picromerite

picromerite

[pi′kräm·ə‚rīt]
(mineralogy)
K2Mg(SO4)2·6H2O A white mineral composed of hydrous sulfate of magnesium and potassium, occurring as crystalline encrustations.
References in periodicals archive ?
Associated minerals are: humnierite, gypsum, epsomite, picromerite, hematite and an unidentified K-Mg-Mn-vanadate.