Tiemannite Mineral Data

General Tiemannite Information

Chemical Formula:

HgSe

Composition:

Molecular Weight = 279.55 gm

Mercury 71.75 % Hg

Selenium 28.25 % Se

______

100.00 %

Empirical Formula:

HgSe

Environment:

Found in hydrothermal veins, usually with other selenides and calcite.

IMA Status:

Valid Species (Pre-IMA) 1855

Locality:

Marysville, Piute Co., Utah. Link to MinDat.org Location Data.

Name Origin:

Named after its discoverer, C. W. F. Tiemann (1848-1899).

Name Pronunciation:

Tiemannite + Pronunciation

Synonym:

ICSD 24322

PDF 8-469

Tiemannite Image

Images:

Tiemannite

Comments: Dull black tiemannite masses on limestone.
Location: Marysvale, Piute County, Utah. USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Images:

Tiemannite

Comments: Dull steel-gray, tetragonal crystals of tiemannite to 0.5mm with modifications and striations, slight purple tinge.
Location: Rio Blanco, Pinal De Arvole, Atriagu, Queretare, Mexico. Scale: Picture size 2 mm.
© Tom Loomis / Dakota Matrix

Images:

Tiemannite Tischendorfite Chrisstanleyite

Comments: Polished section (PPL) showing tischendorfite (T, cream), clausthalite (Cl, off-white), tiemannite (Tie, gray), ankerite (black) and chrisstanleyite (C, greenish buff to pale brown).
Location: Eskaborner Stollen (Eskeborn Adit) at Tilkerode, Harz, Mountains, Germany. (CanMin v40:739). Scale: Picture Size 275 µm.
© Canadian Mineralogist

Tiemannite Crystallography

Cell Dimensions:

a = 6.084, Z = 4; V = 225.20 Den(Calc)= 8.24

Crystal System:

Isometric - HextetrahedralH-M Symbol (4 3m) Space Group: F43m

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

By Intensity(I/I_o): 3.51(1), 2.151(0.5), 1.835(0.3),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

Earley J W , American Mineralogist , 35 (1950) p.337-364, Description and syntheses of the selenide minerals

View Additional jPOWD Structure files for Tiemannite
[1]

Physical Properties of Tiemannite

Cleavage:

None

Color:

Gray, Reddish brown, Black.

Density:

8.19 - 8.47, Average = 8.33

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:

2.5 - Finger Nail

Luminescence:

Non-fluorescent.

Luster:

Metallic

Magnetism:

Nonmagnetic

Streak:

grayish black

Optical Properties of Tiemannite

RL Color:

Grayish white.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Tiemannite in Air**
λ	R	∑ R(λ)
400 nm	33.40
420 nm	33.60
440 nm	33.80
460 nm	33.20
480 nm	32.30
500 nm	31.30
520 nm	30.50
540 nm	29.80
560 nm	29.30
580 nm	29.00
600 nm	28.70
620 nm	28.50
640 nm	28.30
660 nm	28.20
680 nm	28.00
700 nm	28.00

**Calculated Relative Intensity Colors of Tiemannite in Air**
Relative Intensity	0%	40%	80%	100%	120%	160%	200%	240%	280%	310%
R

Calculated Properties of Tiemannite

Electron Density:

Bulk Density (Electron Density)=6.72 gm/cc
note: Specific Gravity of Tiemannite =8.24 gm/cc.

Fermion Index:

Fermion Index = 0.23
Boson Index = 0.77

Photoelectric:

PE_Tiemannite=1,269.54 barns/electron
U=PE_Tiemannite x rElectron Density=8,531.97 barns/cc.

Radioactivity:

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

Tiemannite Classification

Dana Class:

02.08.02.04 (02)Sulfides - Including Selenides and Tellurides

(02.08)where Am Bn Xp, with (m+n):p=1:1

(02.08.02)Sphalerite Group (Isometric: F4-3m)

02.08.02.01 Sphalerite (Zn,Fe)S F43m 4 3m

02.08.02.02 Stilleite ZnSe F43m 4 3m

02.08.02.03 Metacinnabar HgS F43m 4 3m

02.08.02.04 Tiemannite HgSe F43m 4 3m

02.08.02.05 Coloradoite HgTe F43m 4 3m

02.08.02.06 Hawleyite CdS F43m 4 3m

02.08.02.07 Rudashevskyite! (Fe,Zn)S F43m 4 3m

Strunz Class:

02.CB.05a 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.C - Metal Sulfides, M:S = 1:1 (and similar)

02.CB -With Zn, Fe, Cu, Ag, Au, etc

02.CB.05a Hawleyite CdS F43m 4 3m

02.CB.05a Coloradoite HgTe F43m 4 3m

02.CB.05a Metacinnabar HgS F43m 4 3m

02.CB.05a Sphalerite (Zn,Fe)S F43m 4 3m

02.CB.05a Tiemannite HgSe F43m 4 3m

02.CB.05a Stilleite ZnSe F43m 4 3m

02.CB.05a Rudashevskyite! (Fe,Zn)S F43m 4 3m

Other Tiemannite Information

References:

NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Tiemannite :
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
15 - WWW-MINCRYST

Search for Tiemannite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Tiemannite :

A Bijoux Google Search for Tiemannite
Adam's Minerals Google Search for Tiemannite
Cape Minerals Google Search for Tiemannite
Dakota Matrix Minerals Google Search for Tiemannite
Excalibur Mineral Corp. Google Search for Tiemannite
Exceptional Minerals Google Search for Tiemannite
John Betts Fine Minerals Search for Tiemannite
McDougall Minerals Google Search for Tiemannite
Mineral News Website Link
Rock and Mineral Shows Google Search for Tiemannite
Weinrich Minerals, Inc. Google Search for Tiemannite

Ask about Tiemannite 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 Español

Print or Cut-and-Paste your Tiemannite Specimen Label here :

Tiemannite

HgSe
Dana No: 02.08.02.04 Strunz No: 02.CB.05a
Locality:

Notes: