Convertible
| Convertible | |
|---|---|
| General and classification | |
| chemical formula | Pd 2 SnCu |
|
Mineral class (and possibly department) |
Elements - metals and intermetallic alloys |
|
System no. to Strunz and to Dana |
1.AG.20 ( 8th edition : I / A.17) 02/01/08/01 |
| Crystallographic Data | |
| Crystal system | orthorhombic |
| Crystal class ; symbol | mmm |
| Space group | Pmmm |
| Lattice parameters | a = 7.88 Å ; b = 7.88 Å; c = 3.94 Å Please complete the source as an individual reference |
| Formula units | Z = 4 Please complete the source as an individual reference |
| Twinning | polysynthetic |
| Physical Properties | |
| Mohs hardness | 4 to 4.5 |
| Density (g / cm 3 ) | 11.1 |
| Cleavage | Please complete |
| colour | pink with a slight purple hue |
| Line color | Please complete |
| transparency | opaque |
| shine | metallic |
Cabriit is a very rare mineral from the mineral class of the elements, more precisely metals and intermetallic compounds . It crystallizes in the orthorhombic crystal system with the chemical composition Pd 2 SnCu and forms up to 4 mm large grains of pink color in Mooihoekit .
Etymology and history
Cabriit was first found in 1970 by TL Evstigneeva and AD Genkin in its type locality on the Taimyr Peninsula in Northern Siberia ( Russia ). It was named after the Canadian mineralogist Louis J. Cabri.
classification
In the Strunz system , Cabriit is counted among the metals and intermetallic compounds, a subgroup of the elements. After the 8th edition it forms a group with Naldrettit , Paolovit , Taimyrit and Tatyanait . In the 9th edition , it forms a subgroup of PGE (platinum group elements) metal alloys with Paolovit.
In the Dana system , it forms a separate subgroup of the metallic elements and alloys with platinum metals .
Education and Locations
Cabriite is formed in Mooihoekite ores and galena - chalcopyrite veins. It is associated with mooihoekite, sperrylite , geeversite , putoranite , paolovite, talnakhite , sobolevskite , polarite , froodite , auricupride , silver , cassiterite , stannite , chalcopyrite, valerite , galenite, sphalerite and magnetite .
In addition to its type locality, other finds from the Sajan Mountains in Tuwa ( Russia ) and Lac-Mégantic in the Canadian province of Québec are known.
Crystal structure
Cabriit crystallizes in the orthorhombic crystal system in the space group Pmmm with the lattice parameters a = 7.88 Å , b = 7.88 Å and c = 3.94 Å as well as four formula units per unit cell .
See also
Individual evidence
literature
- Cabriit in: Anthony et al .: Handbook of Mineralogy , 1990, 1, 101 ( pdf ).