M ColeDec 1, 2015Scheelite, Powellite, Hyalite Opal under Midwave - AZ The opal matrix on this piece has an interesting shift to the blue end of the spectrum under midwave UV.Tags:Scheelite Powellite Hyalite |USA-AZ Midwave0 views
The opal matrix on this piece has an interesting shift to the blue end of the spectrum under midwave UV.
