Dims: 2.4 x 1.6 x 1.3" (6.1 x 4.0 x 3.3 cm)
Wt: 2.9 oz. (81 g)
Dugannon Township, York River, Canada
At least 12 partial and complete Allanite crystals are embedded in the rusty quartz matrix of this small cabinet piece. Though many of these crystals are broken and incomplete, there are at least 3 that are intact and in very good condition. The largest visible crystal is intact and has dimensions of 1.0 x 0.7 x 0.1" (2.6 x 1.9 x 0.3 cm). All have excellent monoclinic tabular form and the standard black color and dull greasy luster. The crystals contain at least one radioactive element, as they register slightly on my geiger-muller counter.