Roger Weller, geology instructor
[email protected] copyright 2010-R.Weller
aquamarine crystal-1
Mingora, Pakistan
This almost colorless, highly transparent
aquamarine crystal is about 3 centimeters
long and 15 grams in weight.
beryl
73
Photo is copyright free only for
non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.