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!

Scheelite from the Tae Hwa Mine, South Korea

Contributed by: Simone Conti
minID: 5C1-FME
Date: Dec 04th, 2024
Locality: Tae Hwa Mine, Neungam-ri (Neung Am-ri; Noungam-ri), Angseong-myeon, Chungju City, North Chungcheong Province, South Korea (See on Mindat)
Size: 2.2 x 1.6 x 2.5 x cm
Weight: 21.7 g

Description:
A couple of scheelite crystals: brown in daylight they show the typical bright blue fluorescence of all scheelite under shortwave UV light. In addition, they also fluoresce orange under midwave UV, and a much muted (and dustier) orange under longwave UV.

Normal light.
Normal light.
Fluorescence under shortwave UV light.
Fluorescence under shortwave UV light.
Fluorescence under midwave UV light.
Fluorescence under midwave UV light.
Fluorescence under longwave UV light.
Fluorescence under longwave UV light.

Summary of luminescence responses:

Scheelite

  • Fluorescence under Shortwave (255nm LED) UV light: Blue
  • Fluorescence under Midwave (305nm LED) UV light: Orange
  • Fluorescence under Longwave (365nm LED) UV light: Orange