hisingerite

== English == === Etymology === From Hisinger +‎ -ite after Wilhelm Hisinger, Swedish chemist. === Noun === hisingerite (countable and uncountable, plural hisingerites) (mineralogy) An iron silicate with a dark-brown or black color, formula Fe3+2Si2O5(OH)4·2H2O. === Further reading === David Barthelmy (1997–2026), “Hisingerite”, in Webmineral Mineralogy Database. “hisingerite”, in Mindat.org‎[1], Hudson Institute of Mineralogy, 2000–2026.