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!

From a Belgian karst region: calcite

Contributed by: Axel Emmermann
minID:
Date: Jan 23rd, 2025
Locality: Chanxhe, Sprimont, Liège, Wallonia, Belgium (See on Mindat)

Description:
Belgium has quite a few calcite quarries that yield fluorescent specimens. There\'s one at Chanxhe, near Liège, in the Liège Province. Humic acids are incorporated in the calcite during formation and give rise to this fluorescence. Displays well under LW-UV.

Fluorescence under longwave UV light.
Fluorescence under longwave UV light.

Summary of luminescence responses:

Calcite

  • Fluorescence under Longwave (365nm LED) UV light: Yellow

FMDB Home Page
Submit a new specimen!