Andesite Photos
Cochise College
Photos of Rocks Igneous Rocks
Virtual Geology Museum
Hall of Rocks
Geology Home Page
Roger Weller, geology instructor
Andesite Photos
Andesite
last edited:
4/6/07
number of photos: 18
Andesite is a fine-grained (aphanitic),
volcanic,
intermediate silicic igneous rock with a composition
part way between basalt and rhyolite.
It is commonly porphyritic.
photos
andesite, porphyritic:
1
2
3
4
5
6
andesite breccia:
1
2
hornblende andesite:
1
2
3
4
andesite porphyry:
1
2
3
4
5
6
Photos are copyright free for non-commercial educational
uses.
Just credit photos to R.Weller/Cochise College.
copyright 2007-R.Weller