Agrellite and Baratovite from Dara-i-Pioz Massif, Tajikistan
Contributed by: Simone Conti
minID: VFN-CPD
Date: Sep 19th, 2026
Locality: Dara-i-Pioz Massif, Districts of Republican Subordination, Tajikistan (See on Mindat)
Size: 9 x 5 x 11 cm
Weight: 528 g
Description:
A nice specimen of agrellite and baratovite from the second best agrellite locality: the Dara-i-Pioz Massif in Tajikistan. The agrellite shows its typical bright pink fluoresence under shortwave and midwave UV light, best midwave. Longwave excitation does not cause much fluorescence. Exposure to midwave UV also leaves a nice orange afterglow. For a nice contrast, the baratovite plates fluoresce bright blue, and some uranyl impurities green; only shortwave. If you look carefully enough, the agrellite seems to be surrounded by something, perhaps an alteration, which fluoresces a deep violet, and not much orange afterglow.
Summary of luminescence responses:
Agrellite (Mindat) (RRUFF)
- Fluorescence under Midwave (305nm Lamp/Mercury) UV light: Pink
- Afterglow after exposure to Midwave (305nm Lamp/Mercury) UV light: Orange
- Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Blue