Alkali feldspar

Revision as of 08:29, 26 April 2022 by MDerrick (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search


A group of Feldspar minerals that are rich in the Alkali elements of Potassium and Sodium. Alkali-rich feldspars are: Microcline, Orthoclase, Anorthoclase, Sanidine, and Albite. They contain less than 5% Anorthite.

Synonyms and Related Terms

feldspath alcalin (Fr.); feldspato alcalino (Port.)

Resources and Citations

  • José Delgado Rodrigues, LNEC, 2009, submitted information.