Main Igneous Composition Flashcards
0
Q
Intermediate
A
High content of plagioclase feldspar and amphibole
Diorite, andesite
1
Q
Felsic
A
High content of Na-rich plagioclase and/or K-feldspar and Quartz
(Granite, rhyolite)
Usually light in color
2
Q
Magic
A
High content of Ca-rich plagioclase pyroxene and olivine
(Gabbro, basalt)
Usually dark in color
3
Q
Ultra mafic
A
Very high content of olivine
Peridotite
