-rīt noun
( -s )
Etymology: Leonard J. Spencer died 1959 English mineralogist + English -ite
: a mineral Zn 4 (PO 4 ) 2 (OH) 2 .3H 2 O consisting of a hydrous basic zinc phosphate occurring in pearly white scaly masses and small monoclinic crystals (hardness 2.7, specific gravity 3.1)