TAG-021 Penumbra Rods

Named for the shadowy edge of a lunar eclipse, Penumbra is a reactive “silvered” cobalt blue. Different colors are produced from reduction or oxidation, primarily a wide variety of blues and greens. Reduction can create a luster that you can trap under a clear encasement. However, surface haze doesn’t burn off as easily as amber/purple type glasses.

Clear
pounds

Reviews

There are no reviews yet.

Be the first to review “TAG-021 Penumbra Rods”

Your email address will not be published. Required fields are marked *