Chert
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Category
Anthropogenic (Human Made) Sedimentary Like Material
Browse anthropogenic (human made) sedimentary like material specimens identified by the Rock Identifier community.
Learn about Anthropogenic (Human Made) Sedimentary Like Material in the encyclopedia
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Flint
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
sedimentary
Limpets Shell / Fossil Specimen
Patellogastropoda (Class)
fossil
Chert (Field Stone)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Iron-stained)
Silicon Dioxide (SiO2)
sedimentary
Chert (Flinty variety)
Microcrystalline Quartz (SiO2)
sedimentary
Leland Blue Stone
Anthropogenic Iron Smelting Slag
mineraloid
Chert (Nodule)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (Jasper/Flint variant)
Microcrystalline quartz (SiO2)
sedimentary
Chert
Silicon dioxide (SiO2)
Sedimentary
Colorless faceted gemstone, likely glass or quartz
Uncertain; possibly quartz (SiO₂), but the strong uniform brilliance and apparent molded/faceted form may indicate leaded glass or cubic zirconia
gemstone
Weathered limestone or concrete-like calcareous rock
Limestone; predominantly calcite (CaCO₃), possibly containing dolomite and silicate impurities
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Kidney Stone (Calcium Oxalate / Uric Acid)
Calcium Oxalate Monohydrate (Whewellite) / Calcium Oxalate Dihydrate (Weddellite)
mineral
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Pearl
Calcium Carbonate (mostly Aragonite), CaCO3 (with conchiolin)
mineral
Chert (varieties: Flint or Chalcedony)
Microcrystalline silica (SiO2)
sedimentary
Chert (Flint)
Microcrystalline silica (SiO2)
sedimentary
Chert (Flint variety)
Silicon Dioxide (SiO2)
sedimentary
Banded Chert
Cryptocrystalline Quartz (SiO2)
sedimentary
Sea Glass (Frosted Glass Fragment)
Amorphous Silica (Anthropogenic Sediment)
sedimentary
Chert
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Chert (specifically White Chert or Novaculite)
Silicon Dioxide (SiO₂)
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Quartz (Pebble)
Quartz (SiO₂)
Mineral
Carved jasper bear figurine
Jasper, microcrystalline quartz (SiO₂), likely brecciated or orbicular jasper
mineral
Fossiliferous Chert (with Fossil Shells)
Silicon Dioxide (SiO2) with biogenic inclusions
sedimentary
Chert (specifically Flint or Jasper variant)
Microcrystalline quartz (SiO2)
sedimentary
Banded Flint / Chert
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Flint/Novaculite)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Flint)
Chert (SiO2)
sedimentary
Chert (Green variety)
Silicon Dioxide (SiO2)
sedimentary
Chert
Microcrystalline quartz (SiO2)
sedimentary
Coquina
Coquina (Bioclastic Limestone)
sedimentary
Chert / Chalcedony
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Nodule)
Microcrystalline Quartz (SiO2)
sedimentary
Blue calcite sphere
Calcite (CaCO₃), commonly blue-calcite variety
mineral
Slag (Industrial Glass)
Artificial Vitreous Silicate
mineraloid (anthropogenic)