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Marrucciite Mineral Data
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General Marrucciite Information
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 Chemical Formula: |
Hg3Pb16Sb18S46 |
| Composition: |
Molecular Weight = 7,534.96 gm |
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Copper 0.18 % Cu |
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Mercury 7.93 % Hg |
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Antimony 29.80 % Sb |
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Lead 42.51 % Pb |
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Sulfur 19.52 % S |
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Chlorine 0.06 % Cl |
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______ |
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100.00 % |
| Empirical Formula: |
Cu0.21Hg2.98Pb15.46Sb18.44S45.87Cl0.13 |
| Environment: |
Found in the latest hydrothermal stage, within small veinlets crosscutting dolomitic lenses interstratified in Ba-Fe ore. Sulphosalt. |
| IMA Status: |
Approved IMA 2006 - (Dana # Added) |
| Locality: |
Buca della Vena deposit, Tuscany, Italy. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Angelo Marrucci (1956-2003), a mineral collector in recognition for his contributions to the mineralogy of Tuscany. |
| Synonym: |
Gelnicaite |
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Gelnicite |
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IMA2006-015 |
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Marrucciite Image |
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Images:
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Marrucciite
Comments: Black, acicular crystals of marrucciite embedded in dolomite marble..
Location: Buca della Vena Mine, Stazzema, Tuscany, Italy..
Scale: Picture size 4 mm.
© Thomas Witzke |
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Marrucciite Crystallography
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| Axial Ratios: |
a:b:c =11.7367:1:5.843 |
| Cell Dimensions: |
a = 48.32, b = 4.117, c = 24.056, Z = 2; beta = 118.84° V = 4,191.99 Den(Calc)= 5.97 |
| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m |
| X Ray Diffraction: |
By Intensity(I/Io): 2.994(1), 3.418(0.88), 3.48(0.64),2.056(0.52), 1.764(0.41), 2.322(0.41), 4.02(0.33), 3.106(0.31), |
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Physical Properties of Marrucciite
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| Diaphaneity: |
Opaque |
| Habit: |
Acicular - Occurs as needle-like crystals. |
| Luster: |
Metallic |
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Calculated Properties of Marrucciite
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| Electron Density: |
Bulk Density (Electron Density)=5.05 gm/cc
note: Specific Gravity of Marrucciite =5.97 gm/cc.
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| Fermion Index: |
Fermion Index = 0.11
Boson Index = 0.89 |
| Photoelectric: |
PEMarrucciite =1,008.51 barns/electron
U=PEMarrucciite x rElectron Density=5,096.00 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Marrucciite is Not Radioactive |
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Marrucciite Classification
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| Dana Class: |
03.08.16.02 (03)Sulfides - Sulfosalts |
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(03.08)where 1 < z/y <2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(03.08.16)Dana Group |
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03.08.16.01 Scainiite! Pb14Sb30S54O5 C 2/m 2/m |
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03.08.16.02 Marrucciite! Hg3Pb16Sb18S46 C 2/m 2/m |
| Strunz Class: |
02.JB.60 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.JB -Galena derivatives, with Pb |
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02.JB.60 Marrucciite! Hg3Pb16Sb18S46 C 2/m 2/m |
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Other Marrucciite Information
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| References: |
NAME( AmMin, v93:253) PHYS. PROP.(AmMin, v93:253) |
| See Also: |
Links to other databases for Marrucciite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info
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Print or Cut-and-Paste your Marrucciite Specimen Label here :
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Marrucciite
Hg3Pb16Sb18S46
Dana No: 03.08.16.02 Strunz No: 02.JB.60
Locality:
Notes:
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