Bromellite, whose name derives from the Swedish chemist Magnus von Bromell (1670–1731), is a white oxide mineral.

The mineral form of beryllium oxide, it is found in complex pegmatitic manganese-iron deposits, but is more frequently made synthetically.

This is a rare mineral to encounter in its natural state, but it has been made synthetically for over 40 years.

Ceramics containing bromellite are used in electronics, as well as crucibles for the melting of uranium and thorium.

Bromellite, both natural and synthetic, is also used as a gemstone or as a collector's mineral.