noun
also ura·no·sphe·rite ˌyu̇rənōˈsfiˌrīt
( -s )
Etymology: German uranosphaerit, from uran- (II) + sphaer- + -it -ite
: a mineral (BiO) 2 U 2 O 7 .3H 2 O that is a hydrous bismuth uranate and occurs in orange-yellow to brick-red half-globular aggregates