Roger Weller, geology instructor
[email protected] copyright 2011-R.Weller
borax altering to tincalconite-4
another close view
Boron, San Diego County, California
tincalconite
2752b
Photo is copyright free only
for
non-commercial educational uses.
Credit photo to R.Weller/Cochise College
from the A.L. Flagg collection