The story
From Holden + -ite after Albert Fairchild Holden (1866-1913), a mining engineer from Salt Lake City, Utah, USA.
Etymology from Wiktionary, CC BY-SA 4.0.
holdenite
Today it means: An orthorhombic-dipyramidal mineral containing arsenic, hydrogen, magnesium, manganese, oxygen, silicon, and zinc. Full definition →