|
|
Eugenite Mineral Data
|
|
|
General Eugenite Information
|
Chemical Formula: |
Ag9Hg2 |
Composition: |
Molecular Weight = 1,371.99 gm |
|
Silver 70.76 % Ag |
|
Mercury 29.24 % Hg |
|
______ |
|
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 |
|
Eugenite Image |
Images:
|
|
Images:
|
|
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 |
|
Eugenite Crystallography
|
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), |
|
Physical Properties of Eugenite
|
Color: |
Silver white. |
Density: |
10.75 |
Diaphaneity: |
Opaque |
Hardness: |
2.5-3 - Finger Nail-Calcite |
Luster: |
Metallic |
Streak: |
metallic |
|
Calculated Properties of Eugenite
|
Electron Density: |
Bulk Density (Electron Density)=7.70 gm/cc note: Specific Gravity of Eugenite =9.06 gm/cc. |
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. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Eugenite is Not Radioactive |
|
Eugenite Classification
|
Dana Class: |
01.01.08.05 (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.15c 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.15c Eugenite Ag9Hg2 I 43m 4 3m |
|
Other Eugenite Information
|
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
Search for Eugenite using:
[AOL]
[Bing]
[Dog Pile]
[GeoScienceWorld]
[HotBot]
[Ixquick]
[Lycos]
[MAMMA]
[Scirus]
[Teoma]
[WebCrawler]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Eugenite :
Ask about Eugenite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in
Espa�ol
Print or Cut-and-Paste your Eugenite Specimen Label here :
Eugenite
Ag9Hg2
Dana No: 01.01.08.05 Strunz No: 01.AD.15c
Locality:
Notes:
|
|
|
|
|
|
Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.