ˈbākəˌrīt noun
( -s )
Etymology: R.C. Baker, 20th century Englishman, its discoverer + English -ite
: a variety of the mineral datolite occurring in white fine-grained masses resembling marble, containing boron in place of some of the silicon, and having the probable formula CaB 4 (BO 4 )(SiO 4 ) 3 (OH) 3 .H 2 O (hardness 4.5)