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!

Dolomite, Calcite - Langban Pole Dump, Langban, Sweden

Contributed by: FMS Admin
minID: L9P-3J9
Date: Feb 21st, 2026
Locality: Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden (See on Mindat)
Size: 5 x 4.8 x 7.6 cm

Description:
An incredibly bright SW combo, the dolomite fluoresces deep red and the calcite red orange. Under LW, the dolomite continues to produce a faint red.

Originally posted by Dennis Michael on Nature's Rainbows.

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:

Calcite (Mindat) (RRUFF)

  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Red
Dolomite (Mindat) (RRUFF)
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Red
  • Fluorescence under Longwave (365nm LED) UV light: Red

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