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!

Calcite and Chalcedony - Ogalala National Grassland, Nebraska

Contributed by: FMS Admin
Date: Mar 14th, 2026
Locality: Orella, Sioux County, Nebraska, USA (See on Mindat)

Description:
Paul Garland was a prolific collector and photographer of fluorescent minerals. Sadly, he passed a while ago. I obtained permission from his sister to post a few of his best specimens and pictures. This is a classic from Nebraska and an excellent specimen.

Originally posted by Mark Cole for Paul Garland on Nature's Rainbows.

Fluorescence under shortwave UV light.
Fluorescence under shortwave UV light.
Normal light.
Normal light.

Summary of luminescence responses:

Calcite (Mindat) (RRUFF)

  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Red
Chalcedony (Mindat) (RRUFF)
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Green

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