Agrellite, Eudialyte

specimen number:
2354200

location:
Kipawa Complex, Les Lacs-Du-Temiscamingue, Quebec, Canada

description:
Classic combination piece for this locality, almost fibrous lustrous colorless cluster of agrellite crystals 3.0 x 3.0 cm in size embedded in a matrix that is rich throughout with purplish red masses of eudialyte.

Located in the Les Lacs-du-Temiscamingue region of Quebec, Canada, the Kipawa Complex is a highly deformed, metamorphosed alkaline intrusion within the Grenville Province that formed during the Proterozoic Era. The complex is celebrated for its unique agpaitic chemistry, where regional metamorphism and metasomatic fluid activity enriched the surrounding syenites and calc-silicate gneisses with incompatible elements like zirconium, yttrium, and rare earth elements. Geological exploration and mineral collecting in the area expanded significantly in the late twentieth century as prospectors and researchers mapped its unique mineralized zones. Kipawa is internationally famous as the type locality for agrellite, a rare white to grey silicate mineral known for its bright ultraviolet fluorescence, which often occurs alongside vibrant pink to cherry-red grains of eudialyte, a complex cyclosilicate mineral cherished by collectors and studied for its rare earth element potential.

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