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!

Adamite, Ojuela Mine, Mapimi, Mexico

Contributed by: Chris Clemens
minID: 4DH-RHN
Date: Apr 24th, 2026
Locality: Ojuela Mine, Mapimí, Mapimí Municipality, Durango, Mexico (See on Mindat)
Size: 40 x 23 x 48 mm

Description:
This is an exceptionally bright fluorescent adamite specimen from the Ojuela Mine, Mapimi, Durango, Mexico. Under visible light, yellow/green adamite crystals are seen on a contrasting red/brown gossan matrix. This specimen is brightly fluorescent under both shortwave and longwave UV, with the shortwave fluorescence rivaling some of the Franklin willemites.

Adamite is a secondary zinc arsenate hydroxide found in zinc ore deposits containing arsenic-bearing minerals.

Originally posted by Chris Clemens on Nature's Rainbows in 2016.

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

Summary of luminescence responses:

Adamite (Mindat) (RRUFF)

  • Fluorescence under Longwave (365nm LED) UV light: Green
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Green

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