Rock Identifier

Category

Sedimentary (Microcrystalline Silicate)

Browse sedimentary (microcrystalline silicate) specimens identified by the Rock Identifier community.

Learn about Sedimentary (Microcrystalline Silicate) in the encyclopedia

Chert

Ironstone

Kambaba Jasper

Quartzite Sandstone

Quartzite Sandstone

Diatomite

Weathered metamorphic rock, likely gneiss or schist (Indeterminate foliated silicate rock; commonly quartz–feldspar–mica assemblage) — metamorphic

Weathered metamorphic rock, likely gneiss or schist

Indeterminate foliated silicate rock; commonly quartz–feldspar–mica assemblage

Chert (Microcrystalline silica (SiO2)) — sedimentary

Chert

Microcrystalline silica (SiO2)

Quartzite (or Chert/Flint gravel) (Quartzite (SiO2 with iron oxide inclusions)) — metamorphic

Quartzite (or Chert/Flint gravel)

Quartzite (SiO2 with iron oxide inclusions)

Agate Geode (Silicon Dioxide (Chalcedony / Quartz), SiO2) — sedimentary

Agate Geode

Silicon Dioxide (Chalcedony / Quartz), SiO2

Flint (Chert (SiO2)) — sedimentary

Flint

Chert (SiO2)

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

Red Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Red Jasper

Microcrystalline Quartz (SiO2)

Limestone (Calcite (CaCO3)) — sedimentary

Limestone

Calcite (CaCO3)

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

Chert / Jasper

Silicon Dioxide (SiO2)

Chert (Flint) (Microcrystalline silica (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline silica (SiO2)

Chert (Agatized/Chalcedony variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Agatized/Chalcedony variety)

Microcrystalline Quartz (SiO2)

Fossiliferous Chert (Silicon Dioxide (SiO2) with fossil inclusions) — sedimentary

Fossiliferous Chert

Silicon Dioxide (SiO2) with fossil inclusions

Quartz with Basalt inclusion (Silicon Dioxide (SiO2) with mafic silicate rock) — igneous and sedimentary/metamorphic mix

Quartz with Basalt inclusion

Silicon Dioxide (SiO2) with mafic silicate rock

igneous and sedimentary/metamorphic mix

Quartz-rich river pebble, likely milky quartz (Milky quartz (SiO₂), possibly a quartzite or quartz-rich silicate pebble) — mineral

Quartz-rich river pebble, likely milky quartz

Milky quartz (SiO₂), possibly a quartzite or quartz-rich silicate pebble

Sandstone / Weathered Chert (Silicon Dioxide (SiO2) / Quartz-rich Clastic Rock) — sedimentary

Sandstone / Weathered Chert

Silicon Dioxide (SiO2) / Quartz-rich Clastic Rock

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Schist (Mica Schist (primarily Muscovite or Biotite sheet silicates)) — metamorphic

Schist

Mica Schist (primarily Muscovite or Biotite sheet silicates)

Jasper Pebble (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper Pebble

Microcrystalline Quartz (SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Chert (specifically Jaspery Chert) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Jaspery Chert)

Microcrystalline Quartz (SiO2)

Quartz (Chert / Agate / Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Quartz (Chert / Agate / Chalcedony)

Silicon Dioxide (SiO2)

Agate (Carnelian / Chalcedony) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — mineral

Agate (Carnelian / Chalcedony)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

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

Chert / Jasper

Microcrystalline Quartz (SiO2)

Green Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Green Chert

Microcrystalline Quartz (SiO2)

Chert Pebble (Microcrystalline silica (SiO2)) — sedimentary

Chert Pebble

Microcrystalline silica (SiO2)

Chert / Flint Handaxe (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert / Flint Handaxe

Cryptocrystalline Quartz (SiO2)

Red Shale (Lutite (primarily composed of Hydrous Aluminum Silicates with Hematite staining)) — sedimentary

Red Shale

Lutite (primarily composed of Hydrous Aluminum Silicates with Hematite staining)

Yellow Chalcedony / Yellow Agate (Silicon Dioxide (SiO2)) — mineral

Yellow Chalcedony / Yellow Agate

Silicon Dioxide (SiO2)

Chert with Quartz Veining (Microcrystalline Silica (SiO2)) — sedimentary

Chert with Quartz Veining

Microcrystalline Silica (SiO2)

Chert (varieties: Flint or Chalcedony) (Microcrystalline silica (SiO2)) — sedimentary

Chert (varieties: Flint or Chalcedony)

Microcrystalline silica (SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Limonite (Iron Ore) (Hydrous Iron Oxide (goethite, lepidocrocite)) — Mineral

Limonite (Iron Ore)

Hydrous Iron Oxide (goethite, lepidocrocite)

Chert (Microcrystalline silica (SiO2)) — sedimentary

Chert

Microcrystalline silica (SiO2)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Quartz Geode Fragment (Silicon Dioxide (SiO2)) — mineral

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Red Jasper (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Quartzite / Iron-stained Chert (Silicon Dioxide (SiO2) with Iron Oxide impurities) — metamorphic

Quartzite / Iron-stained Chert

Silicon Dioxide (SiO2) with Iron Oxide impurities

Jasper (Silicon dioxide (SiO2)) — mineral

Jasper

Silicon dioxide (SiO2)

Banded Chert Pebble (Silicon Dioxide (SiO2)) — sedimentary

Banded Chert Pebble

Silicon Dioxide (SiO2)