Rock Identifier

Category

Sedimentary (Formed From Silica Deposits)

Browse sedimentary (formed from silica deposits) specimens identified by the Rock Identifier community.

Learn about Sedimentary (Formed From Silica Deposits) in the encyclopedia

Geyserite

Quartzite Sandstone

Quartzite Sandstone

Turbidite

Kambaba Jasper

Tripolite

Sinter

Ignimbrite

Loess

Quartzite

Chert

Coal

Silcrete

Chert / Flint (Silicon Dioxide (SiO2)) — sedimentary

Chert / Flint

Silicon Dioxide (SiO2)

Yellow Jasper (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Jasper (Silicon dioxide (SiO2) with impurities) — sedimentary

Jasper

Silicon dioxide (SiO2) with impurities

Banded chert (possibly flint) (Microcrystalline quartz (SiO₂), chiefly chalcedony and quartz) — sedimentary

Banded chert (possibly flint)

Microcrystalline quartz (SiO₂), chiefly chalcedony and quartz

Red Jasper (Jasper (Silicon Dioxide, SiO2)) — sedimentary

Red Jasper

Jasper (Silicon Dioxide, SiO2)

Petrified Wood (Silicified Wood (SiO2)) — fossil

Petrified Wood

Silicified Wood (SiO2)

Quartz (Smoky Quartz / Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Quartz (Smoky Quartz / Chalcedony)

Silicon Dioxide (SiO2)

Carnelian (Chalcedony (SiO2) with Iron Oxide inclusions) — mineral

Carnelian

Chalcedony (SiO2) with Iron Oxide inclusions

Jasper (Silicon Dioxide (SiO2) with impurities) — sedimentary

Jasper

Silicon Dioxide (SiO2) with impurities

Rounded quartz-rich river pebble (Likely quartzite or quartz-rich sandstone; predominantly SiO₂) — sedimentary

Rounded quartz-rich river pebble

Likely quartzite or quartz-rich sandstone; predominantly SiO₂

Clear Quartz (Crystalline Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Crystalline Silicon Dioxide (SiO2)

Iron-rich jasper or hematite-bearing chert (Microcrystalline quartz (SiO₂) with hematite/goethite (Fe₂O₃/FeO(OH))) — sedimentary

Iron-rich jasper or hematite-bearing chert

Microcrystalline quartz (SiO₂) with hematite/goethite (Fe₂O₃/FeO(OH))

Jasper (specifically Green Jasper/Chert) (Jasper (Silicon Dioxide, SiO2)) — sedimentary

Jasper (specifically Green Jasper/Chert)

Jasper (Silicon Dioxide, SiO2)

Chert (Jasper/Flint variant) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (Jasper/Flint variant)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

White Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

White Quartz Pebble

Silicon Dioxide (SiO2)

Jasper and Quartz conglomerate (Silicon Dioxide (SiO2) with iron oxide impurities) — sedimentary

Jasper and Quartz conglomerate

Silicon Dioxide (SiO2) with iron oxide impurities

Iron-rich sandstone or weathered laterite (Ferruginous sandstone; commonly quartz-rich sandstone cemented by iron oxides (hematite/goethite)) — sedimentary

Iron-rich sandstone or weathered laterite

Ferruginous sandstone; commonly quartz-rich sandstone cemented by iron oxides (hematite/goethite)

Precious Opal (Hydrated amorphous silica (SiO2·nH2O)) — mineral

Precious Opal

Hydrated amorphous silica (SiO2·nH2O)

Quartz (Iron-stained) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Fossilized Bone Fragment (Vertebrate Fossil Material (Apatite/Calcium Phosphate)) — fossil

Fossilized Bone Fragment

Vertebrate Fossil Material (Apatite/Calcium Phosphate)

Brecciated Chert (Silicon Dioxide (SiO2)) — sedimentary

Brecciated Chert

Silicon Dioxide (SiO2)

Puddingstone (Quartzite Pebble) (Metaconglomerate / Jasper-Quartzite Pebble) — sedimentary

Puddingstone (Quartzite Pebble)

Metaconglomerate / Jasper-Quartzite Pebble

Red Chert (Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Red Chert (Jasper)

Microcrystalline Quartz (SiO2)

Jasper (SiO2) — sedimentary

Jasper

SiO2

Carnelian Agate (SiO2 (Silicon Dioxide)) — mineral

Carnelian Agate

SiO2 (Silicon Dioxide)

Red Jasper (Silicon Dioxide (SiO2 with Hematite inclusions)) — sedimentary

Red Jasper

Silicon Dioxide (SiO2 with Hematite inclusions)

Red Jasper (Red Jasper (Silicon Dioxide - SiO2)) — sedimentary

Red Jasper

Red Jasper (Silicon Dioxide - SiO2)

Carnelian (Silicon Dioxide (SiO2)) — gemstone

Carnelian

Silicon Dioxide (SiO2)

Red Chert (Jasper) (Cryptocrystalline Quartz (SiO2) with iron oxide inclusions) — sedimentary

Red Chert (Jasper)

Cryptocrystalline Quartz (SiO2) with iron oxide inclusions

Jasper (Microcrystalline quartz (SiO2)) — sedimentary

Jasper

Microcrystalline quartz (SiO2)

White Quartz (Milky Quartz) (Quartz (Silicon Dioxide - SiO2)) — mineral

White Quartz (Milky Quartz)

Quartz (Silicon Dioxide - SiO2)

Chert Nodule (Microcrystalline Quartz) — sedimentary

Chert Nodule

Microcrystalline Quartz

Chert (Yellow Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Yellow Jasper)

Microcrystalline Quartz (SiO2)

Jasper with Quartz Vein (Microcrystalline quartz (SiO2) with impurities) — sedimentary

Jasper with Quartz Vein

Microcrystalline quartz (SiO2) with impurities

Agate (Chalcedony Pebble) (Silicon Dioxide (SiO2)) — sedimentary

Agate (Chalcedony Pebble)

Silicon Dioxide (SiO2)

Chert (or Flint) (Chert (SiO2)) — sedimentary

Chert (or Flint)

Chert (SiO2)

Chert / Flint Nodule (Microcrystalline quartz (SiO2)) — sedimentary

Chert / Flint Nodule

Microcrystalline quartz (SiO2)

Jasper (Silicon Dioxide (Microcrystalline Quartz / Chalcedony)) — sedimentary

Jasper

Silicon Dioxide (Microcrystalline Quartz / Chalcedony)

Carnelian Bead (Silicon Dioxide (Chalcedony variety), SiO2) — gemstone

Carnelian Bead

Silicon Dioxide (Chalcedony variety), SiO2

Chert (Chert (SiO2)) — sedimentary

Chert

Chert (SiO2)

Red Jasper (Silicon Dioxide (SiO2) with hematite inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with hematite inclusions

Jasper (Jasper (Silicon Dioxide, SiO2)) — sedimentary

Jasper

Jasper (Silicon Dioxide, SiO2)