Fluorite, Hyalite, Willemite - Red Cloud Mine, La Paz County, Arizona

Contributed by: Mark Cole
Date: Mar 17th, 2026
Locality: Red Cloud Mine, Silver Mining District, 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.

Normal light.

Summary of luminescence responses:

Willemite (Mindat) (RRUFF)

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

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

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