12.9.1 Bambollaite Cu(Se,Te)2 I 4₁/amd 4/m 2/m 2/m

Strunz Class:

II/D.27-10 II - Sulfides and sulphosalts

II/D - Sulfides with metal: sulfur, selenium and tellurium < 1:1, Tellurides with Copper, Silver, Gold

II/D.27 - Bambolaite series

II/D.27-10 Bambollaite Cu(Se,Te)2 I 4₁/amd 4/m 2/m 2/m

Other Bambollaite Information

References:

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

See Also:

Links to other databases for Bambollaite :
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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Bambollaite

Cu(Se,Te)2
Dana No: 2.12.9.1 Strunz No: II/D.27-10
Locality:

Notes: