Hyalite Opal - Stone Mt., Georgia

Contributed by: Mark Cole
Date: Mar 27th, 2026
Locality: Stone Mountain-Lithonia Mining District, DeKalb County, Georgia, USA (See on Mindat)

Description:
Originally posted by Mark Cole on Nature's Rainbows in 2015.

Fluorescence under shortwave UV light.

Normal light.

Summary of luminescence responses:

Opal (Mindat) (RRUFF)

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