Thank you for taking time to answer my question even though my question is so vague! I just confused between crushed glass and powder glass, I guess. However; after I read your reply, I have to say to myself Oh my god there are so many things about the beads to learn. Actually I just want to know that there is another kind of powder glass beads beside Kiffa .( I saw pics somewhere how to make Kiffa ) If you could show me the specimen , I will be appreciated.

Thanks again Jamey. You are the best !
Best regards,
Pk