Paraschachnerite Mineral Data

General Paraschachnerite Information

Chemical Formula:

Ag3Hg2

Composition:

Molecular Weight = 724.78 gm

Silver 44.65 % Ag

Mercury 55.35 % Hg

______

100.00 %

Empirical Formula:

Ag₃Hg₂

Environment:

Found in the oxidezed zone, formed by the alteration of moschellandsbergite.

IMA Status:

Approved IMA 1972

Locality:

Landsberg, near Obermoschel, Germany. Link to MinDat.org Location Data.

Name Origin:

Named for its relationship to schachnerite.

Name Pronunciation:

Paraschachnerite + Pronunciation

Paraschachnerite Crystallography

Axial Ratios:

a:b:c =0.5771:1:0.9415

Cell Dimensions:

a = 2.961, b = 5.13, c = 4.83, Z = 0.8; V = 73.37 Den(Calc)= 13.12

Crystal System:

Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: C mcm

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

By Intensity(I/I_o): 2.267(1), 1.263(0.6), 2.404(0.6),

Physical Properties of Paraschachnerite

Color:

Tin white.

Density:

12.98

Diaphaneity:

Opaque

Habit:

Twinning Common - Crystals are usually twinned.

Hardness:

4 - Fluorite

Luster:

Metallic

Streak:

metallic

Optical Properties of Paraschachnerite

RL Anisotrophism:

Distinct.

RL Color:

Creamy white.

RL Pleochroism:

Brownish rose-white to creamy white.

Calculated Properties of Paraschachnerite

Electron Density:

Bulk Density (Electron Density)=10.9 gm/cc
note: Specific Gravity of Paraschachnerite =13.1 gm/cc.

Fermion Index:

Fermion Index = 0.16
Boson Index = 0.84

Photoelectric:

PE_{Paraschachnerite}=1,065.73 barns/electron
U=PE_{Paraschachnerite} x rElectron Density=11613.67 barns/cc.

Radioactivity:

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

Paraschachnerite Classification

Dana Class:

01.01.08.03 (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.15a 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.15a Paraschachnerite Ag3Hg2 C mcm 2/m 2/m 2/m

01.AD.15a Schachnerite Ag1.1Hg0.9 P 6₃/mmc 6/m 2/m 2/m

Other Paraschachnerite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Paraschachnerite :
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 Paraschachnerite Specimen Label here :

Paraschachnerite

Ag3Hg2
Dana No: 01.01.08.03 Strunz No: 01.AD.15a
Locality:

Notes:

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