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Imiterite Mineral Data
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General Imiterite Information
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 Chemical Formula: |
Ag2HgS2 |
| Composition: |
Molecular Weight = 480.46 gm |
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Silver 44.90 % Ag |
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Mercury 41.75 % Hg |
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Sulfur 13.35 % S |
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______ |
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100.00 % |
| Empirical Formula: |
Ag2HgS2 |
| Environment: |
In a pyritic deposit. |
| IMA Status: |
Approved IMA 1985 |
| Locality: |
In the Imiter mine, Anti-Atlas Mountains, Morocco. Link to MinDat.org Location Data. |
| Name Origin: |
For the Imiter mine locality in Morocco. |
| Name Pronunciation: |
Imiterite + Pronunciation  |
| Synonym: |
ICSD 201713 |
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PDF 39-328 |
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Imiterite Image |
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Images:
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Images:
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Imiterite
Comments: Silvery needle-like wire crystals of imiterite with rounded tips to 0.5 to .75mm in vuggy calcite.
Location: Imiter mine, Anti-Atlas Mts., Dades Region, Morocco.
Scale: Picture size 0.5 cm.
© Tom Loomis / Dakota Matrix |
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Imiterite Crystallography
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| Axial Ratios: |
a:b:c =0.5045:1:0.8219 |
| Cell Dimensions: |
a = 4.039, b = 8.0052, c = 6.58, Z = 2; beta = 107.11° V = 203.34 Den(Calc)= 7.85 |
| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/c |
| X Ray Diffraction: |
By Intensity(I/Io): 2.746(1), 2.768(1), 2.461(0.8), |
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Physical Properties of Imiterite
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| Color: |
Light gray, Black, Silver gray. |
| Density: |
7.85 |
| Diaphaneity: |
Opaque |
| Hardness: |
2.5-3 - Finger Nail-Calcite |
| Luster: |
Metallic |
| Streak: |
dark gray |
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Optical Properties of Imiterite
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| RL Anisotrophism: |
Strong, from blue to reddish brown. |
| RL Color: |
White-gray. |
| RL Pleochroism: |
Bluish to pinkish. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Imiterite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 420 nm |
29.80 |
33.80 |
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| 440 nm |
33.40 |
38.30 |
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| 460 nm |
32.10 |
36.40 |
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| 480 nm |
31.30 |
34.80 |
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| 500 nm |
30.60 |
33.70 |
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| 520 nm |
29.90 |
32.80 |
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| 540 nm |
29.50 |
32.10 |
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| 560 nm |
29.20 |
31.50 |
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| 580 nm |
28.90 |
31.10 |
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| 600 nm |
28.80 |
30.80 |
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| 620 nm |
28.60 |
30.50 |
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| 640 nm |
28.50 |
30.30 |
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| 660 nm |
28.20 |
29.90 |
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| 680 nm |
27.90 |
29.70 |
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| 700 nm |
27.50 |
29.40 |
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Calculated Relative Intensity Colors of Imiterite in Air
Relative
Intensity |
0% |
40% |
80% |
100% |
120% |
160% |
200% |
240% |
280% |
310% |
| R1 |
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| R2 |
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Calculated Properties of Imiterite
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| Electron Density: |
Bulk Density (Electron Density)=6.73 gm/cc
note: Specific Gravity of Imiterite =7.85 gm/cc.
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| Fermion Index: |
Fermion Index = 0.12
Boson Index = 0.88 |
| Photoelectric: |
PEImiterite = 809.28 barns/electron
U=PEImiterite x rElectron Density=5,447.64 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Imiterite is Not Radioactive |
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Imiterite Classification
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| Dana Class: |
02.05.08.01 (02)Sulfides - Including Selenides and Tellurides |
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(02.05)where Am Bn Xp, with (m+n):p=3:2 |
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(02.05.08)Dana Group |
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02.05.08.01 Imiterite Ag2HgS2 P 21/c 2/m |
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02.05.08.02 Brodtkorbite! Cu2HgSe2 P 21/n 2/m |
| Strunz Class: |
02.BD.05 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.B - Metal Sulfides, M:S > 1:1 (mainly 2:1) |
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02.BD -With Hg, Tl |
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02.BD.05 Imiterite Ag2HgS2 P 21/c 2/m |
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Other Imiterite 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 Imiterite :
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 Imiterite Specimen Label here :
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Imiterite
Ag2HgS2
Dana No: 02.05.08.01 Strunz No: 02.BD.05
Locality:
Notes:
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