Dims: 2.3 x 1.4 x 1.3" (5.8 x 3.6 x 3.3 cm)
Wt: 1.77 oz. (50.2 g)
Mount Saint Hilaire, Quebec, Canada
Several definite Eudialyte crystals rest on the dappled white host rock of this large thumbnail specimen. These crystals are quite small, not exceeding 0.3" (8 mm) along any axis, and most appear to be damaged or even broken. Those that are intact, however, have excellent trigonal prismatic form with triangular cross-sections (one or two appear to have hexagonal cross-sections). Their edges are generally well-defined, and their faces are clean and possess a vitreous luster. All have a deep wine-red coloration with a hint of brown that resembles that of many garnets. Most are at least dimly translucent, and a few are likely partly transparent. The Eudialytes line a hollow in the host rock, and are accompanied by a white mineral that appears to have a pseudohexagonal form- I cannot identify it, however. The rock in which they rest strongly resembles a syenite, but I cannot define it exactly.