Researchers tested biodegradable glass beads in the lab, in soil, and even in mice to see how the materials broke down over time. Reading time 2 minutes Glass can be cleaned and reused many times, but ...

Beads from Must Farm made of amber, siltstone, shale, tin, and faience (top row), and glass (second and third rows) The majority of the beads are blue and green glass—the largest collection of glass ...

These glass beads might be from Venice. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Brilliantly blue beads from Europe unearthed by ...