Geoscience Fluorescent Set includes fifteen 112 in x 112 in specimens that fluoresce when exposed to either longwave or shortwave ultraviolet light Numbered and keyed specimens come in a compartmentalized box Features. Intro to Fluorescent Minerals Collection. Set is comprised of a good allaround number of specimens. Fluorescent when exposed to either longwave or shortwave ultraviolet light. Numbered and keyed specimens are stored in a compartmentalized box. Ideal for personal enjoyment sharing with others and educational demonstrations. Set of 15Specifications. Country of Origin United States. Allergens Contains No Allergens