Dims: 3.0" x 1.8" x 1.8" (7.6 x 4.6 x 4.6 cm)
Wt: 2.59 oz. (73.5 g)
Mina Aurora, Charcas, San Luis Potosi, Mexico
It would appear that the large Danburite crystal in this specimen started its growth as a single crystal, then split near its top to form two intergrown but distinctly separate terminations. The crystal itself is large, measuring 2.9 x 1.0 x 0.7" (7.4 x 2.5 x 1.8 cm), and in excellent condition, showing no human-induced damage. Its orthorombic prismatic form is also very good, with the only conceivable "flaw" being the split termination. It is nearly colorless, with a faint pinkish tinge, and has a rather staid vitreous luster. It is transparent, but countless internal fractures destroy its clarity. A large portion of its surface is covered with gray-white calcite growths, mixed with pale pyrite. The growths are composed of many small, intergrown scalenohedral "dogtooth" crystals that are aligned with each other so as to create several larger "composite crystals". It is a really neat specimen!