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

Rounded gray limestone pebble with a calcite vein (Calcitic limestone, composed predominantly of calcite (CaCO₃), locally cut by a white calcite vein) — sedimentary

Rounded gray limestone pebble with a calcite vein

Calcitic limestone, composed predominantly of calcite (CaCO₃), locally cut by a white calcite vein

Carnelian Agate (Carnelian (Silicon Dioxide: SiO2)) — mineral

Carnelian Agate

Carnelian (Silicon Dioxide: SiO2)

Chrysocolla (Chrysocolla, (Cu, Al)2H2Si2O5(OH)4·nH2O) — mineral

Chrysocolla

Chrysocolla, (Cu, Al)2H2Si2O5(OH)4·nH2O

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

Agate (Carnelian-Blue Agate mix)

Silicon Dioxide (SiO2)

Chalcedony on Matrix (Silicon Dioxide (SiO2)) — mineral

Chalcedony on Matrix

Silicon Dioxide (SiO2)

Pink Chalcedony (Silicon Dioxide (SiO2)) — mineral

Pink Chalcedony

Silicon Dioxide (SiO2)

Banded Calcite (Green Onyx) (Calcite (CaCO3)) — sedimentary

Banded Calcite (Green Onyx)

Calcite (CaCO3)

Ocean Jasper (Orbicular Jasper) (Orbicular Rhyolite (SiO2)) — igneous

Ocean Jasper (Orbicular Jasper)

Orbicular Rhyolite (SiO2)

Polished tiger’s-eye cabochon (probable) (Quartz variety, SiO₂, with fibrous riebeckite/crocidolite-derived inclusions) — metamorphic

Polished tiger’s-eye cabochon (probable)

Quartz variety, SiO₂, with fibrous riebeckite/crocidolite-derived inclusions

Agate (Cryptocrystalline quartz (SiO2)) — mineral

Agate

Cryptocrystalline quartz (SiO2)

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

Carnelian (Chalcedony)

SiO2 (Silicon Dioxide - Microcrystalline Quartz)

Carnelian (Chalcedony) (SiO2 (Silicon Dioxide with iron oxide inclusions)) — gemstone

Carnelian (Chalcedony)

SiO2 (Silicon Dioxide with iron oxide inclusions)

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

Carnelian (Chalcedony)

SiO2 (Silicon Dioxide with Iron Oxide inclusions)

Carnelian (SiO2 (Quartz variety)) — gemstone

Carnelian

SiO2 (Quartz variety)

Eye Agate (Chalcedony (Silicon Dioxide, SiO2)) — sedimentary

Eye Agate

Chalcedony (Silicon Dioxide, SiO2)

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

Red Jasper

Silicon Dioxide (SiO2) with Hematite impurities

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

Agate (Chalcedony)

Cryptocrystalline Quartz (SiO2)

Yellow Chalcedony (likely Carnelian or Agate) (Silicon dioxide (SiO2)) — mineral

Yellow Chalcedony (likely Carnelian or Agate)

Silicon dioxide (SiO2)

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

Chalcedony (Agate/Jasper Nodule)

Silicon Dioxide (SiO2)

Agate (Banded Chalcedony (SiO2)) — mineral

Agate

Banded Chalcedony (SiO2)

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

Agate

Silicon Dioxide (Chalcedony), SiO2

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

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

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

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Quartz (Variety: Agate / Chalcedony) (Silicon Dioxide (SiO2)) — sedimentary

Quartz (Variety: Agate / Chalcedony)

Silicon Dioxide (SiO2)

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

Chalcedony (Agate)

Cryptocrystalline Quartz (SiO2)

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

Agate

Silicon Dioxide (Chalcedony), SiO2

Green Chalcedony (Silicon Dioxide (SiO2) with trace minerals) — mineral

Green Chalcedony

Silicon Dioxide (SiO2) with trace minerals

Chert (and Chalcedony) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (and Chalcedony)

Microcrystalline Quartz (SiO2)

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

Chert / Chalcedony

Microcrystalline Quartz (SiO2)

Yellow Jasper (Silicon Dioxide (SiO2)) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2)

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

Carnelian (Cryptocrystalline Quartz (SiO2 with Hematite impurities)) — mineralish (variety of chalcedony)

Carnelian

Cryptocrystalline Quartz (SiO2 with Hematite impurities)

mineralish (variety of chalcedony)

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

Chalcedony (Yellow Chert / Agate)

Quartz (Silicon Dioxide - SiO2)

Agate Nodule (Silicon dioxide (Chalcedony/Quartz), SiO2) — sedimentary

Agate Nodule

Silicon dioxide (Chalcedony/Quartz), SiO2

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

Chalcedony with Druzy Quartz

Silicon Dioxide (SiO2)

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

Blue Dyed Agate

Chalcedony (Silicon Dioxide, SiO2)

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

Agate

Chalcedony (Silicon Dioxide, SiO2)

Jasper (Chalcedony (Microcrystalline Quartz) - SiO2) — sedimentary or metamorphic

Jasper

Chalcedony (Microcrystalline Quartz) - SiO2

sedimentary or metamorphic

Red Jasper (Silicon dioxide (microcrystalline quartz), SiO2) — sedimentary

Red Jasper

Silicon dioxide (microcrystalline quartz), SiO2

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

Black Jasper

Silicon dioxide (SiO2) with carbonaceous impurities

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

Carnelian

Carnelian (Silicon Dioxide - SiO2)