Long-Wave Fluorescent Minerals Collection

A collection of 9 number-coded specimens that allow students to study the response of minerals to long-wave ultraviolet rays. Set includes identification key and compartmented tray. Specimens measure approximately 1 to 1-1/2".

Collection of 15 number coded specimens that allows study in the response of specimens to long-wave ultraviolet rays. Specimens approximately 1-1/2" x 1-1/2" Specimens approximately 1-1/2" x 1-1/2"