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

Fossiliferous Limestone with Brachiopod (Phylum Brachiopoda in Sedimentary Matrix (CaCO3)) — fossil

Fossiliferous Limestone with Brachiopod

Phylum Brachiopoda in Sedimentary Matrix (CaCO3)

Polished fossiliferous limestone, likely crinoidal or coral limestone (Calcite (CaCO₃), fossiliferous carbonate rock) — fossil

Polished fossiliferous limestone, likely crinoidal or coral limestone

Calcite (CaCO₃), fossiliferous carbonate rock

Honeycomb Coral Fossil (Favosites (extinct genus of tabulate coral)) — sedimentary

Honeycomb Coral Fossil

Favosites (extinct genus of tabulate coral)

Fossiliferous Limestone with Fossil Fragment (Fossiliferous Limestone (CaCO3 with organic remains)) — fossil

Fossiliferous Limestone with Fossil Fragment

Fossiliferous Limestone (CaCO3 with organic remains)

Jasper and Mudstone Composite (Silicified Sedimentary Rock / Jasperoid Pebble) — sedimentary

Jasper and Mudstone Composite

Silicified Sedimentary Rock / Jasperoid Pebble

Chert / Flint Conglomerate (Silicified Sedimentary Breccia (primarily SiO2)) — sedimentary

Chert / Flint Conglomerate

Silicified Sedimentary Breccia (primarily SiO2)

Brachiopod Fossil (Phylum Brachiopoda (Class Rhynchonellata)) — sedimentary

Brachiopod Fossil

Phylum Brachiopoda (Class Rhynchonellata)

Coral Fossil (Favosites) (Favosites (Extinct genus of tabulate corals)) — sedimentary

Coral Fossil (Favosites)

Favosites (Extinct genus of tabulate corals)

Fossil Coral (Rugosa or Solitary Coral) (Rugosa (Order), often referred to as 'Horn Coral' (Lithostrotionella or Grewingkia)) — sedimentary

Fossil Coral (Rugosa or Solitary Coral)

Rugosa (Order), often referred to as 'Horn Coral' (Lithostrotionella or Grewingkia)

Fossil Coral (Rugose Coral) (Rugosa (extinct order); typically composed of Calcite (CaCO3) or replaced by Quartz (SiO2)) — sedimentary

Fossil Coral (Rugose Coral)

Rugosa (extinct order); typically composed of Calcite (CaCO3) or replaced by Quartz (SiO2)

Gastropod Fossil (Snail Internal Mold) (Gastropoda; internal mold (steinkern), often composed of Calcium Carbonate (CaCO3) or Silica (SiO2)) — sedimentary

Gastropod Fossil (Snail Internal Mold)

Gastropoda; internal mold (steinkern), often composed of Calcium Carbonate (CaCO3) or Silica (SiO2)

Horn Coral Fossil (Rugosa (Order Rugosa)) — sedimentary

Horn Coral Fossil

Rugosa (Order Rugosa)

Stromatolite (Biogenic Sedimentary Rock (Precambrian Stromatolite fossil)) — sedimentary

Stromatolite

Biogenic Sedimentary Rock (Precambrian Stromatolite fossil)

Limestone (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Sedimentary Calcium Carbonate (CaCO3)

Chert (variably Oolitic or Fossiliferous) (Sedimentary Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (variably Oolitic or Fossiliferous)

Sedimentary Cryptocrystalline Quartz (SiO2)

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

Chalcedony (Agate)

Chalcedony (Cryptocrystalline Quartz, SiO2)

Weathered, porous limestone (probable fossiliferous limestone) (Calcite-rich limestone; predominantly CaCO₃) — sedimentary

Weathered, porous limestone (probable fossiliferous limestone)

Calcite-rich limestone; predominantly CaCO₃

Limestone (with potential fossil inclusions) (Calcium Carbonate (CaCO3)) — sedimentary

Limestone (with potential fossil inclusions)

Calcium Carbonate (CaCO3)

Limestone (Calcareous Sedimentary Rock (CaCO3)) — sedimentary

Limestone

Calcareous Sedimentary Rock (CaCO3)

Fossilized Favosites (Honeycomb Coral) (Favosites (extinct genus of tabulate coral)) — sedimentary

