Fluorescent Mineral Database

A new secret project! Trying to create a nice Fluorescent Mineral Database (FMDB), which would be searchable by mineral, locality, and luminescence properties. Also making it easy for people to contribute with their own specimens!

Aragonite from the Cozzo Disi Mine, Agrigento, Sicily, Italy

Contributed by: Mark Cole
Date: Apr 9th, 2026
Locality: Cozzo Disi Mine (Cozzodisi Mine), Casteltermini, Agrigento Province, Sicily, Italy (See on Mindat)
Size: 4 x 2.5 x 4 inches
Weight: 17.8 oz

Description:
The fluorescence on this bunch of aragonite crystals is unusual. Under shortwave UV this piece is whiter than the normal peach color, also under MW. Under LW it shows the classic pink fluorescence. It is also unusually phosphorescent.

Originally posted by Mark Cole on Nature's Rainbows in 2017.

Fluorescence under longwave UV light.
Fluorescence under longwave UV light.
Fluorescence under midwave UV light.
Fluorescence under midwave UV light.
Fluorescence under shortwave UV light.
Fluorescence under shortwave UV light.
Afterglow after exposure to shortwave UV light.
Afterglow after exposure to shortwave UV light.
Normal light.
Normal light.

Summary of luminescence responses:

Aragonite (Mindat) (RRUFF)

  • Fluorescence under Longwave (365nm LED) UV light: Pink
  • Fluorescence under Midwave (305nm Lamp/Mercury) UV light: White
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: White
  • Afterglow after exposure to Shortwave (254nm Lamp/Mercury) UV light: Blue

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