Luanheite Mineral Data

General Luanheite Information

Chemical Formula:

Ag3Hg

Composition:

Molecular Weight = 524.19 gm

Silver 61.73 % Ag

Mercury 38.27 % Hg

______

100.00 %

Empirical Formula:

Ag₃Hg

Environment:

In a placer containing gold and other elements.

IMA Status:

Approved IMA 1984

Locality:

Luanhe River, Chengde Co.,Hebei Province, China. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Name Pronunciation:

Luanheite + Pronunciation

Luanheite Image

Images:

Luanheite

Comments: Inclusions of luanheite, in tellurium, in quartz.
Location: Mina Bambolla, Moctezuma, Sonora, Mexico. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Luanheite Crystallography

Axial Ratios:

a:c = 1:1.66111

Cell Dimensions:

a = 6.61, c = 10.98, Z = 6; V = 415.47 Den(Calc)= 12.57

Crystal System:

Hexagonal - Dihexagonal DipyramidalH-M Symbol (6/m 2/m 2/m) Space Group: P 6₃/mmc

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

By Intensity(I/I_o): 1.495(1), 1.204(0.9), 2.83(0.7),

Physical Properties of Luanheite

Cleavage:

None

Color:

Gray white, Black.

Density:

12.5

Diaphaneity:

Opaque

Fracture:

Malleable - Deforms rather than breaking apart with a hammer.

Habit:

Granular - Generally occurs as anhedral to subhedral crystals in matrix.

Habit:

Tabular - Form dimensions are thin in one direction.

Hardness:

2.5 - Finger Nail

Luster:

Metallic

Streak:

grayish black

Optical Properties of Luanheite

RL Anisotrophism:

Very weak.

RL Color:

Milky white.

RL Pleochroism:

Pinkish gray to milky white.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Luanheite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
546 nm	62.40	70.50
589 nm	64.90	74.00

**Calculated Relative Intensity Colors of Luanheite in Air**
Relative Intensity	0%	20%	40%	60%	80%	100%	120%	140%
R₁
R₂

Calculated Properties of Luanheite

Electron Density:

Bulk Density (Electron Density)=10.6 gm/cc
note: Specific Gravity of Luanheite =12.6 gm/cc.

Fermion Index:

Fermion Index = 0.11
Boson Index = 0.89

Photoelectric:

PE_Luanheite= 809.18 barns/electron
U=PE_Luanheite x rElectron Density=8,576.53 barns/cc.

Radioactivity:

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

Luanheite Classification

Dana Class:

01.01.08.04 (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.15b 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.15b Luanheite Ag3Hg P 6₃/mmc 6/m 2/m 2/m

Other Luanheite Information

References:

NAME( AntBidBlaNic1) PHYS. PROP.(Am.Min.,Vol.73,p192,1988) OPTIC PROP.(AntBidBlaNic1)

See Also:

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

Luanheite

Ag3Hg
Dana No: 01.01.08.04 Strunz No: 01.AD.15b
Locality:

Notes: