Agrellite and Albite from the Kipawa alkaline complex, Canada

Contributed by: Simone Conti
minID: PPG-8F0
Date: Jul 5th, 2026
Locality: Kipawa alkaline complex, Les Lacs-du-Témiscamingue, Témiscamingue RCM, Abitibi-Témiscamingue, Québec, Canada (See on Mindat)
Size: 6 x 4 x 9.5 cm
Weight: 254.4 g

Description:
Agrellite with albite and a black amphibole. The agrellite shows its typical pink fluorescence under mid and shortwave UV, a weak orange response under longwave, and orange afterglow after midwave exposure. The albite fluoresces dull red under shortwave, and a surprising white under mid and longwave. Shortwave UV also shows some green fluorescence from uranyl impurities.

Normal light.

Fluorescence under shortwave UV light.

Fluorescence under midwave UV light.

Fluorescence under longwave UV light.

Afterglow after exposure to longwave UV light.

Summary of luminescence responses:

Agrellite (Mindat) (RRUFF)

• Fluorescence under Midwave (305nm Lamp/Mercury) UV light: Pink
• Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Pink
• Fluorescence under Longwave (365nm LED) UV light: Orange
• Afterglow after exposure to Longwave (365nm LED) UV light: Orange

• Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Red
• Fluorescence under Longwave (365nm LED) UV light: White