Cartão De Festividades Fluorescent Rock under UV Light Greeting Card

This is a perfect greeting card for your favorite rockhound, geologist, lapidary artist, or all around nature lover! Cover: A photo of an rock specimen fluorescing under UV light with the phrase "You don't just ROCK..." Inside: "you FLUORESCE!" Back: "This special rock specimen is from the J. Mummey collection, it is: Willemite (the striking green fluorescence), Franklinite (remains black under UV light) and Calcite (the beautiful orange fluorescence) on display under UV light. Rock specimen origin: Sterling Hill Mine, New Jersey. Photography and lapidary: mummey.com"