Fossilized Favosites (Honeycomb Coral)

Favosites (extinct genus of tabulate coral)

Fossilized Gastropod in Chert/Limestone (Internal mold of Gastropoda (Class) with CaCO3 or SiO2 mineral formula) — sedimentary

Fossilized Gastropod in Chert/Limestone

Internal mold of Gastropoda (Class) with CaCO3 or SiO2 mineral formula

Petrified Wood (Silicified wood (Quartz, SiO2)) — fossil

Petrified Wood

Silicified wood (Quartz, SiO2)

Weathered limestone (Calcite-rich limestone (CaCO₃), possibly fossiliferous) — sedimentary

Weathered limestone

Calcite-rich limestone (CaCO₃), possibly fossiliferous

Petrified Wood (Silicified wood (Quartz, SiO2)) — metamorphic

Petrified Wood

Silicified wood (Quartz, SiO2)

Petrified Wood (Silicified Wood (primarily SiO2)) — fossil

Petrified Wood

Silicified Wood (primarily SiO2)

Fossiliferous Limestone with Brachiopods (Calcium Carbonate (CaCO3) with fossilized Brachiopoda sp. (likely Order Spiriferida or Rhynchonellida)) — sedimentary

Fossiliferous Limestone with Brachiopods

Calcium Carbonate (CaCO3) with fossilized Brachiopoda sp. (likely Order Spiriferida or Rhynchonellida)

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

Ocean Jasper

Orbicular Jasper (Silicon Dioxide, SiO2)

Fossiliferous Limestone with Crinoid Stem (Sedimentary Rock with Echinodermata fossil fragment) — fossil

Fossiliferous Limestone with Crinoid Stem

Sedimentary Rock with Echinodermata fossil fragment

Weathered limestone (Calcitic limestone, mainly calcium carbonate (CaCO₃)) — sedimentary

Weathered limestone

Calcitic limestone, mainly calcium carbonate (CaCO₃)

Weathered limestone pebble (Limestone, primarily calcite (CaCO₃)) — sedimentary

Weathered limestone pebble

Limestone, primarily calcite (CaCO₃)

Petrified Wood (Silicified Wood (primarily SiO2)) — sedimentary

Petrified Wood

Silicified Wood (primarily SiO2)

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

Mookaite Jasper

Radiolarite (Silicon Dioxide, SiO2)

Leopard Skin Jasper (Silicon Dioxide (SiO2) with various inclusions) — sedimentary

Leopard Skin Jasper

Silicon Dioxide (SiO2) with various inclusions

Fossiliferous Limestone (Hash) (Bioclastic Grainstone / Calcarenite) — fossil

Fossiliferous Limestone (Hash)

Bioclastic Grainstone / Calcarenite

Petrified Wood (Silicified Wood (SiO2 permineralization)) — fossil

Petrified Wood

Silicified Wood (SiO2 permineralization)

Petrified Wood (Silicified wood (primarily SiO2)) — fossil

Petrified Wood

Silicified wood (primarily SiO2)

Fossil Brachiopod Cast (Atrypa species) (Phylum Brachiopoda, Class Rhynchonellata, Order Atrypida) — sedimentary

Fossil Brachiopod Cast (Atrypa species)

Phylum Brachiopoda, Class Rhynchonellata, Order Atrypida

Favosites Fossil (Honeycomb Coral Pebble) (Favosites goldfussi / Silicified Coral Fossil) — sedimentary

Favosites Fossil (Honeycomb Coral Pebble)

Favosites goldfussi / Silicified Coral Fossil

Fossilized Bone Fragment (Permineralized Vertebrate Bone (Hydrox yapatite replaced by Silica or Calcite)) — sedimentary

Fossilized Bone Fragment

Permineralized Vertebrate Bone (Hydrox yapatite replaced by Silica or Calcite)

Petrified Wood (Silicified Wood (primarily SiO2)) — sedimentary

Petrified Wood

Silicified Wood (primarily SiO2)

Petrified Wood (Silicified Wood (primarily SiO2)) — sedimentary

Petrified Wood

Silicified Wood (primarily SiO2)

Petrified Wood (Silicified Wood (primarily SiO2)) — sedimentary

Petrified Wood

Silicified Wood (primarily SiO2)