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!

Afghanistan Mix - Afghanite, Phlogopite, Calcite, Scapolite, Diopside - Amazing Color

Contributed by: Mark Cole
Date: Apr 9th, 2026
Locality: Sar-e-Sang, Kuran wa Munjan District, Badakhshan, Afghanistan (See on Mindat)
Size: 2 x 1.5 x 2.5 inches
Weight: 6.5 oz

Description:
And the Afghanistan rocks just keep coming! This area will be a prolific source of fluorescent minerals if we can ever get someone with a real UV light exploring the mines.

This piece has afghanite, fluorescent dull orange under LW UV; it seems to have a deep, dark, but saturated blue fluorescence under MW. The matrix is calcite fluorescing orange under MW and SW. A secondary matrix appears to be diopside fluorescing a bright blue/white under SW only. Crystals of bright yellow fluorescing phlogopite dot the diopside matrix while a bright yellow fluorescing scapolite appears at the contact points between the calcite and the diopside.

As in all Afghani pieces, this piece has minerals which each glow best under a different wavelength. Putting them under all three (fullwave) results in the best display (IMHO).

Originally posted by Mark Cole on Nature's Rainbows in 2017.

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

Summary of luminescence responses:

Marialite (Mindat) (RRUFF)

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