Red Cloud 4

 

 
A combination of red Calcite, blue/violet Fluorite, and creamy white Willemite arranged in bands sort of like a sandwich.  Shown under shortwave UV in the top picture.  Shown under midwave UV in the lower picture where the Calcite and Fluorite are brighter.  Dimensions are 4 1/2 x 3 1/2 x 2 inches.  Price: $25.