Ash was used by ancient Egyptions as a key component of Glass so the Original Mount St. Helens Volcanic Ash Glassworks made glass art from the volcano's ash starting in 1980.
They specialized iridescent art glass paperweights of which this is a classic example.
Measuring 2" tall it features an inner red blossom with a white spray across the exterior of the piece. The exterior is the classic iridescent finish these pieces are known for.
It would make a great gift for any at glass collector made especially significant by it's historical connection to Mount Saint Helens.