Belendorffite Mineral Data

Belendorffite Mineral Data +

General Belendorffite Information

Chemical Formula:

Cu7Hg6

Composition:

Molecular Weight = 1,648.36 gm

Copper 26.99 % Cu

Mercury 73.01 % Hg

______

100.00 %

Empirical Formula:

Cu₇Hg₆

Environment:

Dimorphous with kolymite.

IMA Status:

Approved IMA 1990

Locality:

Landsberg, near Obermoschel, Pfalz, Germany. Link to MinDat.org Location Data.

Name Origin:

Names in 1992 for Klaus Belendorff (b.1956), German mineral collector.

Synonym:

ICSD 56268

IMA1989-024

PDF 45-1474

Belendorffite Image

Images:

Belendorffite

Comments: Small grains of belendorffite from concentrates.
Location: Moschellandsberg, Pfalz, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Belendorffite Crystallography

Axial Ratios:

a:c = 1:1.20965

Cell Dimensions:

a = 13.36, c = 16.161, Z = 12; V = 2,498.11 Den(Calc)= 13.15

Crystal System:

Trigonal - Ditrigonal PyramidalH-M Symbol (3m) Space Group: R 3m

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

By Intensity(I/I_o): 2.221(1), 2.227(1), 2.523(1),

Physical Properties of Belendorffite

Color:

White, Yellow, Blackish brown.

Density:

13.2

Diaphaniety:

Opaque

Hardness:

2.5-4

Luster:

Metallic

Streak:

metallic

Calculated Properties of Belendorffite

Electron Density:

r_electron=10.9 gm/cc
note: r_{Belendorffite}=13.2 gm/cc.

Fermion Index

Fermion Index = 0.2205
Boson Index = 0.7795

Photoelectric:

PE_{Belendorffite}=1,260.72 barns/electron
U=PE_{Belendorffite} x r_electron=13738.58 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Belendorffite is Not Radioactive

Belendorffite Classification

Dana Class:

1.1.9.2 (1)Native Elements

(1.1)with metallic elements other than the platinum group

(1.1.9)Copper Amalgam Alloys

1.1.9.1 Kolymite Cu7Hg6 I 43m 4 3m

1.1.9.2 Belendorffite Cu7Hg6 R 3m 3m

Strunz Class:

I/A.02-22 I - Elements

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

I/A.02 - Mercury and Amalgame series

I/A.02-10 Mercury Hg R 3m 3 2/m

I/A.02-20 Kolymite Cu7Hg6 I 43m 4 3m

I/A.02-22 Belendorffite Cu7Hg6 R 3m 3m

I/A.02-28 Eugenite Ag9Hg2 I 43m 4 3m

I/A.02-30 Moschellandsbergite Ag2Hg3 I m3m 4/m 3 2/m

I/A.02-40 Luanheite Ag3Hg P 6₃/mmc 6/m 2/m 2/m

I/A.02-50 Schachnerite Ag1.1Hg0.9 P 6₃/mmc 6/m 2/m 2/m

I/A.02-60 Paraschachnerite Ag3Hg2 C mcm 2/m 2/m 2/m

I/A.02-70 Goldamalgam* (Au,Ag)Hg I m3m 4/m 3 2/m

I/A.02-80 Weishanite (Au,Ag)3Hg2 P 6₃/mmc 6/m 2/m 2/m

I/A.02-90 Potarite PdHg P 4/mmm 4/m 2/m 2/m

I/A.02-100 Leadamalgam HgPb2 I 4/mmm 4/m 2/m 2/m

Other Belendorffite Information

References:

NAME( Dana8) PHYS. PROP.(37th List of New Min.,Min. Mag.,1996)

See Also:

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

Belendorffite

Cu7Hg6
Dana No: 1.1.9.2 Strunz No: I/A.02-22
Locality:

Notes: