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djerfisherite : ウィキペディア英語版 | djerfisherite
Djerfisherite is an alkali copper–iron sulfide mineral and a member of the djerfisherite group. It has the chemical formula K6Na(Fe2+,Cu,Ni)25S26Cl. Its type locality is the Kota-Kota meteorite (Marimba meteorite), Malawi. It was first described in 1966 and named after professor Daniel Jerome Fisher (1896–1988), University of Chicago.〔 It has been reported from meteorites, copper-nickel hydrothermal deposits, skarn, pegmatite, kimberlites and alkalic intrusive complexes. Associated minerals include kamacite, troilite, schreibersite, clinoenstatite, tridymite, cristobalite, daubreelite, graphite, roedderite, alabandite, talnakhite, pentlandite, chalcopyrite, magnetite, valleriite, sphalerite and platinum minerals.〔 == References ==
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