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Grumiplucite Mineral Data
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General Grumiplucite Information
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 Chemical Formula: |
HgBi2S4 |
| Composition: |
Molecular Weight = 746.81 gm |
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Mercury 26.86 % Hg |
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Bismuth 55.97 % Bi |
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Sulfur 17.17 % S |
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______ |
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100.00 % |
| Empirical Formula: |
HgBi2S4 |
| Environment: |
Cavities in quartz-carbonate veins at the mine. |
| IMA Status: |
Approved IMA 1998 (Dana # Added) |
| Locality: |
Found in the Levigliani mercury mine in the Apuan Alps, Tuscany, Italy. Link to MinDat.org Location Data. |
| Name Origin: |
Named after the amateur mineralogical organization Gruppo Mineralogico e Paleontologico Lucchese, members of which provided the specimens for study. |
| Name Pronunciation: |
Grumiplucite + Pronunciation  |
| Synonym: |
ICSD 14189 |
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IMA1997-021 |
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PDF 51-1552 |
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Grumiplucite Image |
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Images:
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Grumiplucite Crystallography
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| Axial Ratios: |
a:b:c =3.4946:1:3.446 |
| Cell Dimensions: |
a = 14.164, b = 4.053, c = 13.967, Z = 4; beta = 118.283° V = 706.08 Den(Calc)= 7.02 |
| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m |
| X Ray Diffraction: |
By Intensity(I/Io): 3.05(1), 2.914(0.8), 2.865(0.5),3.86(0.5), 3.55(0.5), |
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Physical Properties of Grumiplucite
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| Cleavage: |
{001} Perfect |
| Color: |
Grayish black. |
| Diaphaneity: |
Opaque |
| Habit: |
Microscopic Crystals - Crystals visible only with microscopes. |
| Habit: |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
| Luster: |
Metallic |
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Optical Properties of Grumiplucite
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| RL Anisotrophism: |
Distinct. |
| RL Bireflectance: |
Low. |
| RL Color: |
Creamy white. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Grumiplucite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 470 nm |
35.70 |
37.80 |
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| 546 nm |
35.40 |
37.50 |
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| 589 nm |
34.90 |
37.00 |
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| 650 nm |
33.90 |
35.80 |
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Standardized Intensity (100%) Reflection Spectra of Grumiplucite in Oil
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 470 nm |
23.20 |
25.00 |
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| 546 nm |
23.00 |
25.00 |
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| 589 nm |
22.00 |
24.00 |
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| 650 nm |
20.40 |
22.70 |
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Calculated Relative Intensity Colors of Grumiplucite in Air
Relative
Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
210% |
240% |
260% |
| R1 |
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| R2 |
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Calculated Relative Intensity Colors of Grumiplucite in Oil
Relative
Intensity |
0% |
50% |
100% |
150% |
200% |
250% |
300% |
350% |
400% |
410% |
| R1 |
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| R2 |
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Calculated Properties of Grumiplucite
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| Electron Density: |
Bulk Density (Electron Density)=5.83 gm/cc
note: Specific Gravity of Grumiplucite =7.02 gm/cc.
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| Fermion Index: |
Fermion Index = 0.08
Boson Index = 0.92 |
| Photoelectric: |
PEGrumiplucite =1,543.88 barns/electron
U=PEGrumiplucite x rElectron Density=8,997.68 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Grumiplucite is Not Radioactive |
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Grumiplucite Classification
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| Dana Class: |
03.07.11.02 (03)Sulfides - Sulfosalts |
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(03.07)where z/y = 2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(03.07.11)Dana Group |
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03.07.11.01 Livingstonite HgSb4S8 A2/a 2/m |
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03.07.11.02 Grumiplucite! HgBi2S4 C 2/m 2/m |
| Strunz Class: |
02.JA.05b 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.J - Sulfosalts of PbS Archetype |
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02.JA -Galena derivatives with little or no Pb |
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02.JA.05b Grumiplucite! HgBi2S4 C 2/m 2/m |
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Other Grumiplucite Information
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| References: |
NAME( CanMin, 8/99) PHYS. PROP.(AmMin, V84, p1465) OPTIC PROP.(AmMin, V84, p1465) |
| See Also: |
Links to other databases for Grumiplucite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
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Print or Cut-and-Paste your Grumiplucite Specimen Label here :
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Grumiplucite
HgBi2S4
Dana No: 03.07.11.02 Strunz No: 02.JA.05b
Locality:
Notes:
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