pickeringite

[ pik-er-ing-ahyt, pik-ring- ]
/ ˈpɪk ər ɪŋˌaɪt, ˈpɪk rɪŋ- /

noun

a mineral, magnesia alum, occurring usually in the form of white fibrous masses.

Origin of pickeringite

1835–45; named after John Pickering (1777–1846), American linguist; see -ite1