I hope that in the New Year I will prepare various scans of my previous work. I will show the Ligabue Magazine with my article about zi beads, and buying info soon.

Here's an online article from BEADS (SBR) that is a good general reference to stone beads and imitations:

https://surface.syr.edu/beads/vol10/iss1/5/?utm_source=surface.syr.edu%2Fbeads%2Fvol10%2Fiss1%2F5&utm_medium=PDF&utm_campaign=PDFCoverPages

I will find some others too.... Jamey