Dims: 3.39x1.81x1.30" (8.6x4.6x3.3cm)
Wt: 5.77oz (163.4g)
Agrigennto, Sicily, Italy
This specimen of aragonite is interesting because of the shape of its crystals. They are all hexagons, with white interiors and almost colorless exteriors. Interspersed among these are numerous crystals of sulfur, most of which are not well formed, but their yellow color adds a bit more interest to the specimen. Under ultra-violet light, however, this specimen really stands out. Under long wave, it glows a bright orange (the dealer thinks it glows pink - perhaps his UV lamps are a different wavelength than mine). Under short-wave UV, the aragonite glows a soft green which persists after the light is turned off - it is a phosphorescent specimen. If you have both lights on at the same time, the orange glow dominates but the glow goes instantly to green when the lights are turned off, this is a cool interesting effect!