Dims:4.0x1.9x1.4" (10.1x4.8x3.6 cm)
Wt: 6.6oz. (188g)
Charcas, San Luis Potosi, Mexico
This is a large well-formed crystal of the mineral danburite. The crystal shows a moderate amount of internal fracturing. I believe that some of this fracturing was caused by the removal of other crystals growing near this one-damage on the prism faces of this crystal was undoubtedly caused by this. The tip of this crystal shows some transparency, and sports an excellent termination. Tiny black crystalline inclusions in the base and back of this specimen appear to be hornblende.