River Pebble
Quartzite / Weathered Sedimentary Rock
Category
Browse sedimentary rock specimens identified by the Rock Identifier community.
River Pebble
Quartzite / Weathered Sedimentary Rock
Sandstone
Sedimentary Rock (Quartz arenite)
Sandstone
Quartz Arenite / Sedimentary Rock
Sandstone
Sedimentary Rock (Quartz Arenite)
Sandstone
Arenite (Clastic Sedimentary Rock)
Sandstone (Weathered Pebble)
Sedimentary Rock (Quartz arenite)
Sandstone or Mudstone
Sedimentary Rock (Sandstone/Mudstone)
Chert (Arrowhead Fragment)
Cryptocrystalline quartz (SiO2)
Fossilized Coral
Rugose Coral / Hexagonaria (Fossilized calcium carbonate)
Chert
Microcrystalline quartz (SiO2)
Chert
Microcrystalline quartz (SiO2)
Fossil Snail Shell (Embedded in Resin)
Gastropoda fossil
Fossil Snail
Gastropoda (fossilized)
Cockle Shell (Bivalve)
Cardiidae (Calcium Carbonate, CaCO3)
Gastropod Fossil (Snail Steinkern)
Class Gastropoda fossil, composed of Calcium Carbonate (CaCO3)
Chert / Flint
Cryptocrystalline quartz (SiO2)
Fossilized Sea Urchin (Echinoid)
Echinoidea (Class) - likely replaced by Calcite or Quartz
Stromatolite
Biogenic sedimentary rock / Stromatolite
Sandstone
Sedimentary Rock (Quartz Sandstone)
Sandstone
Sedimentary Rock (Quartz Arenite)
Siltstone
Siltstone (clastic sedimentary rock)
Conglomerate (or Breccia)
Clastic Sedimentary Rock (Conglomeratic)
Sandstone
Sedimentary Rock (Quartzose Sandstone)
Sandstone
Sedimentary Rock (Quartz Arenite)
Sandstone
Arenite (Clastic Sedimentary Rock)
Siltstone
Siltstone (Clastic Sedimentary Rock)
Jasper
Microcrystalline Quartz (SiO2)
Chert / Flint Nodule
Microcrystalline quartz (SiO2)
Fossilized Gastropod Shell
Gastropoda (Class) replacement / internal cast (steinkern)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Sandstone
Sedimentary Rock (Quartz arenite)
Limestone
Calcareous sedimentary rock (CaCO3)
Fossiliferous Limestone
Biogenic Sedimentary Rock (CaCO3)
River Pebble
Weathered Sedimentary Rock Fragment
Limestone
Calcareous sedimentary rock (CaCO3)
Sandstone with Iron-Stained Band
Quartz Arenite / Sedimentary Rock
Hag Stone
Perforated Quartz / Sedimentary Rock
Waterworn Pebble / Quartzite
Metamorphic/Sedimentary rock fragment
Limestone
Calcareous sedimentary rock (CaCO3)
Limestone
Calcareous sedimentary rock (CaCO3)
Sandstone Pebble
Sedimentary Rock (Quartzose Sandstone)
Stromatolite
Biogenic sedimentary rock / Stromatolite