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!

Celestine from La Grasta Mine, Sicily, Italy

Contributed by: Simone Conti
minID: 4U1-XW8
Date: Dec 03rd, 2024
Locality: La Grasta Mine (Grasta Mine), Caltanissetta, Caltanissetta Province, Sicily, Italy (See on Mindat)
Size: 5 x 7 x 7 x cm
Weight: 355 g

Description:
Clear white celestine crystals (about 1cm) with sulphur on matrix. The celestine fluoresces a nice blue/white under UV light (any wavelength) and it has a greenish phosphorescence/afterglow.

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

Summary of luminescence responses:

Celestine

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

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