The Collaborative International Dictionary
Elaeolite
Elaeolite \E*l[ae]"o*lite\, n. [Gr. ? olive oil, oil + -lite.] (Min.) A variety of hephelite, usually massive, of greasy luster, and gray to reddish color.
El[ae]olite syenite, a kind of syenite characterized by the presence of el[ae]olite.
Wiktionary
elaeolite
n. (context mineral English) A variety of hephelite, usually massive and of a greasy lustre and grey to reddish colour.