Tonalite (trondhjemite)
Tonalite is a granitoid (contains lots of quartz just like granite but feldspar is almost exclusively Na-Ca feldspar - plagioclase). The sample is rich in mica (biotite and muscovite). Width of sample 9 cm.
Size: 3000px × 2000px
Location: Sundsvall, Sweden
Photo credit: © Siim Sepp / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: biotite, feldspar, felsic, granitoid, igneous, intrusive, leucocratic, mica, micaceous, muscovite, oligoclase, plagioclase, plagiogranite, rock, tonalite, trondhjemite, ttg
