Goldamalgam Mineral Data

Goldamalgam Mineral Data

General Goldamalgam Information

Chemical Formula:

(Au,Ag)Hg

Composition:

Molecular Weight = 375.28 gm

Silver 7.19 % Ag

Mercury 53.45 % Hg

Gold 39.36 % Au

______

100.00 %

Empirical Formula:

Au_0.75Ag_0.25Hg

IMA Status:

Not Approved IMA

Locality:

Link to MinDat.org Location Data.

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Goldamalgam Crystallography

Cell Dimensions:

a = 10.01, Z = 25; V = 1,003.00 Den(Calc)= 15.53

Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: I m3m

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

By Intensity(I/I_o): 2.22(1), 2.38(1), 1.24(0.8),

Physical Properties of Goldamalgam

Cleavage:

None

Color:

Bronze, Brass yellow.

Density:

15.47

Diaphaniety:

Opaque

Fracture:

Conchoidal - Uneven - Uneven fracture producing small, conchoidal fragments.

Hardness:

3 - Calcite

Luster:

Metallic

Streak:

light yellow

Calculated Properties of Goldamalgam

Electron Density:

r_electron=12.5 gm/cc
note: r_Goldamalgam=15.5 gm/cc.

Fermion Index

Fermion Index = 0.16142
Boson Index = 0.83858

Photoelectric:

PE_Goldamalgam=1,625.90 barns/electron
U=PE_Goldamalgam x r_electron=20319.52 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Goldamalgam is Not Radioactive

Goldamalgam Classification

Dana Class:

1.0.0.0 (1)Native Elements

(1.0)Without Dana Classification Numbers

(Amalgam Alloys)

Strunz Class:

I/A.02-70 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 Goldamalgam Information

References:

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

See Also:

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

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Goldamalgam

(Au,Ag)Hg
Dana No: Unknown Strunz No: I/A.02-70
Locality:

Notes: