Igneous Rocks Flashcards
1
Q
Phaneretic, quartz and orthoclase
A
Granite
2
Q
Porphysitic, Calcium Sodium plagioclase
A
Porphyrtic Andesite
3
Q
Light, Olivine, Aphanitic
A
Periodite
4
Q
A
Scoria
5
Q
Pyroclast, all color indexes, all essential minerals
A
Tuff
6
Q
Cools fast
small crystals
A
Extrusive
7
Q
Phaneretic, Calcium plagioclase, olivine
A
Gabro
8
Q
Cools slow
larger cystrals
A
Intrusive
9
Q
Aphanitic, quartz and orthoclase
A
Rhyolite
10
Q
Calcium plagioclase, olivine, aphanitic
A
Basalt
11
Q
Sodium plagioclase, muscovite, biotite
A
Obsidian
12
Q
Light, quartz, orthoclase, vesicular
A
Pumice
13
Q
A
Diorite