sə̇ˌrülē(ˌ)ōˈlakˌtīt noun
( -s )
Etymology: coeruleo- (from Latin coeruleus, caeruleus cerulean) + -lactite, from Latin lact-, lac milk + English -ite — more at cerulean , galaxy
: a mineral consisting of an aluminum phosphate Al 3 (PO 4 ) 2 (OH) 3 .4H 2 0 of a milk-white to sky-blue color