What is Cabriite?
Cabriite is a rare palladium copper tin mineral from platinum-group element assemblages, important for the mineralogy of nickel-copper sulphide deposits.
Mineralogy and structure
The reference formula is Pd2CuSn. Cabriite belongs to the native elements and crystallises in the orthorhombic system. The orthorhombic intermetallic structure reflects ordered palladium, copper and tin. Cabriite is usually microscopic or embedded in ore, so locality and analytical confirmation are more useful than colour alone.
Colour and appearance
Typical colours include silver-grey to metallic grey. For small or complex mineral species, crystal size, transparency, lustre and matrix association are often more diagnostic than colour alone.
Formation and localities
Cabriite forms in or is associated with magmatic sulphide ores and platinum-group mineral assemblages. Important documented localities include Russia, Canada and other platinum-group mineral districts. A precise mine or geological setting is preferable to a broad country label when it is known.
Collecting and care
Cabriite is best treated as a labelled reference or collector specimen. Protect fragile crystals from impact and humidity changes. Arsenic-, cadmium-, lead-, thorium- and selenium-bearing minerals should not be cut, ground or used in jewellery; wash hands after handling and keep them away from food and children.
