Opal-AN - Virgin Valley, Nevada

Contributed by: Mark Cole
Date: Apr 5th, 2026
Locality: Virgin Valley, Humboldt County, Nevada, USA (See on Mindat)
Size: 1 x 1 x 2 inches
Weight: 1.1 oz

Description:
The shortwave UV picture was shot with a 0.5 second exposure at f11, iso100 - one of the brightest fluorescent minerals I have photographed.

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