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Cupromakovickyite Mineral Data
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General Cupromakovickyite Information
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 Chemical Formula: |
Cu4AgPb2Bi9S18 |
| Composition: |
Molecular Weight = 6,445.41 gm |
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Copper 7.68 % Cu |
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Silver 4.02 % Ag |
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Bismuth 60.14 % Bi |
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Tellurium 0.77 % Te |
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Lead 9.48 % Pb |
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Selenium 0.31 % Se |
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Sulfur 17.60 % S |
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______ |
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100.00 % |
| Empirical Formula: |
Cu7.79Ag2.4Pb2.95Bi18.55S35.37Se0.25Te0.39 |
| Environment: |
Related to makovickyite; structure determined |
| IMA Status: |
Approved IMA 2002 (Dana # Added) |
| Locality: |
Scheelite deposit, Felben valley, Hohe Tauern Mts, Salzburg, Austria and Baita Bihor, Romania. Link to MinDat.org Location Data. |
| Name Origin: |
Named as the Cu-dominant analogue of makovickyite. |
| Synonym: |
IMA2002-058 |
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Cupromakovickyite Image |
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Images:
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Cupromakovickyite Hodrushite
Comments: Kup?cíkite (ku) and hodrushite (ho) partly replaced by bismuthinite derivative (bd56) with relict lamellae of low-Cu (4P) and cupromakovickyite [4P(Cu,Pb)]. (CanMin, 41:1165).
Location: Scheelite deposit of Felbertal, Austria.
Scale: Scale Bar 100 µm.
© Canadian Mineralogist |
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Images:
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Cupromakovickyite Makovickyite
Comments: SEM polished section detail of a grain of cupromakovickyite (dark gray) with locally exsolved lamellae (bright gray) of makovickyite. (CanMin, 46:503).
Location: Baita Bihor, Romania..
Scale: See Image.
© Canadian Mineralogist |
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Cupromakovickyite Crystallography
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| Axial Ratios: |
a:b:c =3.3378:1:7.4574 |
| Cell Dimensions: |
a = 13.405, b = 4.016, c = 29.949, Z = 1; beta = 99.989° V = 1,587.85 Den(Calc)= 6.74 |
| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m |
| X Ray Diffraction: |
By Intensity(I/Io): 3.478(1), 2.842(0.94), 3.646(0.57),3.486(0.41), 2.964(0.33), 3.345(0.33), 2.282(0.31), |
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Physical Properties of Cupromakovickyite
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| Color: |
Gray. |
| Diaphaneity: |
Opaque |
| Luster: |
Metallic |
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Optical Properties of Cupromakovickyite
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| RL Anisotrophism: |
Strong in oil and moderate in air. |
| RL Bireflectance: |
Moderate bireflectance in oil. |
| RL Color: |
Grayish white with no internal reflections. |
| RL Pleochroism: |
None. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Cupromakovickyite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
42.37 |
48.05 |
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| 420 nm |
42.42 |
48.19 |
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| 440 nm |
42.47 |
48.40 |
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| 460 nm |
42.26 |
48.51 |
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| 470 nm |
42.15 |
48.45 |
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| 480 nm |
41.95 |
48.29 |
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| 500 nm |
41.62 |
47.85 |
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| 520 nm |
41.35 |
47.50 |
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| 540 nm |
41.15 |
47.10 |
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| 546 nm |
41.02 |
46.93 |
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| 560 nm |
40.60 |
46.49 |
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| 580 nm |
40.36 |
46.02 |
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| 589 nm |
40.25 |
45.83 |
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| 600 nm |
40.13 |
45.74 |
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| 620 nm |
39.93 |
45.42 |
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| 640 nm |
39.82 |
45.23 |
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| 650 nm |
39.66 |
45.01 |
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| 660 nm |
39.53 |
44.80 |
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| 680 nm |
39.46 |
44.52 |
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| 700 nm |
39.38 |
44.44 |
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Calculated Relative Intensity Colors of Cupromakovickyite in Air
Relative
Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
210% |
220% |
| R1 |
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| R2 |
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Calculated Properties of Cupromakovickyite
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| Electron Density: |
Bulk Density (Electron Density)=5.68 gm/cc
note: Specific Gravity of Cupromakovickyite =6.74 gm/cc.
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| Fermion Index: |
Fermion Index = 0.02
Boson Index = 0.98 |
| Photoelectric: |
PECupromakovickyite =1,340.58 barns/electron
U=PECupromakovickyite x rElectron Density=7,611.92 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Cupromakovickyite is Not Radioactive |
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Cupromakovickyite Classification
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| Dana Class: |
03.08.10.07 (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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(03.08.10)Pavonite Group (Monoclinic: C/2c bismuth sulfosalts) |
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03.08.10.01 Pavonite (Ag,Cu)(Bi,Pb)3S5 C 2/c 2/m |
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03.08.10.02 Makovickyite Ag1.5Bi5.5S9 C 2/c 2/m |
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03.08.10.03 Benjaminite (Ag,Cu)3(Bi,Pb)7S12 C 2/c 2/m |
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03.08.10.04 Mummeite Cu0.58Ag3.11Pb1.10Bi6.65S13 C 2/c 2/m |
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03.08.10.05 Borodaevite Ag5(Bi,Sb)9S16 C 2/c 2/m |
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03.08.10.06 Cupropavonite AgPbCu2Bi5S10 C 2/c 2/m |
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03.08.10.07 Cupromakovickyite! Cu4AgPb2Bi9S18 C 2/m 2/m |
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03.08.10.08 Kudriavite! (Cd,Pb)Bi2S4 C 2/m 2/m |
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03.08.10.09 IMA2008-058! Ag5Bi13S22 C 2/m 2/m |
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03.08.10.10 IMA2005-036! Cu8Pb4Ag3Bi19S38 C 2/m 2/m |
| Strunz Class: |
02.JA.05d 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.05d Makovickyite Ag1.5Bi5.5S9 C 2/c 2/m |
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02.JA.05d Cupromakovickyite! Cu4AgPb2Bi9S18 C 2/m 2/m |
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Other Cupromakovickyite Information
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| References: |
NAME( AmMin, v93:1942) PHYS. PROP.(AmMin, v93:1942) OPTIC PROP.(AmMin, v93:1942) |
| See Also: |
Links to other databases for Cupromakovickyite :
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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Cupromakovickyite
Cu4AgPb2Bi9S18
Dana No: 03.08.10.07 Strunz No: 02.JA.05d
Locality:
Notes:
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