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!

Svabite and Calcite - Langban, Sweden

Contributed by: Mark Cole
Date: Mar 10th, 2026
Locality: Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden (See on Mindat)
Size: 4 x 2.5 x 5 inches
Weight: 1.64 lb

Description:
One of the most beautiful and striking combinations from the historic Langban complex in Sweden. Both minerals are very bright under shortwave.

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
Svabite (Mindat) (RRUFF)
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Orange

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