fibroferrite

fibroferrite

[¦fī·brō′fe‚rīt]
(mineralogy)
Fe(SO4)(OH)·5H2O A yellowish mineral composed of a hydrous basic ferric sulfate, occurring in fibrous form.
References in periodicals archive ?
The three species are virtually indistinguishable and occur together as dull, beige, yellow and yellowish white, powdery efflorescences and crusts associated with epsomite, melanterite and fibroferrite.
Fibroferrite is a very rare, recent deposition in old workings of the Vilmos section, occurring as yellow, uneven crusts and aggregates of thin fibers 0.
They have grown in a pyrite-chlorite matrix with capillary white halotrichite and fibroferrite (?