Rock Identifier

Category

Sedimentary (Geologically Classified As A Variety Of Chalcedony

Browse sedimentary (geologically classified as a variety of chalcedony specimens identified by the Rock Identifier community.

Ocean Jasper (Orbicular Jasper) (Silicon Dioxide (SiO2) with various inclusions) — sedimentary (geologically classified as a variety of chalcedony/quartz)

Ocean Jasper (Orbicular Jasper)

Silicon Dioxide (SiO2) with various inclusions

sedimentary (geologically classified as a variety of chalcedony/quartz)

Onyx Marble (Banded Calcite) (Calcite (Calcium Carbonate, CaCO3)) — sedimentary

Onyx Marble (Banded Calcite)

Calcite (Calcium Carbonate, CaCO3)

Chalcedony (Botryoidal or Tumbled) (Chalcedony (SiO₂)) — mineral

Chalcedony (Botryoidal or Tumbled)

Chalcedony (SiO₂)

Banded Calcite (often sold as 'Green Onyx') (Calcite (Calcium Carbonate, CaCO3)) — sedimentary

Banded Calcite (often sold as 'Green Onyx')

Calcite (Calcium Carbonate, CaCO3)

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

Quartz Pebble (Chert/Chalcedony)

Silicon Dioxide (SiO2)

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

Chalcedony Nodule (Carnelian/Agate)

Chalcedony (Silicon Dioxide, SiO2)

Moss Agate (Silicon Dioxide with inclusions (SiO2 + Mn/Fe/Chlorite)) — mineral

Moss Agate

Silicon Dioxide with inclusions (SiO2 + Mn/Fe/Chlorite)

Banded Calcite (often sold as 'Mexican Onyx' or 'Green Onyx') (Calcite (CaCO3)) — sedimentary

Banded Calcite (often sold as 'Mexican Onyx' or 'Green Onyx')

Calcite (CaCO3)

Dalmation Stone (often called Dalmatian Jasper) (Antiperthite-rich Microgranite) — igneous

Dalmation Stone (often called Dalmatian Jasper)

Antiperthite-rich Microgranite

Banded Calcite (Mexican Onyx) (Calcium Carbonate (CaCO3)) — sedimentary

Banded Calcite (Mexican Onyx)

Calcium Carbonate (CaCO3)

Ferruginous Quartz (Iron-stained Quartz) (Silicon Dioxide with Iron Oxide (SiO2 with traces of Fe2O3/FeO(OH))) — mineral

Ferruginous Quartz (Iron-stained Quartz)

Silicon Dioxide with Iron Oxide (SiO2 with traces of Fe2O3/FeO(OH))

Diorite (Dalmatian Stone) (Phaneritic Plutonic Diorite) — igneous

Diorite (Dalmatian Stone)

Phaneritic Plutonic Diorite

Green Onyx (Banded Calcite) (Travertine (CaCO3 - Calcium Carbonate)) — sedimentary

Green Onyx (Banded Calcite)

Travertine (CaCO3 - Calcium Carbonate)

Yellow Quartz (Chalcedony/Agate) (Silicon Dioxide (SiO2)) — Mineral

Yellow Quartz (Chalcedony/Agate)

Silicon Dioxide (SiO2)

Pink Chalcedony (Agate/Jasper blend) (Silicon Dioxide (SiO₂)) — mineral

Pink Chalcedony (Agate/Jasper blend)

Silicon Dioxide (SiO₂)

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

Chert (Chalcedony/Agate variety)

Microcrystalline Quartz (SiO2)

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

Agate (or Chalcedony)

Silicon Dioxide (SiO2)

Bloodstone (Heliotrope) (Cryptocrystalline Quartz (SiO2) with inclusions of Hematite or Chlorite) — mineral

Bloodstone (Heliotrope)

Cryptocrystalline Quartz (SiO2) with inclusions of Hematite or Chlorite

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

Agate

Agate (Silicon Dioxide, SiO2)

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

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Agate (Carnelian-like) (Chalcedony (Silicon Dioxide, SiO2)) — mineral

Agate (Carnelian-like)

Chalcedony (Silicon Dioxide, SiO2)

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

Carnelian

Carnelian (a variety of Chalcedony, SiO2)

Agate (Silicon dioxide (SiO2)) — mineral

Agate

Silicon dioxide (SiO2)

Ruby (Corundum (Al2O3 with Chromium impurities)) — mineral

Ruby

Corundum (Al2O3 with Chromium impurities)

Blue Lace Agate (Chalcedony (Silicon Dioxide, SiO2)) — mineral

Blue Lace Agate

Chalcedony (Silicon Dioxide, SiO2)

Agate (Silicon dioxide (SiO2)) — mineral

Agate

Silicon dioxide (SiO2)

Blue Lace Agate (Silicon Dioxide (SiO2) - Chalcedony / Quartz) — sedimentary

Blue Lace Agate

Silicon Dioxide (SiO2) - Chalcedony / Quartz

Yellow Agate (Silicon Dioxide (SiO2)) — mineral

Yellow Agate

Silicon Dioxide (SiO2)

Blue Lace Agate (Chalcedony (SiO2)) — mineral

Blue Lace Agate

Chalcedony (SiO2)

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

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

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

Jasper with Quartz inclusions

Silicon Dioxide (SiO2)

Dalmatian Stone (Dalmatian Stone (a fine-grained igneous rock, often misidentified as Dalmatian Jasper)) — igneous

Dalmatian Stone

Dalmatian Stone (a fine-grained igneous rock, often misidentified as Dalmatian Jasper)

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

Carnelian

Carnelian (Silicon Dioxide - SiO2)

Tree Agate (Silicon Dioxide (SiO2)) — mineral

Tree Agate

Silicon Dioxide (SiO2)

Picture Jasper (Silicon Dioxide (SiO2)) — sedimentary

Picture Jasper

Silicon Dioxide (SiO2)

Yellow Agate (Silicon Dioxide (SiO2)) — mineral

Yellow Agate

Silicon Dioxide (SiO2)

Banded Agate (Chert/Chaldcedony) (Silicon Dioxide (SiO₂)) — mineral

Banded Agate (Chert/Chaldcedony)

Silicon Dioxide (SiO₂)

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

White Agate (Chalcedony)

Silicon Dioxide (SiO2)

Agate (Carnelian-Blue Agate mix) (Silicon Dioxide (SiO2)) — mineral

Agate (Carnelian-Blue Agate mix)

Silicon Dioxide (SiO2)

Red Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Blue Sapphire (Corundum (Al2O3)) — mineral

Blue Sapphire

Corundum (Al2O3)

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

Grey Agate (Tumbled)

Silicon Dioxide (SiO2)