Essential minerals
Revision as of 06:48, 24 July 2013 by (username removed)
Description
Those minerals existing in a rock that are used for its classification in main petrographic families or classes; see quartz, alkali feldspar, plagioclase, feldspathoid.
Synonyms and Related Terms
main minerals; minerais essenciais (Port.)
Authority
- Submitted information Comment: José Delgado Rodrigues, LNEC, 2009.