Banded Chert
Microcrystalline Quartz (SiO2)
Category
Browse sedimentary (fossilized organic remains) specimens identified by the Rock Identifier community.
Banded Chert
Microcrystalline Quartz (SiO2)
Fossiliferous Limestone
Fossiliferous Limestone (CaCO3 with organic inclusions)
Chert (Flint)
Chert (Silicon Dioxide, SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (or Chalcedony)
Microcrystalline Quartz (SiO2)
Chert (specifically Black Chert or Flint)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (specifically Red Chert/Jasper nodule)
Microcrystalline Quartz (SiO2)
Chert (specifically Red Chert/Jasper variety)
Silicon Dioxide (SiO2)
Chert (and Jasper/Flint variety)
Cryptocrystalline Quartz (SiO2)
Chert Pebble
Microcrystalline quartz (SiO2)
Chert (Flint)
Chert (Silicon Dioxide, SiO2)
Chert (specifically Flint or Common Chert)
Chert (Cryptocrystalline Silica, SiO2)
Chert (specifically Jasper/Flint)
Microcrystalline Quartz (SiO2)
Chert (River Pebble)
Microcrystalline Quartz (SiO2)
Chert (and Jasper/Chalcedony variety)
Microcrystalline Quartz (SiO2)
Chert (River Pebble)
Microcrystalline Quartz (SiO2)
Chert (Iron-stained)
Microcrystalline Quartz (SiO2)
Flint (or Chert)
Cryptocrystalline Quartz (SiO2)
Chert (Jasper/Mudstone variety with Oxidation)
Silicon dioxide (SiO2)
Fossilized Shark Tooth
Elasmobranchii gen. sp. indet. (Calcium Phosphate - Ca5(PO4)3(OH,F,Cl))
Chert
Chert (Microcrystalline Quartz, SiO2)
Coal (Anthracite or Bituminous)
Carbonaceous sedimentary rock (Carbon)
Chert (Tan/Yellow variety)
Microcrystalline quartz (SiO2)
Amber
Succinite (C10H16O)
Fossilized Shark Tooth (fragment)
Elasmobranchii (Class) fossil
Chert (Iron-rich or Slate-like variant)
Silicon Dioxide (SiO2)
Sandstone Concretion
Sedimentary concretion
Limestone
Calcium carbonate (CaCO3)
Chert (and Jasper)
Microcrystalline Quartz (SiO2)
Fossiliferous Limestone
Biogenic Limestone (Calcium Carbonate, CaCO3)
Fossiliferous Brachiopod in Shale
Brachiopoda (Phylum) preserved in Carbonaceous Shale
Fossil crinoid stem segment (columnal)
Crinoidea; commonly preserved as calcite ossicles, often called entrocrinite
Limestone
Calcium Carbonate (CaCO3)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Chert (Common Jasper)
Microcrystalline Quartz (SiO2)
Chert / Jasper
Silicon Dioxide (SiO2)
River-worn Chert
Microcrystalline Quartz (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Banded Chert
Silicon Dioxide (SiO2)
Chert (River Pebble)
Cryptocrystalline Quartz (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (Flint variety)
Microcrystalline or cryptocrystalline Quartz (SiO2)