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!

Hydrozincite and Calcite from Belgium

Contributed by: FMS Admin
Date: Mar 7th, 2026
Locality: Plombières, Liège, Wallonia, Belgium (See on Mindat)

Description:
This calcite and hydrozincite combo comes from an old Belgian lead/zinc mine near Plombières, Liège province, Belgium. The locality is no longer accessible since it\'s been turned into a parking lot. One could find 3-color specimens there: yellowish, red and blue (gypsum, calcite and hydrozincite).

Source: Fluorescent Minerals Workgroup MKA : http://fluo.mineralogie.be/

Originally posted by Axel Emmermann on Nature's Rainbows.

Fluorescence under shortwave UV light.
Fluorescence under shortwave UV light.

Summary of luminescence responses:

Hydrozincite (Mindat) (RRUFF)

  • Fluorescence under Shortwave (255nm LED) UV light: Blue
Calcite (Mindat) (RRUFF)
  • Fluorescence under Shortwave (255nm LED) UV light: Red

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