A little nodule of roeblingite, showing its classical coconut-flesh appearance. Fluorescent orange/red under shortwave UV light. The roeblingite is surrounded by grains of, presumably, prehnite, fluorescent violet under shortwave UV, possibly mixed with other minerals. The “prehnite” also fluoresces white under midwave and longwave UV, with white afterglow. The label also lists hancockite, the reddish mineral in daylight. A tiny thumbnail roeblingite specimen, but very characteristic.
Fluorescence under shortwave UV light.
Normal light.
mineralman.com label.
Unknown labels.
