Pegmatite Photos                 
Cochise College
Photos of Rocks
Igneous Rocks
Geology Home Page
Roger Weller, geology instructor                       

wellerr@cochise.edu

 

Pegmatite 
last edited:  11/15/16    number of photos:  36                                                       
Pegmatite is an extremely coarse-grained plutonic
igneous rock.  Crystals are larger than one half inch. 
Some of the largest crystal ever found were in pegmatites. 
Many pegmatites have mineral compositions similar to granite
.

 

photos
pegmatite:   1  2  3  4  5  6  7  8  9  10  11  12
pegmatite from Santa Catalina Mountains:  1  2  3  4  5  6  7

pegmatite with beryl crystals:  1
pegmatite from Brazil:  1  2  3  4
pegmatite from Pala, California:  1  2  3  4  5
pegmatite from New Hampshire:  1  2  3
pegmatite with biotite mica:  1   2
pegmatite, polished:  1 
2

Photos are copyright free for non-commercial educational uses.
Just credit photos to R.Weller/Cochise College.

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