Moschellandsbergite Mineral Data

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General Moschellandsbergite Information

Chemical Formula:

Ag2Hg3

Composition:

Molecular Weight = 817.51 gm

Silver 26.39 % Ag

Mercury 73.61 % Hg

______

100.00 %

Empirical Formula:

Ag₂Hg₃

Environment:

Probably of low-temperature hydrothermal origin.

IMA Status:

Valid Species (Pre-IMA) 1938

Locality:

Landsberg (Moschellandsberg), near Obermoschel, Rheinland-Palatinate, Germany. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Name Pronunciation:

Moschellandsbergite + Pronunciation

Synonym:

ICSD 2720

PDF Nov-67

Moschellandsbergite Image

Images:

Moschellandsbergite

Comments: Gray metallic dendritic moschellandsbergite aggregate.
Location: Moschellandsberg, Rheinland-Pfalz, Germany. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Images:

Moschellandsbergite

Comments: Moschellandsbergite 4mm crystal on matrix.
Location: Carolina Mine, Moschellandsberg, Obermoschel, Rhineland-Palatinate, Germany. Scale: Specimen Size 6.0 x 4.8 x 4.0 cm.
© Rob Lavinsky

Moschellandsbergite Crystallography

Cell Dimensions:

a = 10.06, Z = 10; V = 1,018.11 Den(Calc)= 13.33

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): 2.36(1), 1.365(0.7), 1.236(0.6),

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Forms: ( 1 1 1) ( 1 1 2) ( 1 0 0) ( 0 1 1)

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Crystal Structure:

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Fairhurst C W , Cohen J B , Acta Crystallographica, Section B , 28 (1972) p.371-378, The crystal structure of two compounds found in dental amalgam: Ag2Hg3 and, Ag3Sn, Locality: synthetic

Physical Properties of Moschellandsbergite

Cleavage:

{011} Distinct, {001} Distinct

Color:

Silver white.

Density:

13.48 - 13.71, Average = 13.59

Diaphaneity:

Opaque

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Habit:

Euhedral Crystals - Occurs as well-formed crystals showing good external form.

Habit:

Massive - Granular - Common texture observed in granite and other igneous rock.

Hardness:

3.5 - Copper Penny

Luster:

Metallic

Streak:

metallic

Optical Properties of Moschellandsbergite

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Moschellandsbergite in Air**
λ	R	∑ R(λ)
400 nm	60.70
420 nm	62.80
440 nm	64.90
460 nm	66.90
480 nm	68.80
500 nm	70.70
520 nm	72.40
540 nm	74.10
560 nm	75.80
580 nm	77.30
600 nm	79.00
620 nm	80.50
640 nm	82.00
660 nm	83.40
680 nm	84.80
700 nm	86.10

**Calculated Relative Intensity Colors of Moschellandsbergite in Air**
Relative Intensity	0%	20%	40%	60%	80%	100%	120%	140%
R

Calculated Properties of Moschellandsbergite

Electron Density:

Bulk Density (Electron Density)=10.9 gm/cc
note: Specific Gravity of Moschellandsbergite =13.3 gm/cc.

Fermion Index:

Fermion Index = 0.22
Boson Index = 0.78

Photoelectric:

PE_{Moschellandsbergite}=1,348.65 barns/electron
U=PE_{Moschellandsbergite} x rElectron Density=14689.80 barns/cc.

Radioactivity:

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

Moschellandsbergite Classification

Dana Class:

01.01.08.01 (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.15d 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.15d Moschellandsbergite Ag2Hg3 I m3m 4/m 3 2/m

Other Moschellandsbergite Information

References:

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

See Also:

Links to other databases for Moschellandsbergite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
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 Moschellandsbergite Specimen Label here :

Moschellandsbergite

Ag2Hg3
Dana No: 01.01.08.01 Strunz No: 01.AD.15d
Locality:

Notes: