J. Sejkora et T. Ridkosil, RETGERSITE FROM JACHYMOV, KRUSNE HORY MOUNTAINS, CZECH REPUBLIC, Neues Jahrbuch fur Mineralogie Monatshefte, (9), 1993, pp. 393-400
Retgersite, NiSO4.6H2O, from Jachymov, Krusne hory Mts., Czech Republi
c was identified by optical properties and X-ray powder diffraction da
ta. Chemical composition corresponds closely to the stoichiometric for
mula. The IR absorption data and thermal curves are given. Retgersite
from Jachymov is interpreted to be product of oxidation of gersdorffit
e.