Hyalite Opal from the famous Spruce Pine Mine – North Carolina
Contributed by: Mark Cole
Date: Mar 15th, 2026
Locality: Spruce Pine, Mitchell County, North Carolina, USA (See on Mindat)
Description:
Originally posted by Mark Cole on Nature's Rainbows in 2015.
Summary of luminescence responses:
Opal-AN (Mindat) (RRUFF)
- Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Green