This is a bright white, branching coral-like formation of pristine aragonite that shows a beautiful multi-wave fluorescent response under UV. This specimen is from Mexico, probably Santa Eulalia, in the state of Chihuahua, but the label information was incomplete. Under short wave UV the aragonite fluoresces beautiful shades of pastel green with bluish overtones. When the short wave lamp is turned off, blue/green phosphorescence is seen. This piece also shows warm white fluorescence and pale green phosphorescence under long wave UV. The size of this specimen is 84 x 64 x 43 mm, and it weighs 181 grams.
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