Ludwigite typically occurs in magnesian iron skarn and other high temperature contact metamorphic deposits.

It occurs in association with magnetite, forsterite, clinohumite and the borates vonsenite and szaibelyite.

[3] It forms a solid solution series with the iron(II)-iron(III) borate mineral vonsenite.

[2] It was first described in 1874 for an occurrence in Ocna de Fier, Banat Mountains, Caraș-Severin County, Romania and named for Ernst Ludwig (1842–1915), an Austrian chemist at the University of Vienna.

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