Petrified Wood
Silicified Wood (Permineralized Lycopsid, Conifer, or Hardwood)
Category
Browse sedimentary (fossilized organic remains) specimens identified by the Rock Identifier community.
Petrified Wood
Silicified Wood (Permineralized Lycopsid, Conifer, or Hardwood)
Fossil Shell (Bivalve)
Phylum Mollusca, Class Bivalvia
Chert (Flint)
Chert (Cryptocrystalline Quartz, SiO2)
Chert (Black Flint)
Microcrystalline Quartz (SiO2)
Chert (specifically Flint or Jasper variant)
Silicon Dioxide (SiO2)
Chert / River Pebble
Silicon Dioxide (SiO2)
Fossiliferous Limestone
Biogenic Sedimentary Rock (Calcium Carbonate, CaCO3)
Chert (Flint)
Chert (Cryptocrystalline Silicon Dioxide, SiO2)
Chert / Flint
Microcrystalline Quartz (SiO2)
Chert (River Siltstone/Quartzite)
Sedimentary Cryptocrystalline Quartz (SiO2)
Amber
Succinite (Fossilized Tree Resin) - C10H16O
Petrified Wood
Silicified Wood (SiO2)
Black Chert (Flint)
Microcrystalline Quartz (SiO2)
Amber
Succinite (C10H16O)
Fossilized Coral (Petoskey Stone or similar Hexagonaria variant)
Hexagonaria percarinata (Fossilized Coral)
Kambaba Jasper
Stromatolite (fossilized algae)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Limestone / Dolomite
Calcium Carbonate (CaCO3) / Calcium Magnesium Carbonate (CaMg(CO3)2)
Chert (Flint variety)
Silicon Dioxide (SiO2)
Chert Arrowhead (Projectile Point)
Microcrystalline Quartz (Chert or Flint)
Chert (Jasper/Flint variety)
Cryptocrystalline Quartz (SiO2)
Chert (or Jasper)
Cryptocrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
Chert Pebble
Microcrystalline Quartz (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Banded Chert
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Chert (SiO2)
Chert (Limestone/Flint variant)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert (River Pebble)
Chert (Microcrystalline Quartz, SiO2)
Chert (and Flint)
Silicon dioxide (SiO2) - Microcrystalline quartz
Chert (Nodular)
Microcrystalline Silica (SiO2)
Chert (often called Flint or Jasper)
Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)
Chert (Flint)
Chert (Silicon Dioxide, SiO2)
Fossiliferous Limestone
Limestone (CaCO3 with Bioclasts)
Chert (Chalcedony)
Silicon Dioxide (SiO2)
Chert (Iron-stained)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (specifically Black Chert or Flint)
Cryptocrystalline Quartz (SiO2)