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!

Willemite, Calcite, and Azurite

Contributed by: Mark Cole
Date: Mar 10th, 2026
Locality: Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA (See on Mindat)
Size: 2.5 x 2 x 3 inches
Weight: 9 oz

Description:
Classic red/green from Sterling Hill, New Jersey with some non-fluorescent azurite. I did not even know azurite was found in this area, but apparently it is relatively common.

Originally posted by Mark Cole on Nature's Rainbows.

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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