botryogen, copiapite, jarosite, natrojarosite, epsomite, gypsum, and sometimes also melanterite, szomolnokite...of the Czech mineralogist František Slavik (1876–1957), professor at Charles University in Prague. Rost...Vrané, Štĕchovice, Jarov, Troja, and Mandát, all Bohemia, Czech Republik (Van Tassel 1972); Smolnik and...fibroferrite, pickeringite, slavikite, gypsum, epsomite, melanterite, and alunogen (Parafiniuk 1996)....of the disordered, isolated sulfate anion, the central S2, oxygen atoms O9 and O11 were treated anisotropically |