Allanite - Parham Prospect, Parham, Ontario, Canada

(A1²⁺REE³⁺)(M1³⁺M2³⁺M3²⁺)O[Si₂O₇][SiO₄](OH)

Allanite from the Parham Prospect, located in Parham, Ontario, is a fascinating example of this rare-earth-bearing mineral, known for its high concentrations of elements such as cerium, lanthanum, and yttrium. Typically found in metamorphic and igneous environments, Allanite from this locality occurs as dark brown to black prismatic crystals, often embedded within a coarse-grained granitic or pegmatitic matrix. The mineral’s distinct coloration, combined with its slightly resinous to vitreous luster, makes it an intriguing addition to any collection. Due to its thorium content, Allanite from Parham exhibits mild radioactivity, which can be detected using a Geiger counter, adding to its appeal for collectors of radioactive minerals.

The Parham Prospect is part of Ontario’s Grenville geological province, an area well known for its diverse and complex mineralogy. The Allanite from this locality provides insight into the rare-earth element enrichment processes that occurred during the region’s geological history. These specimens are particularly sought after by mineral enthusiasts, not only for their aesthetic qualities but also for their geochemical significance. Whether for display, study, or as part of a comprehensive rare-earth mineral collection, Allanite from the Parham Prospect represents a fine example of Ontario’s mineral wealth.

Approx. specimen size: 50mm x 35mm x 09 mm

Approx. specimen activity on an SE International Ranger EXP: 900 cpm