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. 1 2 "New technology to extract potash from verdete slate". International Mining. 2010-12-06. Retrieved 2020-08-14.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.