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Coloradoite Mineral Data
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General Coloradoite Information
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 Chemical Formula: |
HgTe |
| Composition: |
Molecular Weight = 328.19 gm |
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Mercury 61.12 % Hg |
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Tellurium 38.88 % Te |
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______ |
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100.00 % |
| Empirical Formula: |
HgTe |
| IMA Status: |
Valid Species (Pre-IMA) 1877 |
| Locality: |
Smuggler mine, Ballerat district, Boulder County, Colorado, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named after its locality. |
| Name Pronunciation: |
Coloradoite + Pronunciation  |
| Synonym: |
ICSD 60203 |
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PDF 32-665 |
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Coloradoite Image |
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Images:
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Coloradoite Crystallography
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| Cell Dimensions: |
a = 6.448, Z = 4; V = 268.09 Den(Calc)= 8.13 |
| Crystal System: |
Isometric - Hextetrahedral H-M Symbol (4 3m) Space Group: F43m |
| X Ray Diffraction: |
By Intensity(I/Io): 3.74(1), 2.29(0.9), 1.949(0.7), |
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Physical Properties of Coloradoite
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| Cleavage: |
None |
| Color: |
Grayish black, Black. |
| Density: |
8.07 |
| Diaphaneity: |
Opaque |
| Fracture: |
Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). |
| Habit: |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. |
| Habit: |
Massive - Uniformly indistinguishable crystals forming large masses. |
| Hardness: |
2.5 - Finger Nail |
| Luminescence: |
Non-fluorescent. |
| Luster: |
Metallic |
| Magnetism: |
Nonmagnetic |
| Streak: |
black |
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Optical Properties of Coloradoite
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| RL Anisotrophism: |
Moderate, dark brownish red to blue-gray. |
| RL Color: |
White with slight grayish brown tint, tarnishing to dull purple. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Coloradoite in Air
| λ |
R |
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∑ R(λ) |
| 400 nm |
36.40 |
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| 420 nm |
36.00 |
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| 440 nm |
35.60 |
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| 460 nm |
35.20 |
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| 480 nm |
35.00 |
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| 500 nm |
34.90 |
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| 520 nm |
35.00 |
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| 540 nm |
35.40 |
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| 560 nm |
36.20 |
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| 580 nm |
37.00 |
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| 600 nm |
37.30 |
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| 620 nm |
37.00 |
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| 640 nm |
36.10 |
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| 660 nm |
35.40 |
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| 680 nm |
34.70 |
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| 700 nm |
34.20 |
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Calculated Relative Intensity Colors of Coloradoite in Air
Relative
Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
210% |
240% |
250% |
| R |
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Calculated Properties of Coloradoite
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| Electron Density: |
Bulk Density (Electron Density)=6.54 gm/cc
note: Specific Gravity of Coloradoite =8.13 gm/cc.
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| Fermion Index: |
Fermion Index = 0.21
Boson Index = 0.79 |
| Photoelectric: |
PEColoradoite =1,223.67 barns/electron
U=PEColoradoite x rElectron Density=8,002.64 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Coloradoite is Not Radioactive |
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Coloradoite Classification
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| Dana Class: |
02.08.02.05 (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 Coloradoite Information
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| References: |
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
| See Also: |
Links to other databases for Coloradoite :
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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Print or Cut-and-Paste your Coloradoite Specimen Label here :
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Coloradoite
HgTe
Dana No: 02.08.02.05 Strunz No: 02.CB.05a
Locality:
Notes:
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