Rock Identifier

Category

Sedimentary (Cryptocrystalline Silica)

Browse sedimentary (cryptocrystalline silica) specimens identified by the Rock Identifier community.

Learn about Sedimentary (Cryptocrystalline Silica) in the encyclopedia

Quartzite Sandstone

Quartzite Sandstone

Tripolite

Chert

Kambaba Jasper

Tintenbar Opal

Diatomite

Ironstone

Landscape Agate

Landscape Agate

Tube Agate

Sweetwater Agate

Sweetwater Agate

Frost Agate

Coldwater Agate

Chert (with Limestone/Carbonate matrix) (Sedimentary cryptocrystalline silica (SiO2)) — sedimentary

Chert (with Limestone/Carbonate matrix)

Sedimentary cryptocrystalline silica (SiO2)

Handaxe with Inlaid Fossil Echinoid (Flint / Chert (SiO2) containing a fossil Conulus albogalerus) — sedimentary (cryptocrystalline silica)

Handaxe with Inlaid Fossil Echinoid

Flint / Chert (SiO2) containing a fossil Conulus albogalerus

sedimentary (cryptocrystalline silica)

Agate (Silicon dioxide (Chalcedony), SiO2) — gemstone

Agate

Silicon dioxide (Chalcedony), SiO2

Jasper (SiO2) — Sedimentary

Jasper

SiO2

Chert (Common Opal/Chalcedony variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Common Opal/Chalcedony variety)

Microcrystalline Quartz (SiO2)

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

Chalcedony (Agate / Chert)

Silicon Dioxide (SiO2)

Carnelian (Carnelian (SiO2)) — mineral

Carnelian

Carnelian (SiO2)

Chalcedony (Agate/Jasper Nodule) (Silicon Dioxide (SiO2)) — sedimentary

Chalcedony (Agate/Jasper Nodule)

Silicon Dioxide (SiO2)

Chert / Flint (Arrowhead Artifact) (Microcrystalline quartz (SiO2)) — sedimentary

Chert / Flint (Arrowhead Artifact)

Microcrystalline quartz (SiO2)

Chalcedony (Chalcedony (SiO2)) — mineral

Chalcedony

Chalcedony (SiO2)

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

Quartz (Chalcedony)

Silicon Dioxide (SiO2)

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

Chert (Likely Jasper)

Microcrystalline Quartz (SiO2)

Carnelian Agate (Silicon Dioxide (SiO2) with iron oxide inclusions) — mineral

Carnelian Agate

Silicon Dioxide (SiO2) with iron oxide inclusions

Chalcedony (Chalcedony (SiO2)) — mineral

Chalcedony

Chalcedony (SiO2)

Chalcedony (Agate) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chalcedony (Agate)

Cryptocrystalline Quartz (SiO2)

Chalcedony (Chalcedony (SiO2)) — mineral

Chalcedony

Chalcedony (SiO2)

Chalcedony (Common Opal variant) (Silicon dioxide (SiO2) with microcrystalline structure) — mineral

Chalcedony (Common Opal variant)

Silicon dioxide (SiO2) with microcrystalline structure

Chalcedony/Agate (Cryptocrystalline Silica (SiO2)) — mineral

Chalcedony/Agate

Cryptocrystalline Silica (SiO2)

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

Chert (Jasper)

Silicon Dioxide (SiO2)

Yellow Chalcedony (Silicon Dioxide (SiO2) - Chalcedony) — mineral

Yellow Chalcedony

Silicon Dioxide (SiO2) - Chalcedony

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

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Chalcedony (Agate/Carnelian variety) (Cryptocrystalline Quartz (SiO2)) — mineral

Chalcedony (Agate/Carnelian variety)

Cryptocrystalline Quartz (SiO2)

Carnelian (Carnelian (Silicon Dioxide, SiO2)) — mineral

Carnelian

Carnelian (Silicon Dioxide, SiO2)

Chalcedony (Tumbled) (Cryptocrystalline Quartz (SiO2)) — mineral

Chalcedony (Tumbled)

Cryptocrystalline Quartz (SiO2)

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

Chalcedony Geode Fragment

Silicon Dioxide (SiO2)

Chalcedony (Quartz Pebbles) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Quartz Pebbles)

Silicon Dioxide (SiO2)

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

Chert / Flint Arrowheads

Cryptocrystalline Quartz (SiO2)

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

Chalcedony Geode Fragment

Silicon Dioxide (SiO2)

Botryoidal Chalcedony (Silicon Dioxide (SiO2)) — mineral

Botryoidal Chalcedony

Silicon Dioxide (SiO2)

Chalcedony (Quartz Var.) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Quartz Var.)

Silicon Dioxide (SiO2)

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

Chalcedony (Agate/Carnelian)

Silicon Dioxide (SiO2)

Yellow Chalcedony (Agate/Chert) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — sedimentary

Yellow Chalcedony (Agate/Chert)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

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

Chalcedony (Quartz)

Silicon Dioxide (SiO2)

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

Chalcedony (Agate)

Silicon Dioxide (SiO2)

Chert with Limestone (Microcrystalline Quartz (SiO2) in Calcium Carbonate (CaCO3) matrix) — sedimentary

Chert with Limestone

Microcrystalline Quartz (SiO2) in Calcium Carbonate (CaCO3) matrix

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

Chert / Quartzite

Silicon Dioxide (SiO2)

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

Chalcedony (Agate/Chert variety)

Silicon Dioxide (SiO2)

Chalcedony (Common Opal variant or Quartz) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Common Opal variant or Quartz)

Silicon Dioxide (SiO2)

Chert (Flint Nodules) (Sedimentary cryptocrystalline quartz (SiO2)) — sedimentary

Chert (Flint Nodules)

Sedimentary cryptocrystalline quartz (SiO2)

Chalcedony Geode Part (Agate/Quartz) (Silicon Dioxide (SiO2)) — mineral

Chalcedony Geode Part (Agate/Quartz)

Silicon Dioxide (SiO2)

Mixed collection of minerals and rocks (Jasper, Carnelian, Granite, and Quartz) (Silicon Dioxide (SiO2) with varying impurities for silicates and igneous aggregates) — igneous, sedimentary, and metamorphic

Mixed collection of minerals and rocks (Jasper, Carnelian, Granite, and Quartz)

Silicon Dioxide (SiO2) with varying impurities for silicates and igneous aggregates

igneous, sedimentary, and metamorphic

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

Chert (Jasper/Opaline variety)

Silicon Dioxide (SiO2)