the chemical element Rhodium : processing: 1g powder, 1g pressed cylinder, 1 g argon arc remelted pellet. — Photo: Alchemist-hp ( talk ) www.pse-mendelejew.de derivative work: Purpy Pupple ( talk ) · CC BY-SA 3.0 de
Rhodium
A rare, hard silvery-white platinum-group metal (symbol Rh, atomic number 45) — among the most precious of elements.
Intro adapted from Wikipedia (CC BY-SA).
Rhodium is an IMA-recognized mineral species in the native element class, with the chemical formula Rh.
It crystallizes in the cubic crystal system (space group Fm3m). It is a member of the Copper structural group.
Key properties: specific gravity 16.5; Metallic. R: (470) 75.2, (546) 72.6, (589) 73.3, (650) 75.7 luster.
IMA symbol Rh, IMA status: approved, named in 1974.
A single grain was found in heavy mineral concentrates (Stillwater complex, Montana, USA).
It is found associated with Platinum, Pt–Fe alloy, gold, moncheite, kotulskite, merenskyite, cooperite, braggite, vysotskite, sperrylite, pyrite, chalcopyrite, pyrrhotite, chromite.
Its name comes from the Greek rhodon, rose.