is the material of the Earth's mantle. Typical elements are Copper, Zinc, Mercury, Lead and Bismuth. It is the sulphide phase in the separation of elements based on chemical affinities which is used as a model when estimating the chemical composition of the Earth.
chalcophile, chalcophilic In geochemistry, an element having a strong affinity for sulfur, and therefore tending to be more abundant in sulfide minerals and ores than in other types of rock.
(of a chemical element in the earth) having an affinity for sulfur.