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Tiemannite Mineral Data
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General Tiemannite Information
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 Chemical Formula: |
HgSe |
| Composition: |
Molecular Weight = 279.55 gm |
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Mercury 71.75 % Hg |
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Selenium 28.25 % Se |
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______ |
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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 |
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PDF 8-469 |
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Tiemannite Image |
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Images:
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Images:
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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 |
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Images:
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Tischendorfite Tiemannite 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 |
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Tiemannite Crystallography
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| Cell Dimensions: |
a = 6.084, Z = 4; V = 225.20 Den(Calc)= 8.24 |
| Crystal System: |
Isometric - Hextetrahedral H-M Symbol (4 3m) Space Group: F43m |
| X Ray Diffraction: |
By Intensity(I/Io): 3.51(1), 2.151(0.5), 1.835(0.3), |
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Physical Properties of Tiemannite
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| 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 |
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Optical Properties of Tiemannite
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| RL Color: |
Grayish white. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Tiemannite in Air
| λ |
R |
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∑ R(λ) |
| 400 nm |
33.40 |
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| 420 nm |
33.60 |
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| 440 nm |
33.80 |
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| 460 nm |
33.20 |
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| 480 nm |
32.30 |
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| 500 nm |
31.30 |
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| 520 nm |
30.50 |
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| 540 nm |
29.80 |
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| 560 nm |
29.30 |
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| 580 nm |
29.00 |
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| 600 nm |
28.70 |
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| 620 nm |
28.50 |
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| 640 nm |
28.30 |
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| 660 nm |
28.20 |
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| 680 nm |
28.00 |
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| 700 nm |
28.00 |
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Calculated Relative Intensity Colors of Tiemannite in Air
Relative
Intensity |
0% |
40% |
80% |
100% |
120% |
160% |
200% |
240% |
280% |
310% |
| R |
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Calculated Properties of Tiemannite
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| Electron Density: |
Bulk Density (Electron Density)=6.72 gm/cc
note: Specific Gravity of Tiemannite =8.24 gm/cc.
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| Fermion Index: |
Fermion Index = 0.23
Boson Index = 0.77 |
| Photoelectric: |
PETiemannite =1,269.54 barns/electron
U=PETiemannite x rElectron Density=8,531.97 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tiemannite is Not Radioactive |
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Tiemannite Classification
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| Dana Class: |
02.08.02.04 (02)Sulfides - Including Selenides and Tellurides |
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(02.08)where Am Bn Xp, with (m+n):p=1:1 |
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(02.08.02)Sphalerite Group (Isometric: F4-3m) |
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02.08.02.01 Sphalerite (Zn,Fe)S F43m 4 3m |
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02.08.02.02 Stilleite ZnSe F43m 4 3m |
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02.08.02.03 Metacinnabar HgS F43m 4 3m |
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02.08.02.04 Tiemannite HgSe F43m 4 3m |
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02.08.02.05 Coloradoite HgTe F43m 4 3m |
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02.08.02.06 Hawleyite CdS F43m 4 3m |
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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 |
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02.C - Metal Sulfides, M:S = 1:1 (and similar) |
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02.CB -With Zn, Fe, Cu, Ag, Au, etc |
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02.CB.05a Hawleyite CdS F43m 4 3m |
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02.CB.05a Coloradoite HgTe F43m 4 3m |
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02.CB.05a Metacinnabar HgS F43m 4 3m |
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02.CB.05a Sphalerite (Zn,Fe)S F43m 4 3m |
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02.CB.05a Tiemannite HgSe F43m 4 3m |
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02.CB.05a Stilleite ZnSe F43m 4 3m |
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02.CB.05a Rudashevskyite! (Fe,Zn)S F43m 4 3m |
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Other Tiemannite Information
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| 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
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Tiemannite
HgSe
Dana No: 02.08.02.04 Strunz No: 02.CB.05a
Locality:
Notes:
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