April 2024 – danburite

For the month of April 2024, we have chosen a rather rare mineral: Danburite. This mineral was named after the town of Danbury in Connecticut. Danburite belongs to the group of framework silicates and – which is not very common – incorporates the element boron.

Like most boron-containing minerals, danburite occurs in pegmatites. These rocks are formed from the residual melts that remain after the crystallization of granite. This residual melt contains an above-average amount of boron, which is then incorporated into minerals such as danburite.

Charcas, Mexico

12 x 16 x 13.8 cm

1651 g