Dims: 1.1 x 1.0 x 0.9" (2.8 x 2.6 x 2.2 cm)
Wt: 0.6 oz. (18 g) w/ base
Mount Saint Hilaire, Quebec, Canada
Several well-formed Arfvedsonite crystals rest on the pegmatite base of this thumbnail piece. These crystals reach lengths of nearly 0.4" (1 cm) and are generally in excellent condition. Their monoclinic prismatic form is also excellent, and all have a black color and a pearly-to-vitreous luster. They rest among a cluster of tiny, thin apophyllites and some tabular crystals that I cannot identify- they could be a rare form of apophyllite. The specimen is hot-glued to a flat acrylic base.