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!

Laumontite on Prehnite from India

Contributed by: FMS Admin
Date: Mar 8th, 2026
Locality: Pune Division, Maharashtra, India (See on Mindat)

Description:
Laumontite fluoresces medium bright off-white. The prehnite matrix fluoresces extremely weak green.
Locality: Pune, Maharashtra State, India. The fluorescence is most likely due to organic matter: humic acids.

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

Originally posted by Axel Emmermann on Nature's Rainbows.

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

Summary of luminescence responses:

Laumontite (Mindat) (RRUFF)

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

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