What is "thuringite"

Thuringite \Thu*rin"gite\, n. [From Thuringia, where it is found.] (Min.) A mineral occurring as an aggregation of minute scales having an olive-green color and pearly luster. It is a hydrous silicate of aluminia and iron.

n. (context mineralogy English) A hydrous silicate of iron and aluminium occurring as an aggregation of minute olive-green scales

Thuringite is a variety of the chlorite mineral chamosite, a hydrous iron and aluminium silicate mineral. It is usually found as small green scales deposited on other minerals, particularly to which it is closely related.

It is named after the German state of Thuringia.