Webster's 1828 Dictionary
ALLANITE
n.A mineral named from Mr. Allan, of Edinburg, who first recognized it as a distinct species. It is massive, of a brownish black color, and conchoidal fracture. A siliceous oxyd of cerium.
Webster's 1913 Dictionary
ALLANITE
Al "lan *ite, n. Etym: [From T. Allan, who first distinguished it as a species. ] (min. )
Defn: A silicate containing a large amount of cerium. It is usually black in color, opaque, and is related to epidote in form and composition.
New American Oxford Dictionary
allanite
allanite |ˈalənʌɪt | ▶noun [ mass noun ] a brownish-black mineral of the epidote group, consisting of a silicate of rare earth metals, aluminium, and iron. ORIGIN early 19th cent.: named after Thomas Allan (1777 –1833 ), Scottish mineralogist, + -ite 1 .
Oxford Dictionary
allanite
allanite |ˈalənʌɪt | ▶noun [ mass noun ] a brownish-black mineral of the epidote group, consisting of a silicate of rare earth metals, aluminium, and iron. ORIGIN early 19th cent.: named after Thomas Allan (1777 –1833 ), Scottish mineralogist, + -ite 1 .
The Wordsmith Dictionary