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!

Yellow Fluorescing Quartz with Calcite - Woodbury, Tennessee

Contributed by: Mark Cole
Date: Apr 5th, 2026
Locality: Woodbury, Cannon County, Tennessee, USA (See on Mindat)

Description:
A wonderful deposit of brightly fluorescent geodes was opened up by road crews in Woodbury, Cannon County, Tennessee a few years ago. Most are organic activated.

Originally posted by Mark Cole on Nature's Rainbows in 2016.

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

Summary of luminescence responses:

Quartz (Mindat) (RRUFF)

  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Yellow

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