mamabear, Thanks. Sorry about my spelling. I meat to say what are these? Anyways, he was wanting to sell them...I don't think it would be worth his time.
You would be surprised by how many people will buy these beauties. They are perfect for gardens. They even sell them at a certain crystal, rock, gem shop. He won't make a million, but ya know every penny counts.
Mama, it's an old Gem Mine sluicing trick.. the road side mines place this chunks of colored glass on the buckets to entice people to buy those buckets. Never time your out and about sluicing.. check out what is typically laying on top of the seeded buckets.