Castle Dome 1

 

 

From the Castle Dome Mine, Arizona, a rare combination of blue Hydrozincite and violet Fluorite with lesser amounts of yellowish-white Willemite and cream Aragonite/Caliche.  The top picture shows the response under shortwave UV where the Hydrozincite glows brightly.  The second picture is under longwave (same response as midwave in this case) where the Fluorite glows more brightly.  This piece is best view under a dual-wavelength lamp.   Dimensions are 2 1/2 x 2 1/2 x 1 inches.  Price: $10