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 and Willemite - Stevenson-Bennett Mine, New Mexico

Contributed by: Chris Clemens
Date: Apr 26th, 2026
Locality: Stevenson-Bennett Mine, Organ Mining District, Organ Mountains, Doña Ana County, New Mexico, USA (See on Mindat)
Size: 28 x 22 x 32 mm

Description:
Fluorescent calcite and willemite from the Stevenson-Bennett Mine, Organ Mts, Doña Ana Co., New Mexico. Under short wave UV the calcite fluoresces bright orange/red and the willemite green.

The Stevenson-Bennett is a former lead-silver mine located northeast of Las Cruces, New Mexico.

Originally posted by Chris Clemens on Nature's Rainbows in 2017.

Fluorescence under shortwave UV light.
Fluorescence under shortwave UV light.
Normal light.
Normal light.

Summary of luminescence responses:

Calcite (Mindat) (RRUFF)

  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Red
Willemite (Mindat) (RRUFF)
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Green

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