Had a discussion today with 3 sellers of copy beads in Java. All insist the makers use glass from old, dug, grave robbed, beads to make new beads. 2 described many many old broken monochrome beads reused. One said they took some westerners to Java to show them process. I'll contact them in my spare time to find out what they saw. OPne of he westerners who went to Java is a glass worker who will have beter understanding of the process.

I still have serious doubts.