Sodalite var. Hackmanite and Gem Phlogopite - Afghanistan
Contributed by: Mark Cole
Date: Apr 12th, 2026
Locality: Sar-e-Sang, Kuran wa Munjan District, Badakhshan, Afghanistan (See on Mindat)
Size: 4 x 2 x 4.5 inches
Weight: 1.75 lb
Description:
The first picture shows this specimen under shortwave UV, while the 2nd picture shows the longwave view. The gallery provides other views and closeups.
The phlogopite is quite gemmy on this piece and bright under shortwave. The sodalite crystal is very phosphorescent and weakly tenebrescent.
Originally posted by Mark Cole on Nature's Rainbows in 2017.
Summary of luminescence responses:
Hackmanite (Mindat) (RRUFF)
- Fluorescence under Longwave (365nm LED) UV light: Orange
- Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: White
- Afterglow after exposure to Shortwave (254nm Lamp/Mercury) UV light: White
- Tenebrescence after exposure to Shortwave (254nm Lamp/Mercury) UV light: Purple
- Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Yellow