Szomolnokite
Szomolnokite is a monoclinic iron sulfate mineral forming a complete solid solution with magnesium end-member kieserite. In 1877 szomolnokite’s name was derived by Joseph Krenner from its type locality of oxidized sulfide ore containing iron in Szomolnok, Slovakia.
As of mid-January 2020 the only continent on which szomolnokite has not been found and reported is Antarctica.
