These are polymer clay "millefiori style" beads right?

I am pretty sure I paid to learn on this one - but was hoping someone could confirm these are polymer clay beads, if possible. I noticed one of them wasnt completely covered and had a darker porous appearance, so I tried to include closeups of that one.

Necklace is 20" long, no spacers, has an old barrel clasp. The perforation holes are small and there is no weird residue or anything around them. I was reading the polymer clay beads were made starting in the 1980s in India and was trying to get a feel for when mine might have been made, maybe they are junk from Michaels, who knows.

Thank you in advance!
Sharon