Wikipedia
Verdete
Verdete is a type of slate rock found in Brazil.
Major deposits are found in the state of Minas Gerais.
The term verdete is the local name for occurrences of a greenish rock that is high in both potassium and iron. The main potassium bearing minerals are glauconite and muscovite.
Category:Slate Category:Geology of Brazil Category:Landforms of Minas Gerais