From Wiktionary, the free dictionary
From Hamberg + -ite, after Axel Hamberg (1863-1933), Swedish mineralogist and geographer.
hambergite
- (mineralogy) An orthorhombic-dipyramidal mineral containing beryllium, boron, hydrogen, and oxygen.
- David Barthelmy (1997–2025) “Hambergite”, in Webmineral Mineralogy Database.