| |
 |
Cuprobismutite Mineral Data
|
|
|
General Cuprobismutite Information
|
 Chemical Formula: |
Cu10Bi12S23 |
| Composition: |
Molecular Weight = 3,880.74 gm |
| |
Copper 16.37 % Cu |
| |
Bismuth 64.62 % Bi |
| |
Sulfur 19.00 % S |
| |
______ |
| |
100.00 % |
| Empirical Formula: |
Cu10Bi12S23 |
| Environment: |
In quartz veins with other sulfides. |
| IMA Status: |
Valid Species (Pre-IMA) 1884 |
| Locality: |
In the USA, at the Missouri mine, Hall's Calley, Park Co., and the Silver Cliff, Custer Co., Colorado. Link to MinDat.org Location Data. |
| Name Origin: |
For the composition. |
| Synonym: |
ICSD 38364 |
| |
PDF 29-536 |
| |
Cuprobismutite Image |
|
Images:
|
|
Kupcikite Cuprobismutite
Comments: Backscattered electron image of kupcÃkite (ku) replacing cuprobismutite (cu); both phases are in turn replaced by bsimuthinite derivative (bd79-92).
Location: Felbertal, Austria.
Scale: Scale bar 100 µ-m.
© Canadian Mineralogist |
|
Cuprobismutite Crystallography
|
| Axial Ratios: |
a:b:c =4.491:1:3.8778 |
| Cell Dimensions: |
a = 17.65, b = 3.93, c = 15.24, Z = 1; beta = 100.5° V = 1,039.41 Den(Calc)= 6.20 |
| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m |
| X Ray Diffraction: |
By Intensity(I/Io): 3.07(1), 2.73(0.6), 3.25(0.4), |
| |
Physical Properties of Cuprobismutite
|
| Color: |
Blue black, Gray, Dark blue black. |
| Density: |
6.47 |
| Diaphaneity: |
Opaque |
| Luster: |
Metallic |
| Streak: |
black |
| |
Optical Properties of Cuprobismutite
|
| RL Anisotrophism: |
Distinct. |
| RL Color: |
Gray tarnishing bluish. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Cuprobismutite in Air
| λ |
R1 |
R2 |
 |
∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
31.50 |
38.70 |
|
|
|
| 420 nm |
32.50 |
39.20 |
|
| 440 nm |
33.50 |
39.70 |
|
| 460 nm |
34.40 |
40.10 |
|
| 480 nm |
35.20 |
40.50 |
|
| 500 nm |
35.80 |
40.80 |
|
| 520 nm |
36.30 |
41.10 |
|
| 540 nm |
36.80 |
41.30 |
|
| 560 nm |
37.10 |
41.50 |
|
| 580 nm |
37.30 |
41.80 |
|
| 600 nm |
37.40 |
42.00 |
|
| 620 nm |
37.40 |
42.20 |
|
| 640 nm |
37.00 |
42.30 |
|
| 660 nm |
36.50 |
42.20 |
|
| 680 nm |
35.70 |
42.00 |
|
| 700 nm |
34.80 |
41.50 |
|
Calculated Relative Intensity Colors of Cuprobismutite in Air
Relative
Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
210% |
240% |
260% |
| R1 |
|
|
|
|
|
|
|
|
|
|
|
| R2 |
|
|
|
|
|
|
|
|
|
|
|
|
| |
Calculated Properties of Cuprobismutite
|
| Electron Density: |
Bulk Density (Electron Density)=5.28 gm/cc
note: Specific Gravity of Cuprobismutite =6.20 gm/cc.
|
| Fermion Index: |
Fermion Index = 0.001425988
Boson Index = 0.998574012 |
| Photoelectric: |
PECuprobismutite =1,229.22 barns/electron
U=PECuprobismutite x rElectron Density=6,496.40 barns/cc.
|
| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Cuprobismutite is Not Radioactive |
| |
Cuprobismutite Classification
|
| Dana Class: |
03.08.02.01 (03)Sulfides - Sulfosalts |
| |
(03.08)where 1 < z/y <2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
| |
(03.08.02)Cuprobismutite Series |
| |
03.08.02.01 Cuprobismutite Cu10Bi12S23 C 2/m 2/m |
| |
03.08.02.02 Kupcikite! Cu3.4Fe0.6Bi5S10 C 2/m 2/m |
| Strunz Class: |
02.JA.10a 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
| |
02.J - Sulfosalts of PbS Archetype |
| |
02.JA -Galena derivatives with little or no Pb |
| |
02.JA.10a Cuprobismutite Cu10Bi12S23 C 2/m 2/m |
| |
Other Cuprobismutite Information
|
| References: |
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
| See Also: |
Links to other databases for Cuprobismutite :
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
Search for Cuprobismutite using:
[AOL]
[Bing]
[Dog Pile]
[GeoScienceWorld]
[HotBot]
[Ixquick]
[Lycos]
[MAMMA]
[Scirus]
[Teoma]
[WebCrawler]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Cuprobismutite :
Ask about Cuprobismutite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in
Español
Print or Cut-and-Paste your Cuprobismutite Specimen Label here :
|
Cuprobismutite
Cu10Bi12S23
Dana No: 03.08.02.01 Strunz No: 02.JA.10a
Locality:
Notes:
|
|
| |
| |
|
| |
Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.