Rock Identifier

Category

Sedimentary (Silicified Fossiliferous Chalcedony)

Browse sedimentary (silicified fossiliferous chalcedony) specimens identified by the Rock Identifier community.

Learn about Sedimentary (Silicified Fossiliferous Chalcedony) in the encyclopedia

Fossiliferous Limestone

Fossiliferous Limestone

Chalcedony

Chrome Chalcedony

Chrome Chalcedony

Blue Chalcedony

Blue Chalcedony

Silcrete

Opalized Wood

Shelly Limestone

Shelly Limestone

Petrified Wood

Conglomerate

Gem Silica

Mookaite

Chrysoprase

Red jasper fragment (Jasper, microcrystalline quartz (SiO₂) colored chiefly by iron oxides) — mineral

Red jasper fragment

Jasper, microcrystalline quartz (SiO₂) colored chiefly by iron oxides

Carnelian (Carnelian (Cryptocrystalline Quartz, SiO2)) — mineral

Carnelian

Carnelian (Cryptocrystalline Quartz, SiO2)

Jasper (Iron-rich) (Silicon Dioxide (SiO2) with Fe2O3 (Hematite) impurities) — sedimentary

Jasper (Iron-rich)

Silicon Dioxide (SiO2) with Fe2O3 (Hematite) impurities

Quartz Geode / Druzy Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz Geode / Druzy Quartz

Silicon Dioxide (SiO2)

Agate Geode (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — mineral

Agate Geode

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Blue Chalcedony (likely dyed) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — mineral

Blue Chalcedony (likely dyed)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Agate and Jasper (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Agate and Jasper

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Green Jasper / Plasma (Microcrystalline Quartz (Chalcedony), SiO2 with inclusions) — gemstone

Green Jasper / Plasma

Microcrystalline Quartz (Chalcedony), SiO2 with inclusions

Tumbled white chalcedony (likely milky quartz) (Chalcedony, microcrystalline SiO₂; possibly milky quartz) — mineral

Tumbled white chalcedony (likely milky quartz)

Chalcedony, microcrystalline SiO₂; possibly milky quartz

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

Yellow Jasper (Chert)

Silicon Dioxide (SiO2)

Jasper (Silicon Dioxide (SiO2) - Opaque Chalcedony) — sedimentary

Jasper

Silicon Dioxide (SiO2) - Opaque Chalcedony

Quartz Geode Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Geode Pebble

Silicon Dioxide (SiO2)

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

Jasper

Jasper (Silicon Dioxide, SiO2)

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

Carnelian

Silicon Dioxide (Chalcedony variety), SiO2

Agate Geode (Silicon Dioxide (SiO2) - Chalcedony variety) — sedimentary

Agate Geode

Silicon Dioxide (SiO2) - Chalcedony variety

Carnelian Agate (Silicon Dioxide (SiO2) - variety of Chalcedony) — mineral

Carnelian Agate

Silicon Dioxide (SiO2) - variety of Chalcedony

Carnelian Agate (Chalcedony (SiO2) with iron oxide inclusions) — mineral

Carnelian Agate

Chalcedony (SiO2) with iron oxide inclusions

Red jasper (likely tumbled) (Jasper, microcrystalline quartz/chalcedony (SiO₂), colored mainly by iron oxides) — mineral

Red jasper (likely tumbled)

Jasper, microcrystalline quartz/chalcedony (SiO₂), colored mainly by iron oxides

Jasper with Iron Inclusions (Silicon Dioxide (SiO2) with Hematite/Goethite) — sedimentary

Jasper with Iron Inclusions

Silicon Dioxide (SiO2) with Hematite/Goethite

Fossil Coral (Hexagonaria (Rugose coral) / Rugosa) — fossil

Fossil Coral

Hexagonaria (Rugose coral) / Rugosa

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

Chalcedony (Agate Nodules)

Silicon Dioxide (SiO2)

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

Yellow Chalcedony (Agate)

Silicon Dioxide (SiO2)

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

Chalcedony (Common Agate)

Silicon Dioxide (SiO2)

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

Chalcedony (Common Agate)

Silicon Dioxide (SiO2)

Blue Chalcedony (Chalcedony (a cryptocrystalline variety of Quartz - SiO₂)) — Mineral

Blue Chalcedony

Chalcedony (a cryptocrystalline variety of Quartz - SiO₂)

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

Banded Agate

Chalcedony (Silicon Dioxide, SiO2)

Flint (Silicon dioxide (Microcrystalline quartz, SiO2)) — sedimentary

Flint

Silicon dioxide (Microcrystalline quartz, SiO2)

Jasper (Cryptocrystalline Quartz (SiO2)) — sedimentary

Jasper

Cryptocrystalline Quartz (SiO2)

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

Chalcedony (Agate Pebble)

Silicon Dioxide (SiO2)

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

Quartz (Agate/Chalcedony)

Silicon Dioxide (SiO2)

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

Grey Chalcedony (Agate)

Silicon Dioxide (SiO2)

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

Quartz (Agate/Chalcedony)

Silicon Dioxide (SiO2)

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

Quartz Geode Fragment

Silicon Dioxide (SiO2)

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

Chalcedony (Agate/Chert variety)

Silicon Dioxide (SiO2)

Agate Geode (Silicon Dioxide (SiO2) - Chalcedony variety) — sedimentary

Agate Geode

Silicon Dioxide (SiO2) - Chalcedony variety

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

Jasper

Silicon Dioxide (Microcrystalline Quartz / Chalcedony)

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

Carnelian

Silicon Dioxide (Chalcedony variety), SiO2

Red Jasper with Quartz (Silicon Dioxide (SiO2)) — sedimentary

Red Jasper with Quartz

Silicon Dioxide (SiO2)

Heliotrope (Bloodstone) Sphere (Cryptocrystalline Quartz (SiO2 with Iron Oxide inclusions)) — sedimentary

Heliotrope (Bloodstone) Sphere

Cryptocrystalline Quartz (SiO2 with Iron Oxide inclusions)

Carnelian (Carnelian (a variety of Chalcedony, SiO2)) — Mineral

Carnelian

Carnelian (a variety of Chalcedony, SiO2)

Banded Agate (specifically Carnelian Agate) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — mineral

Banded Agate (specifically Carnelian Agate)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

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

Jasper

Silicon Dioxide (SiO2) with impurities