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!

Barytocalcite, Calcite, Witherite, Fluorite

Contributed by: Mark Cole
Date: Mar 10th, 2026
Locality: Rampgill Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK (See on Mindat)

Description:
From the Rampgill Mine in Cumbria, England. Most of these are from old-time collections, not found today. Beautiful pastel colors - shortwave, midwave and natural shown. iso100, f11, 3 secs

Originally posted by Mark Cole on Nature's Rainbows.

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

Summary of luminescence responses:

Barytocalcite (Mindat) (RRUFF)

  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Pink
  • Fluorescence under Midwave (305nm Lamp/Mercury) UV light: Pink
Calcite (Mindat) (RRUFF)
  • Fluorescence under Midwave (305nm Lamp/Mercury) UV light: Yellow
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: White
Witherite (Mindat) (RRUFF)
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: White
  • Fluorescence under Midwave (305nm Lamp/Mercury) UV light: White

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