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!

Creedite sphere

Contributed by: Axel Emmermann
minID:
Date: Jan 24th, 2025
Locality: Durango, Mexico (See on Mindat)

Description:
Creedite, Durango, Mexico. Probably but not confirmed from the Navidad Mine. This specimen cost me the princely sum of US$ 3.00. It\'s a perfectly undamaged creedite sphere of about 6 mm in diameter. The creedite, sitting on quartz, fluoresces a beautiful blue in SW and MW UV. The photo\'s are stacks of 40 images, taken in halogen light and MW-UV.

Fluorescence under midwave UV light.
Fluorescence under midwave UV light.
Normal light.
Normal light.

Summary of luminescence responses:

Creedite

  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Blue
  • Fluorescence under Midwave (305nm Lamp/Mercury) UV light: Blue

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