From the bakelite I've handled (one piece was a WWII cribbage board) it is very dense and therefore heavy, compared to plastic and resins, however you define those. I have only handled a few pieces of bakelite jewelry but would expect beads would be heavier than expected, more equivalent to stone like jade. I think bakelte was replaced (like in radio faces etc and in industry) because the plastics coming in, Mrs. Robinson, was lighter and cheaper. But I was just a kid then...