siliceous
Containing hard mineral
Siliceous means containing or resembling silica, the compound that forms quartz, sand, and glass.
The term appears in geology and biology: siliceous rocks, siliceous sponges.
Diatoms have siliceous shells.
The word is technical and rarely encountered outside scientific contexts.
Crystalline silicon dioxide
- opalHydrated silica gemstone
- flintSpark-producing sedimentary rock
- chertFine-grained siliceous stone
- diatomiteSediment of diatom remains
agate · jasper · amethyst · geode · lechatelierite · chalcedony · obsidian · quartzite
Glass-like in appearance
- translucentPermitting diffused light passage
- brittleLiable to shatter
- crystallineClear, ordered, brilliant
- glasslikeResembling transparent material
fused · amorphous · molten · clear · smooth · lustrous · shiny · reflective
Determination or abrasive particles
Formed from deposited material
- stratumHorizontal layer of material
- petrologyScientific study of rocks
- mineralogyScience of inorganic solids
- metamorphicUndergoing structural change
ignite · lithic · detrital · clastic · biogenic · precipitated · hydrothermal · concretion
Partial electrical conductor
- microelectronicsTiny circuit component engineering
- refractoryResistant to heat/control
- ceramicsHardened clay objects
- foundryMetal casting facility
filtration · insulation · water glass · aerogel · photovoltaic · crucible
quartz
Crystalline silicon dioxide
diatomite · agate · jasper · amethyst · geode · lechatelierite · chalcedony · obsidian · quartzite · feldspar
vitreous
Glass-like in appearance
- translucentPermitting diffused light passage
- brittleLiable to shatter
- crystallineClear, ordered, brilliant
glasslike · fused · amorphous · molten · clear · smooth · lustrous · shiny · reflective · obsidian
grit
Determination or abrasive particles
- sandpaperAbrasive-coated finishing material
- pumiceLightweight volcanic abrasive
- emeryGranular polishing mineral
scouring · polishing · grinding · sandblast · honing · lapidary
concrete
Solid building mixture
- aggregateCombined sum total
sedimentary
Formed from deposited material
- stratumHorizontal layer of material
- petrologyScientific study of rocks
- mineralogyScience of inorganic solids
metamorphic · ignite · lithic · detrital · clastic · biogenic · precipitated · hydrothermal · concretion · nodular
semiconductor
Partial electrical conductor
- microelectronicsTiny circuit component engineering
- refractoryResistant to heat/control
- ceramicsHardened clay objects
foundry · filtration · insulation · water glass · aerogel · photovoltaic · crucible
siliceouscalcareous
Containingite calcium carbonate chalk
ferruginous · chalky · limy
silica, silicon, silicone, silicate, silicates, silicones, siliconized, silicify