Siderogel
Siderogel is an amorphous mineral consisting of iron oxide-hydroxide, the same chemical compound as limonite and goethite; or possibly an hydrate of the same •n.
Siderogel is described as blackish, brownish, or reddish-brown, often glassy and translucent. It may be a gossan, the result of weathering and oxidation of sulfide ores.
The International Mineralogical Association does not officially recognize siderogel as a mineral species.Occurrence
Siderogel has been reported in a few locations in Europe and Asia, including a site near Gavà and Bruguers, Catalunya; in the mine of Codos, Aragon; in the Becke-Oese quarry between Menden and Hemer, Germany; and in the Gaosong deposit, Gejiu China.
