What is Native Cadmium?
Native cadmium is the elemental cadmium mineral, a very rare metallic species distinct from cadmium-bearing ores such as sphalerite and greenockite.
Mineralogy and structure
The reference formula is Cd. Native Cadmium belongs to the native elements and crystallises in the hexagonal system. Mindat separates the mineral Native Cadmium from the commodity page for the chemical element. Its hexagonal close-packed structure and high density reflect elemental metallic bonding. Cadmium compounds and dust are toxic; this is a sealed display specimen only.
Colour and appearance
Typical colours include tin-white, silver-grey and tarnished grey. For small or complex mineral species, crystal size, transparency, lustre and matrix association are often more diagnostic than colour alone.
Formation and localities
Native Cadmium forms in or is associated with highly reducing mineralising environments associated with cadmium-rich ore assemblages. Important documented localities include rare localities associated with cadmium mineralisation. A precise mine or geological setting is preferable to a broad country label when it is known.
Collecting and care
Native Cadmium 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.
