Carletonite is one of the most desired of Canadian minerals and it is incredibly rare, it ONLY occurs at Mt St. Hillaire which is also the type locality. This is an even more rare cabinet specimen with great esthetics. None has been found for years, and the original find was mostly thumbnail sized crystals or larger cleavage pieces. There were never many cabinet sized specimens and these are now only very rarely for sale. This has crystals to 3 CM (huge for the specie) with rich color and some distinct zoning. The condition is quite good with the typically crude cubes nicely contrasting with the matrix. For any good collection this is a very eyecatching specimen of a significant, rare mineral.