Answer: silica

AnswerCrossword Clue
SILICAAgate mineral
SILICAMineral in quartz
SILICAFlint is a form of it
SILICAIngredient in ceramics
SILICAFlint, e.g.
SILICASand component
SILICAStuff in those packets you're not supposed to eat
SILICASand stuff
SILICAStuff in sand or quartz
SILICAIt's used in making glass
SILICASand or quartz
SILICASand, basically
SILICAMaterial for ceramics
SILICAGlassy mineral found in sand
SILICASand basically
SILICAGlassmaker's substance
SILICAIt's in the sand
SILICAQuartz or flint
SILICAGlassmaker's need
SILICAOpal, essentially
silicasilicon dioxide, appearing as quartz, sand, flint, etc.
silicaa form of silicon, also SILEX
silicathe dioxide of silicon SiO2 occurring in crystalline, amorphous, and impure forms (as in quartz, opal, and sand respectively)
SILICAGlass-maker's powder
SILICAGlass ingredient
SILICAQuartz component
SILICAComponent in glass
SILICAMineral used in glassmaking
SILICAQuartz compound
SILICAGlassmaker's material
SILICADehumidifying gel
SILICAGlass component
SILICAQuartz material
SILICAQuartz sand
SILICADesiccant gel
SILICAKind of gel
SILICASand, essentially
SILICAGlassmaker's raw material
SILICACement ingredient
SILICAQuartz.