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!

Fluorescent/Phosphorescent Celestine and Strontianite, Lime City, Ohio

Contributed by: Chris Clemens
Date: Apr 24th, 2026
Locality: Stoneco Lime City Quarry, Lime City, Wood County, Ohio, USA (See on Mindat)
Size: 7.6 x 3.3 x 7.6 cm
Weight: 180 g

Description:
Blocky, white, celestine crystals, partially altered to strontianite, sit on a light-colored limestone matrix, from the Stoneco Quarry, Lime City, Wood County, Ohio. This specimen shows a similar blue/white, fluorescent response under all UV wavelengths. It also phosphoresces blue/green following exposure to shortwave and midwave UV, and green following longwave.

Originally posted by Chris Clemens on Nature's Rainbows in 2016.

Fluorescence under longwave UV light.
Fluorescence under longwave UV light.
Afterglow after exposure to longwave UV light.
Afterglow after exposure to longwave UV light.
Fluorescence under midwave UV light.
Fluorescence under midwave UV light.
Afterglow after exposure to midwave UV light.
Afterglow after exposure to 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:

Celestine (Mindat) (RRUFF)

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

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