Verdete

Verdete is a type of slate rock found in Brazil.[1]

Major deposits are found in the state of Minas Gerais.[1]

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.

References
  1. "New technology to extract potash from verdete slate". International Mining. 2010-12-06. Retrieved 2020-08-14.


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