Stannopalladinite
| Stannopalladinite | |
|---|---|
| General and classification | |
| chemical formula | (Pd, Cu) 3 Sn 2 |
|
Mineral class (and possibly department) |
Elements - metals and intermetallic alloys |
|
System no. to Strunz and to Dana |
1.AG.25 ( 8th edition : I / A.16) 02/01/09/01 |
| Crystallographic Data | |
| Crystal system | hexagonal |
| Crystal class ; symbol | Please complete |
| Lattice parameters | a = 4.40 Å ; c = 5.66 Å Please complete the source as an individual reference |
| Formula units | Z = 1 Please complete the source as an individual reference |
| Physical Properties | |
| Mohs hardness | 4.5 to 5 |
| Density (g / cm 3 ) | Please complete |
| Cleavage | Please complete |
| colour | brown-pink |
| Line color | Please complete |
| transparency | opaque |
| shine | metallic |
Stannopalladinite is a very rare mineral from the mineral class of the elements, more precisely metals and intermetallic compounds . It crystallizes in the hexagonal crystal system with the chemical composition (Pd, Cu) 3 Sn 2 and forms elongated or rounded cubic crystals up to 0.1 mm in size. It's grown together with niggliit .
Etymology and history
Stannopalladinite was first found in 1947 by LN Maslenitzky, PV Faleev and EV Iskyul in its type locality , the Ugol'nyi-Ruchei mine near Norilsk in Siberia ( Russia ). It is named after the elements palladium and tin it contains.
classification
In the Strunz system , stannopalladinite is one of the metals and intermetallic compounds, a subgroup of the elements. After the 8th edition , it forms a group together with atokite , niggliite , palarstanid , rustenburgite , plumbopalladinite and zvyagintsevit . In the 9th edition it forms a subgroup of the PGE metal alloys (platinum group elements) with plumbopalladinite.
In the Dana system, which is mainly used in the English-speaking world , it forms a separate subgroup of metallic elements and alloys with platinum metals .
Education and Locations
Stannopalladinite is formed in sulphidic copper-nickel ores. It is associated with chalcopyrite , platinum - iron alloys, niggliite, hessite , as well as platinum and palladium tellurides .
In addition to its type locality, finds from the Mayak mine (also in Norilsk), Lydenburg in South Africa and the Prince of Wales-Hyder Census Area in the US state of Alaska are known.
Crystal structure
Stannopalladinite crystallizes in the hexagonal crystal system with the lattice parameters a = 4.40 Å and c = 5.66 Å as well as one formula unit per unit cell . An exact space group is not known.
See also
Individual evidence
literature
- Stannopalladinite. In: Anthony et al.: Handbook of Mineralogy. 1990, 1, 101 ( PDF ).