O57 Chalcedony & Calcite fluorescent minerals Mexico responds green under shortwave

Mexico responds green under shortwave and a cream / sky blue under midwave and longwave UV

Truly special specimens and a must for any fluorescent mineral display

N - 2 Willemite from Franklin

Kit includes UV blocking safety glasses and 10 fluorescent mineral samples that are labeled and bagged individually

O57 Chalcedony & Calcite fluorescent minerals Mexico responds green under shortwaveO57 chalcedony & calcite from Crawford, Nebraska lime green chalcedony & red calcite known as watermelon rock due to its food appeal. 3. 6 ounces weight 3 1 2x2 size responds best under midwave and shortwave. Whitish yellow response under longwave. The purple response is an unknown mineral response.