Boulder 29
 

 
From Miller Canyon, Arizona, this is a very large piece of red/orange Calcite with variegated zones of fluorescence.  The Calcite is also semi-translucent as can be seen in a slight halo effect around the spots of green Willemite as well as the small hazy area of blue Hydrozincite in the lower left.  Shown under shortwave UV.  Dimensions are 6 1/2 x 4 x 2 1/2 inches.  Price: $75