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.

Name Pronunciation:

Belendorffite + Pronunciation

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),

Crystal Structure:

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Lindahl T , Westman S , Acta Chemica Scandinavica , 23 (1969) p.1181-1190, The structure of the rhombohedral gamma brass like phase in the copper-mercury, system, Locality: synthetic

Physical Properties of Belendorffite

Color:

White, Yellow, Blackish brown.

Density:

13.2

Diaphaneity:

Opaque

Hardness:

2.5-4

Luster:

Metallic

Streak:

metallic

Calculated Properties of Belendorffite

Electron Density:

Bulk Density (Electron Density)=10.9 gm/cc
note: Specific Gravity of Belendorffite =13.2 gm/cc.

Fermion Index:

Fermion Index = 0.22
Boson Index = 0.78

Photoelectric:

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

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Belendorffite is Not Radioactive

Belendorffite Classification

Dana Class:

01.01.09.02 (01)Native Elements

(01.01)with metallic elements other than the platinum group

(01.01.09)Copper Amalgam Alloys

01.01.09.01 Kolymite Cu7Hg6 I 43m 4 3m

01.01.09.02 Belendorffite Cu7Hg6 R 3m 3m

Strunz Class:

01.AD.10 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)

01.A - Metals and Intermetallic Alloys

01.AD -Mercury-amalgam family

01.AD.10 Belendorffite Cu7Hg6 R 3m 3m

01.AD.10 Kolymite Cu7Hg6 I 43m 4 3m

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 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Ask about Belendorffite here :
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Print or Cut-and-Paste your Belendorffite Specimen Label here :

Belendorffite

Cu7Hg6
Dana No: 01.01.09.02 Strunz No: 01.AD.10
Locality:

Notes: