|
|
Tetra-auricupride Mineral Data
|
|
|
General Tetra-auricupride Information
|
Chemical Formula: |
AuCu |
Composition: |
Molecular Weight = 260.51 gm |
|
Copper 24.39 % Cu |
|
Gold 75.61 % Au |
|
______ |
|
100.00 % |
Empirical Formula: |
AuCu |
Environment: |
In mafic to ultrabasic serpentinites which contain platinum group metals. |
IMA Status: |
Approved IMA 1982 |
Locality: |
Sardala, Xinjiang, China. Link to MinDat.org Location Data. |
Name Origin: |
Named after its crystal symmetry and Au, Cu content. |
Synonym: |
ICSD 42574 |
|
PDF 25-1220 |
|
Tetra-auricupride Image |
Images:
|
|
Tetra-auricupride Crystallography
|
Axial Ratios: |
a:c = 1:0.92676 |
Cell Dimensions: |
a = 3.96, c = 3.67, Z = 2; V = 57.55 Den(Calc)= 15.03 |
Crystal System: |
Tetragonal - Ditetragonal Dipyramidal H-M Symbol (4/m 2/m 2/m) Space Group: P 4/mmm |
X Ray Diffraction: |
By Intensity(I/Io): 1.195(1), 2.24(1), 0.797(0.9), |
|
Physical Properties of Tetra-auricupride
|
Cleavage: |
None |
Color: |
Golden yellow. |
Density: |
15.03 |
Diaphaneity: |
Opaque |
Fracture: |
Malleable - Deforms rather than breaking apart with a hammer. |
Habit: |
Anhedral Grains - Granular minerals without the expression of crystal shapes |
Hardness: |
4.5 - Between Fluorite and Apatite |
Luminescence: |
Non-fluorescent. |
Luster: |
Metallic |
Streak: |
yellow |
|
Optical Properties of Tetra-auricupride
|
RL Anisotrophism: |
Weak, with colors from gray to light gray. |
RL Color: |
Copper red with a yellow tint. |
Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Tetra-auricupride in Air
λ |
R |
|
∑ R(λ) |
405 nm |
44.60 |
|
|
436 nm |
46.80 |
|
480 nm |
50.30 |
|
526 nm |
55.80 |
|
546 nm |
61.20 |
|
578 nm |
74.40 |
|
589 nm |
76.60 |
|
622 nm |
83.60 |
|
644 nm |
84.90 |
|
656 nm |
85.40 |
|
664 nm |
86.60 |
|
700 nm |
91.30 |
|
Calculated Relative Intensity Colors of Tetra-auricupride in Air
Relative Intensity |
0% |
20% |
40% |
60% |
80% |
100% |
120% |
140% |
160% |
180% |
190% |
R |
|
|
|
|
|
|
|
|
|
|
|
|
|
Calculated Properties of Tetra-auricupride
|
Electron Density: |
Bulk Density (Electron Density)=12.5 gm/cc note: Specific Gravity of Tetra-auricupride =15.0 gm/cc. |
Fermion Index: |
Fermion Index = 0 Boson Index = 1 |
Photoelectric: |
PETetra-auricupride =1,252.86 barns/electron U=PETetra-auricupride x rElectron Density=15612.99 barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Tetra-auricupride is Not Radioactive |
|
Tetra-auricupride Classification
|
Dana Class: |
01.01.02.02 (01)Native Elements |
|
(01.01)with metallic elements other than the platinum group |
|
(01.01.02)Auricupride Group |
|
01.01.02.01 Auricupride Cu3Au P m3m 4/m 3 2/m |
|
01.01.02.02 Tetra-auricupride AuCu P 4/mmm 4/m 2/m 2/m |
|
01.01.02.03 Yuanjiangite AuSn P 63/mmc 6/m 2/m 2/m |
Strunz Class: |
01.AA.10b 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides) |
|
01.A - Metals and Intermetallic Alloys |
|
01.AA -Copper-cupalite family |
|
01.AA.10b Tetra-auricupride AuCu P 4/mmm 4/m 2/m 2/m |
|
Other Tetra-auricupride Information
|
References: |
NAME( Dana8) PHYS. PROP.(List of New Min. Names,28-33th,1974-1984) |
See Also: |
Links to other databases for Tetra-auricupride :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - MinDAT
8 - Mineralienatlas (Deutsch)
9 - Online Mineral Museum
10 - QUT Mineral Atlas
11 - Ruff.Info
Search for Tetra-auricupride using:
[AOL]
[Bing]
[Dog Pile]
[GeoScienceWorld]
[HotBot]
[Ixquick]
[Lycos]
[MAMMA]
[Scirus]
[Teoma]
[WebCrawler]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Tetra-auricupride :
Ask about Tetra-auricupride 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
Espa�ol
Print or Cut-and-Paste your Tetra-auricupride Specimen Label here :
Tetra-auricupride
AuCu
Dana No: 01.01.02.02 Strunz No: 01.AA.10b
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.