LESSINGITE

ˈlesiŋˌīt noun

( -s )

Etymology: Russian lessingit, from Frantz Yulievich Levinson- Lessing, 20th century Russ. professor + Russian -it -ite

: a mineral Ca 2 Ce 4 Si 3 O 13 (OH) 2 (?) consisting of a silicate of calcium and cerium