This danburite is from Charcas, Mun. de Charcas, San Luis Potosi, Mexico. Mining of the ore bodies in this area began in 1583. The ore bodies contained sulfides of silver, lead and zinc along with other accessory minerals. One of the most famous of these minerals is the outstanding examples of danburite found there. They contain the elements Ca, B, Si, and O. This is a trio of parallel, or “Tantric” as some people call them, crystals that are translucent to transparent and have a light pink color. The luster is glass like. This specimen measures 2 x 13/16 x 7/16 inches or 50 x 21 x 11 mm.