Lexicon

Felsic

A term used to describe light-colored igneous rocks with an abundance of light-colored minerals, especially feldspars and quartz.

Felsic quartz in the McDowell Mountains Arizona

 

 

 

 

 

 

 

 

 

 

 

 

 

Piles of felsic-rich quartz emerge from the McDowell Mountains in Scottsdale, Arizona