botryogen


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botryogen

[′bä·trē·ə‚jen]
(mineralogy)
MgFe(SO4)2(OH)·7H2O Orange-red, monoclinic mineral consisting of a hydrated basic sulfate of magnesium and trivalent iron.
References in periodicals archive ?
Very tiny rosettes of bladed pale-orange botryogen crystals have been found (Fig.
Among them were colorful (but unfortunately unstable) iron sulfates such as voltaite, coquimbite, botryogen and others from the abandoned subterranean workings in the area of the Alfred pit, Riotinto mine, Riotinto, Huelva.
On level 33 it is extremely common in octahedral crystals to 3 mm on halotrichite, pink coquimbite, red botryogen, blue chalcanthite, brown jarosite, yellow copiapite and many other complex sulfates .