To get a really nice shine on amber, I hand-rub it with denim, then
finish by hand-rubbing it with chamois cloth (the kind you can use
for drying your car).
IF you do want to machine polish it, keep it at a VERY low speed.
It’s ridiculously easy to burn or scorch the surface with friction
heat, which is why I prefer just a nice hand-rubbing finish.
Also - I assume you know not to put it in the pickle or ultrasonic
and to avoid harsh chemicals. Amber is quite porous.
Otherwise, it’s a warm, lovely material to work with and can be
truly gorgeous when nicely worked.
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