If you feel that high-tech analysis of the piece (non-destructive) would be worth your time an $ I have a person at our new Maine Mineral and Gem Museum that has all the tools needed. He does analysis for me when I find a piece of rough that I can’t identify. He also does detailed work for the hard-rock miners in New England.
Here are the links:
But let me now first so I can make an introduction to lubricate the contact. (I am on the board of trustees)
Bob