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Uchucchacuaite Mineral Data
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General Uchucchacuaite Information
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 Chemical Formula: |
AgPb3MnSb5S12 |
| Composition: |
Molecular Weight = 1,777.95 gm |
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Manganese 3.09 % Mn |
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Silver 6.07 % Ag |
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Antimony 34.24 % Sb |
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Lead 34.96 % Pb |
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Sulfur 21.64 % S |
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______ |
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100.00 % |
| Empirical Formula: |
AgPb3Mn3+Sb5S12 |
| Environment: |
In a telescoped hydrothermal deposit. |
| IMA Status: |
Approved IMA 1984 |
| Locality: |
Uchuc-Chacua deposit, Cajatambo Province, Peru. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Name Pronunciation: |
Uchucchacuaite + Pronunciation  |
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Uchucchacuaite Image |
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Images:
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Uchucchacuaite Crystallography
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| Axial Ratios: |
a:b:c =0.6557:1:0.2267 |
| Cell Dimensions: |
a = 12.67, b = 19.32, c = 4.38, Z = 2; V = 1,072.16 Den(Calc)= 5.51 |
| Crystal System: |
Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P mmm |
| X Ray Diffraction: |
By Intensity(I/Io): 3.3(1), 2.9(0.8), 3.8(0.3), |
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Physical Properties of Uchucchacuaite
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| Color: |
Lead gray. |
| Density: |
5.16 |
| Diaphaneity: |
Opaque |
| Habit: |
Anhedral Grains - Granular minerals without the expression of crystal shapes |
| Habit: |
Twinning Common - Crystals are usually twinned. |
| Hardness: |
3.5 - Copper Penny |
| Luster: |
Metallic |
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Optical Properties of Uchucchacuaite
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| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Uchucchacuaite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
36.20 |
44.30 |
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| 420 nm |
36.30 |
44.20 |
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| 440 nm |
35.80 |
44.20 |
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| 460 nm |
35.20 |
43.80 |
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| 480 nm |
35.00 |
43.90 |
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| 500 nm |
34.70 |
43.70 |
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| 520 nm |
34.50 |
43.40 |
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| 540 nm |
34.10 |
43.30 |
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| 560 nm |
33.80 |
43.00 |
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| 580 nm |
33.50 |
42.60 |
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| 600 nm |
33.20 |
42.40 |
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| 620 nm |
33.00 |
42.00 |
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| 640 nm |
32.70 |
41.80 |
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| 660 nm |
32.30 |
41.20 |
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| 680 nm |
31.80 |
40.60 |
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| 700 nm |
31.20 |
39.90 |
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Calculated Relative Intensity Colors of Uchucchacuaite in Air
Relative
Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
210% |
240% |
270% |
| R1 |
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| R2 |
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Calculated Properties of Uchucchacuaite
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| Electron Density: |
Bulk Density (Electron Density)=4.74 gm/cc
note: Specific Gravity of Uchucchacuaite =5.51 gm/cc.
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| Fermion Index: |
Fermion Index = 0.07
Boson Index = 0.93 |
| Photoelectric: |
PEUchucchacuaite = 758.93 barns/electron
U=PEUchucchacuaite x rElectron Density=3,598.52 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Uchucchacuaite is Not Radioactive |
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Uchucchacuaite Classification
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| Dana Class: |
03.04.15.05 (03)Sulfides - Sulfosalts |
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(03.04)where z/y > 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(03.04.15)Lillianite Group (Orthorhombic, AmBnS6 where A=Pb, Ag, Mn and B=Sb, Bi) |
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03.04.15.01 Lillianite Pb3Bi2S6 Bbmm 2/m 2/m 2/m |
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03.04.15.02 Bursaite? Pb5Bi4S11 Bbmm 2/m 2/m 2/m |
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03.04.15.03 Gustavite PbAgBi3S6(?) Bbmm 2/m 2/m 2/m |
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03.04.15.04 Andorite PbAgSb3S6 Pmma 2/m 2/m 2/m |
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03.04.15.05 Uchucchacuaite AgPb3MnSb5S12 P mmm 2/m 2/m 2/m |
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03.04.15.06 Ramdohrite Ag3Pb6Sb11S24 P 2/n 2/m |
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03.04.15.07 Roshchinite Ag19Pb10Sb51S96orPb(Ag,Cu)2(Sb,As)5S10 Pmna 2/m 2/m 2/m |
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03.04.15.08 Fizelyite Pb14Ag5Sb21S48(?) P 21/n 2/m |
| Strunz Class: |
02.JB.40a 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.40a Fizelyite Pb14Ag5Sb21S48(?) P 21/n 2/m |
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02.JB.40a Andorite PbAgSb3S6 Pmma 2/m 2/m 2/m |
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02.JB.40a Bursaite? Pb5Bi4S11 Bbmm 2/m 2/m 2/m |
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02.JB.40a Gustavite PbAgBi3S6(?) Bbmm 2/m 2/m 2/m |
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02.JB.40a Lillianite Pb3Bi2S6 Bbmm 2/m 2/m 2/m |
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02.JB.40a Roshchinite Ag19Pb10Sb51S96orPb(Ag,Cu)2(Sb,As)5S10 Pmna 2/m 2/m 2/m |
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02.JB.40a Uchucchacuaite AgPb3MnSb5S12 P mmm 2/m 2/m 2/m |
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02.JB.40a Ramdohrite Ag3Pb6Sb11S24 P 2/n 2/m |
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02.JB.40a Xilingolite Pb3Bi2S6 C 2/m 2/m |
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02.JB.40a Treasurite Ag7Pb6Bi15S32 B2/m 2/m |
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02.JB.40a Vikingite Ag5Pb8Bi13S30 C 2/m 2/m |
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Other Uchucchacuaite Information
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| References: |
NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic1) |
| See Also: |
Links to other databases for Uchucchacuaite :
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
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Print or Cut-and-Paste your Uchucchacuaite Specimen Label here :
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Uchucchacuaite
AgPb3MnSb5S12
Dana No: 03.04.15.05 Strunz No: 02.JB.40a
Locality:
Notes:
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