Siliceous rock | Igneous, Sedimentary, Metamorphic | Britannica Siliceous rock, any of a group of sedimentary rocks that consist largely or almost entirely of silicon dioxide (SiO2), either as quartz or as amorphous silica and cristobalite; included are rocks that have formed as chemical precipitates and excluded are those of detrital or fragmental origin
7. 2: Siliceous Sedimentary Rocks - Geosciences LibreTexts As the name implies, siliceous sedimentary rocks are enriched in silica We will avoid the numerous mineral and gem names applied to siliceous material (jasper, flint, agate, chalcedony, opal, etc ) and instead use the terms microcrystalline quartz or chert to refer to any all of them
Siliceous rock - Wikipedia Siliceous rocks are sedimentary rocks that have silica (SiO 2) as the principal constituent The most common siliceous rock is chert; other types include diatomite
Siliceous - definition of siliceous by The Free Dictionary Define siliceous siliceous synonyms, siliceous pronunciation, siliceous translation, English dictionary definition of siliceous adj Containing, resembling, relating to, or consisting of silica
siliceous - Wiktionary, the free dictionary siliceous (comparative more siliceous, superlative most siliceous) (geology) Comprised of biogenic silicate minerals Contrasted with the inorganic term siliciclastic