Fluorescent Mineral Database

A new secret project! Trying to create a nice Fluorescent Mineral Database (FMDB), which would be searchable by mineral, locality, and luminescence properties. Also making it easy for people to contribute with their own specimens!

Calcite, Fluorite, and Willemite - Castle Dome Mts, Arizona

Contributed by: Mark Cole
Date: Mar 18th, 2026
Locality: Castle Dome Mining District, Castle Dome Mountains, Yuma County, Arizona, USA (See on Mindat)

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

Fluorescence under longwave and shortwave UV light.
Fluorescence under longwave and shortwave UV light.

Summary of luminescence responses:

Calcite (Mindat) (RRUFF)

  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Red
Fluorite (Mindat) (RRUFF)
  • Fluorescence under Longwave (365nm LED) UV light: Blue
Willemite (Mindat) (RRUFF)
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Green

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