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!

Marialite (Scapolite series), Phlogopite, Calcite, Diopside, and Afghanite - Four Saturated Colors - Afghanistan

Contributed by: Mark Cole
Date: Apr 6th, 2026
Locality: Sar-e-Sang, Kuran wa Munjan District, Badakhshan, Afghanistan (See on Mindat)
Size: 2 x 2 x 3 inches
Weight: 7.2 oz

Description:
Marialite is the sodium-rich variety of Scapolite and is the ID of most of the Scapolite found in Badakhshan, Afghanistan. The bright yellow fluorescence of the marialite crystals are backed by bright butterscotch crystals of phlogopite, red fluorescing calcite, blue/white fluorescing diopside, and orange fluorescing afghanite. The photo below was taken under "Fullwave UV" - SW, MW, and LW. Each mineral responds best to certain wavelengths (see the rest of the pictures in the gallery below). Some react with different colors depending on the wavelength.

Originally posted by Mark Cole on Nature's Rainbows in 2016.

Fluorescence under fullwave (LW + MW + SW) UV light.
Fluorescence under fullwave (LW + MW + SW) UV light.
Fluorescence under longwave UV light.
Fluorescence under longwave UV light.
Fluorescence under midwave UV light.
Fluorescence under midwave UV light.
Fluorescence under shortwave UV light.
Fluorescence under shortwave UV light.
Normal light.
Normal light.

Summary of luminescence responses:

Marialite (Mindat) (RRUFF)

  • Fluorescence under Longwave (365nm LED) UV light: Yellow
  • Fluorescence under Midwave (305nm Lamp/Mercury) UV light: Yellow
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Yellow
Calcite (Mindat) (RRUFF)
  • Fluorescence under Midwave (305nm Lamp/Mercury) UV light: Red
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Red
Diopside (Mindat) (RRUFF)
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: White
Phlogopite (Mindat) (RRUFF)
  • Fluorescence under Midwave (305nm Lamp/Mercury) UV light: Orange
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Yellow
Afghanite (Mindat) (RRUFF)
  • Fluorescence under Longwave (365nm LED) UV light: Orange