I recently visited the Royal Peacock Mine in Nevada in 2018 and picked up this large piece of fluorescent opal. This beautiful opal will fluoresce a bright green when exposed to a long wave UV light source. We consider this to be a Large Cabinet sized specimen (LGC). This beautiful mineral specimen is available today!
Locality:Royal Peacock Mine, Virgin Valley, Nevada
Measurement:145mm x 102mm x 58mm