eyselite

== English == === Etymology === Named after German professor of crystallography at Ruprecht-Karls-Universität, Germany, Walter Hans Eysel (1935–1999), +‎ -ite. === Noun === eyselite (mineralogy) An orthorhombic mineral containing gallium, germanium, hydrogen, iron, and oxygen. === Further reading === David Barthelmy (1997–2026), “Eyselite”, in Webmineral Mineralogy Database. “eyselite”, in Mindat.org‎[1], Hudson Institute of Mineralogy, 2000–2026.