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Eugenite Mineral Data
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General Eugenite Information
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 Chemical Formula: |
Ag9Hg2 |
| Composition: |
Molecular Weight = 1,371.99 gm |
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Silver 70.76 % Ag |
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Mercury 29.24 % Hg |
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______ |
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100.00 % |
| Empirical Formula: |
Ag9Hg2 |
| IMA Status: |
Approved IMA 1986 |
| Locality: |
Sieroszowice copper mine, Lubin-Sieroszowice distr., Poland. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Eugen Friedrich Stumpfl (1931-), Mineralogist, Mining University Leoben, Austria. |
| Name Pronunciation: |
Eugenite  |
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Eugenite Image |
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Images:
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Images:
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Eugenite
Comments: Brassy, silvery eugenite alteration of leaf silver to 4mm.
Location: Elisa de Bordos mine, Copiapó, Atacama Province, Chile.
Scale: Picture size 1 cm.
© Tom Loomis / Dakota Matrix |
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Eugenite Crystallography
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| Cell Dimensions: |
a = 10.02, Z = 4; V = 1,006.01 Den(Calc)= 9.06 |
| Crystal System: |
Isometric - Hextetrahedral H-M Symbol (4 3m) Space Group: I 43m |
| X Ray Diffraction: |
By Intensity(I/Io): 2.37(1), 0.95(0.8), 2.1(0.8), |
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Physical Properties of Eugenite
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| Color: |
Silver white. |
| Density: |
10.75 |
| Diaphaneity: |
Opaque |
| Hardness: |
2.5-3 - Finger Nail-Calcite |
| Luster: |
Metallic |
| Streak: |
metallic |
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Calculated Properties of Eugenite
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| Electron Density: |
Bulk Density (Electron Density)=7.70 gm/cc
note: Specific Gravity of Eugenite =9.06 gm/cc.
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| Fermion Index: |
Fermion Index = 0.08
Boson Index = 0.92 |
| Photoelectric: |
PEEugenite = 676.73 barns/electron
U=PEEugenite x rElectron Density=5,210.60 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Eugenite is Not Radioactive |
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Eugenite Classification
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| Dana Class: |
01.01.08.05 (01)Native Elements |
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(01.01)with metallic elements other than the platinum group |
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(01.01.08)Silver Amalgam Alloys |
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01.01.08.00 Amalgam* Ag2Hg3 Unk Cubic |
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01.01.08.01 Moschellandsbergite Ag2Hg3 I m3m 4/m 3 2/m |
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01.01.08.02 Schachnerite Ag1.1Hg0.9 P 63/mmc 6/m 2/m 2/m |
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01.01.08.03 Paraschachnerite Ag3Hg2 C mcm 2/m 2/m 2/m |
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01.01.08.04 Luanheite Ag3Hg P 63/mmc 6/m 2/m 2/m |
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01.01.08.05 Eugenite Ag9Hg2 I 43m 4 3m |
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01.01.08.06 Weishanite (Au,Ag)3Hg2 P 63/mmc 6/m 2/m 2/m |
| Strunz Class: |
01.AD.15c 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides) |
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01.A - Metals and Intermetallic Alloys |
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01.AD -Mercury-amalgam family |
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01.AD.15c Eugenite Ag9Hg2 I 43m 4 3m |
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Other Eugenite Information
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| References: |
NAME( Dana8) PHYS. PROP.(37th List of New Min.,Min. Mag.,1996) |
| See Also: |
Links to other databases for Eugenite :
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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Print or Cut-and-Paste your Eugenite Specimen Label here :
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Eugenite
Ag9Hg2
Dana No: 01.01.08.05 Strunz No: 01.AD.15c
Locality:
Notes:
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