krausite

krausite

[′krau̇‚sīt]
(mineralogy)
KFe(SO4)2·H2O A yellowish-green mineral composed of hydrous potassium iron sulfate.
References in periodicals archive ?
The deposit has produced an attractive suite of colorful, well-crystallized, hydrous sulfates including coquimbite, halotrichite, krausite, metavoltine, potassium alum, quenstedtite, r^merite and voltaite.