There has been a lot of mention of Fire Mountain. There is another
company that I have bought beads from for over a decade with
consistently good results - Rings and Things, based in Spokane WA.
They are very good about identifying items that are enhanced in any
way. They also identify which items have “decriptive names” that do
not reflect the true material.
YMMV, but I am a happy customer. Their website is