How do you tell the difference between Glass and Acrylic beads?

Please? Without having to break them.How do you tell the difference between Glass and Acrylic beads?
It's really hard to tell just by looking. The acrylic ones are really nice, some of them anyway, and look just like glass. The easiest way to tell the difference is the weight. Acrylic beads are much lighter-weight than are glass ones. Another simple test is temperature. Glass beads, when you first pick them up, will be much cooler than acrylic ones. After being in your hand for a few seconds, glass beads will warm up a bit. The acrylic ones don't change temperature as quickly, either.How do you tell the difference between Glass and Acrylic beads?
Differences to tell between the 2 could be:





Weigh them - acrylic is lighter.


Try burning one - acrylic will burn


Glass is harder than acrylic will scratch a plastic sheet if dragged over it.


settling test in a viscous liquid, glass will settle quicker due to its weight


if you have a container of each, try smelling them, acrylic as its own distinctive smell


refractive index is different but may be difficult to measure


acrylic will soften if placed in a suitable solvent





Hope these help
Give them the squeak test. Glass will squeak when forced together in the palm of your hand the same way glass marbles do. Acrylic does not have the same properties to make that tell tale squeak.
Click them against your teeth! You will quickly be able to tell glass from any type of acrylic or plastic.

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