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, Willemite, Hydrozincite, Powellite, Smithsonite - Miller Canyon, Arizona

Contributed by: FMS Admin
Date: May 4th, 2026
Locality: Nelly James Mine, Miller Canyon, Miller Peak, Cochise County, Arizona, USA (See on Mindat)
Size: 4 inches

Description:
This is the brightest Miller Canyon, Arizona rock that I have. It is also a rare 5 color rock. There is calcite, willemite, hydrozincite, powellite, and smithsonite. Powellite is hard to come by at Miller Canyon. The photos were taken with a 60mm macro lens at F32.

Originally posted by UV Studio 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.
Normal light. Side 2.
Normal light. Side 2.
Fluorescence under shortwave UV light. Side 2
Fluorescence under shortwave UV light. Side 2
Fluorescence under longwave UV light. Side 2.
Fluorescence under longwave UV light. Side 2.

Summary of luminescence responses:

Calcite (Mindat) (RRUFF)

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

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