Zunyite - Big Bertha Mine, Yuma County, Arizona

Contributed by: Mark Cole
Date: Mar 24th, 2026
Locality: Big Bertha Mine, Middle Camp-Oro Fino Mining District, Dome Rock Mountains, La Paz County, Arizona, USA (See on Mindat)

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

Fluorescence under shortwave UV light.

Summary of luminescence responses:

Zunyite (Mindat) (RRUFF)

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