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.

Normal light.

Summary of luminescence responses:

Quartz (Mindat) (RRUFF)

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