stagman wrote:I was walking a old railroad grade above the Gila river rock picking around
when I would come to a good cut bank....came around bend bout a 30 foot high
bank and saw a blue color sticking out bout as big as a egg...started picking
with rock hammer, damndest thing I ever saw, rock wise, a pocket opened up
farther I went in and Chrysocolla rocks just kept coming out like quarters in a slot machine !!!
http://www.allaboutpocketknives.com/sta ... OLLA#1.jpg
I know absolutely nothing about this subject.
Why are these rocks special?