Amalgam Mineral Data

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General Amalgam Information

Chemical Formula:

Ag2Hg3

Composition:

Molecular Weight = 817.51 gm

Silver 26.39 % Ag

Mercury 73.61 % Hg

______

100.00 %

Empirical Formula:

Ag₂Hg₃

Environment:

Base metal ore deposits with oxidisable mercury sulfides.

IMA Status:

Not Approved IMA

Locality:

Germany, Sweden. Link to MinDat.org Location Data.

Name Origin:

Named for the Medieval Latin "amalgama" for a mercury-metal alloy, generally when the other metal is silver.

Name Pronunciation:

Amalgam

Synonym:

Kongsbergite

Silver amalgam (Hg)

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Amalgam Crystallography

Cell Dimensions:

a = 9.9, Z = 10; V = 970.30 Den(Calc)= 13.99

Crystal System:

IsometricSpace Group: Unk

Physical Properties of Amalgam

Cleavage:

{???} Indistinct

Color:

White.

Density:

13.75 - 14.1, Average = 13.92

Diaphaneity:

Opaque

Fracture:

Malleable - Deforms rather than breaking apart with a hammer.

Habit:

Massive - Uniformly indistinguishable crystals forming large masses.

Hardness:

3-3.5 - Calcite-Copper Penny

Luminescence:

Non-fluorescent.

Luster:

Metallic

Magnetism:

Nonmagnetic

Streak:

white

Calculated Properties of Amalgam

Electron Density:

Bulk Density (Electron Density)=11.4 gm/cc
note: Specific Gravity of Amalgam =14.0 gm/cc.

Fermion Index:

Fermion Index = 0.22
Boson Index = 0.78

Photoelectric:

PE_Amalgam=1,348.65 barns/electron
U=PE_Amalgam x rElectron Density=15417.13 barns/cc.

Radioactivity:

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

Amalgam Classification

Dana Class:

01.01.08.00 (01)Native Elements

(01.01)with metallic elements other than the platinum group

(01.01.08)Silver Amalgam Alloys

01.01.08.00 Amalgam* Ag2Hg3 Unk Cubic

01.01.08.01 Moschellandsbergite Ag2Hg3 I m3m 4/m 3 2/m

01.01.08.02 Schachnerite Ag1.1Hg0.9 P 6₃/mmc 6/m 2/m 2/m

01.01.08.03 Paraschachnerite Ag3Hg2 C mcm 2/m 2/m 2/m

01.01.08.04 Luanheite Ag3Hg P 6₃/mmc 6/m 2/m 2/m

01.01.08.05 Eugenite Ag9Hg2 I 43m 4 3m

01.01.08.06 Weishanite (Au,Ag)3Hg2 P 6₃/mmc 6/m 2/m 2/m

Strunz Class:

01.AD.00 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.00 Amalgam* Ag2Hg3 Unk Cubic

Other Amalgam Information

References:

PHYS. PROP.(Dana)

See Also:

Links to other databases for Amalgam :
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
10 - Ruff.Info
11 - Scandinavian mineral gallery

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Print or Cut-and-Paste your Amalgam Specimen Label here :

Amalgam

Ag2Hg3
Dana No: 01.01.08.00 Strunz No: 01.AD.00
Locality:

Notes: