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!

Prehnite from Imilchil, Morocco

Contributed by: Simone Conti
minID: 9UL-DGG
Date: Dec 04th, 2024
Locality: Imilchil, Imilchil Caïdat, Imilchil Cercle, Midelt Province, Drâa-Tafilalet Region, Morocco (See on Mindat)
Size: 5 x 4 x 7 x cm
Weight: 201 g

Description:
A very nice rosette of light green prehnite crystals surrounded by quartz. Looks like a flower! Under longwave UV light the prehnite fluoresces a dim light blue. Not an impressive fluorescence, but quite interesting.

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

Summary of luminescence responses:

Prehnite

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