Lucite or Plastic?

I bought some necklaces at a flea market a few years ago. They came with a tag on them that said "Original Lucite by Dupont". I recently took them apart and started to make some jewelry pieces with them. Shown below is a bracelet I made using some dark teal marbled beads and copper oxidized wire.



I decided that before I listed them for sale I wanted to do a little research to make sure what I had was genuine Lucitie even though the tag said it was. Almost everything I found indicated that Lucite is heavier then plastic and doesn't have seams. Well, the beads I have are light and do have seams. I did find one source that said that newer Lucite beads were lighter and could have seams. Since I only found that piece of information in one place I don't feel comfortable listing these for sale as Lucite.So, I guess I will be wearing the pieces I made myself. If I can find a definitive answer in the future I have plenty more beads to make many more pieces.

If anyone has any information about Lucite beads that they can share, I would love to hear your comments.