Unnamed (Pt-Cu-Sn Alloy)
This page is currently not sponsored. Click here to sponsor this page.
Formula:
Pt(Cu0.67Sn0.33)
Lustre:
Metallic
Hardness:
2½
Specific Gravity:
14.75 (Calculated)
Crystal System:
Tetragonal
This page provides mineralogical data about Unnamed (Pt-Cu-Sn Alloy).
Unique Identifiers
Mindat ID:
55630
Long-form identifier:
mindat:1:1:55630:1
Physical Properties of Unnamed (Pt-Cu-Sn Alloy)
Metallic
Transparency:
Opaque
Hardness:
2½ on Mohs scale
Hardness:
VHN100=95 - 101 - Vickers
Comment:
On synthetic material
Density:
14.75 g/cm3 (Calculated)
Optical Data of Unnamed (Pt-Cu-Sn Alloy)
Anisotropism:
weakly anisotropic
Bireflectance:
none
Reflectivity:
| Wavelength | R1 (%) | R2 (%) |
|---|---|---|
| 470nm | 50.5% | 48.6% |
| 546nm | 53.2% | 50.6% |
| 589nm | 54.7% | 51.9% |
| 650nm | 56.8% | 53.9% |
Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 56.8%.
R1 shown in black, R2 shown in red
Colour in reflected light:
yellowish cream
Internal Reflections:
none
Pleochroism:
Non-pleochroic
Chemistry of Unnamed (Pt-Cu-Sn Alloy)
Mindat Formula:
Pt(Cu0.67Sn0.33)
Element Weights:
Elements listed:
Crystallography of Unnamed (Pt-Cu-Sn Alloy)
Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
P4/mmm
Setting:
P4/mmm
Cell Parameters:
a = 2.838(3) Å, c = 3.650(4) Å
Ratio:
a:c = 1 : 1.286
Unit Cell V:
29.40 ų (Calculated from Unit Cell)
Z:
1
Comment:
On synthetic material, space group inferred
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.6500 Å | (13.0) |
| 2.8380 Å | (14.2) |
| 2.2405 Å | (100.0) |
| 2.0068 Å | (36.4) |
| 1.8250 Å | (13.7) |
| 1.4190 Å | (12.2) |
| 1.3502 Å | (20.5) |
| 1.1988 Å | (27.0) |
| 1.1202 Å | (10.6) |
| 1.1182 Å | (10.6) |
| 0.8783 Å | (9.9) |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Unnamed (Pt-Cu-Sn Alloy)
mindat.org URL:
https://www.mindat.org/min-55630.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
Mineral Dealers:
References for Unnamed (Pt-Cu-Sn Alloy)
Reference List:
Barkov, Andrei Y., Bindi, Luca, Juárez-Arellano, Erick A., Tamura, Nobumichi, Shvedov, Gennadiy I., Ma, Chi, Martin, Robert F. (2021) Unnamed Pt(Cu0.67Sn0.33) from the Bolshoy Khailyk River, Western Sayans, Russia, and a Review of Related Compounds and Solid Solutions. Minerals, 11 (11) 1240 doi:10.3390/min11111240
Localities for Unnamed (Pt-Cu-Sn Alloy)
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Russia | |
| Barkov et al. (2021) |
