Noun
The recrement of metals in fusion, or the slag rejected after the reduction of metallic ores; dross.
Cellular slaggy lava; volcanic cinders.
Source: Webster's dictionaryNote that one of the moai is adorned with a red scoria pukao. Source: Internet
The Mercer County Commission covered a varied agenda that included road issues, rezoning and the case of the missing scoria at its regular meeting Nov. 2 at the Mercer County Courthouse in Stanton. Source: Internet