Danburite is calcium boron silicate, a crystalline mineral similar to topaz. Danburite, is a relatively new gemstone discovered in 1839 in Danbury, Fairfield County, Connecticut, USA. The original deposit is now buried under the city of Danbury. Color is almost always clear or white, but also can be shades of yellow, pink or brown. Its diamond-shaped cross-section and wedge like termination is a contrast to quartz's hexagonal prisms and pyramidal terminations.
Danburite's environment is associated with contact metamorphic rocks. Most specimens available are from Mexico. It is hard to find a good cluster of Danburite. Usually we see them as single crystals, and occasionally as large clusters.
Item # DB09121083
Calcite and Drusi Quartz on Danburite with Chalcopyrite
Stunning Danburite cluster is quite aesthetic as the crystals shoot off in many directions. Near the base of the crystals are reflective Chalcopyrites, which also show on the bottom of the piece. The Danburite crystals are covered with a combination of drusi quartz, small quartz crystals and calcite crystals. Danburite is found in Charcas, San Luis Potosi, Mexico. This specimen was procured from the Smithsonian Museum Mineral and Gem Shop. This Danburite piece glows orangish-purple fluorescence under MWUV light
This specimen measures 4.8 x 3.8 x 2.7 inches (12.3 x 9.8 x 6.8cm) and weighs 23.1oz or 1.44 lbs (655g)