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!

Topaz, var. pycnite, from Altenberg, Germany

Contributed by: Axel Emmermann
minID:
Date: Jan 23rd, 2025
Locality: Altenberg, Sächsische Schweiz-Osterzgebirge, Saxony, Germany (See on Mindat)

Description:
A large specimen with columnar crystals of this topaz variety. The fluorescence is medium to weak but still very visible. Photo in LW-UV.

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

Summary of luminescence responses:

Topaz

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