#flint a hard kind of stone; a form of silica more opaque than chalcedony
supertype: silica__silicon_oxide__siliconoxide__silicon_dioxide__silicondioxide a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechartelierite
subtype: gunflint the piece of flint that provides the igniting spark in a flintlock weapon
subtype: firestone.flint a piece of flint that is struck to light a fire
subtype: flintstone pebbles of flint used in masonry construction
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