Rock Identifier

Category

Sedimentary (Base), Then Artificial

Browse sedimentary (base), then artificial specimens identified by the Rock Identifier community.

Learn about Sedimentary (Base), Then Artificial in the encyclopedia

Sard

White Obsidian

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Ironstone

Breccia

Lilac Obsidian

Crimson Obsidian

Tangerine Obsidian

Pastel Obsidian

Violet Obsidian

Lavender Obsidian

Chert (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert

Cryptocrystalline Quartz (SiO2)

Ferruginous Sandstone (Ironstone) (Sedimentary rock with Limonite/Goethite cement) — sedimentary

Ferruginous Sandstone (Ironstone)

Sedimentary rock with Limonite/Goethite cement

Chert with Iron Inclusions (Microcrystalline Quartz (SiO2) with Hematite/Limonite) — sedimentary

Chert with Iron Inclusions

Microcrystalline Quartz (SiO2) with Hematite/Limonite

Fossilized Rugose Coral (Order Rugosa (Calcium Carbonate - CaCO3)) — sedimentary

Fossilized Rugose Coral

Order Rugosa (Calcium Carbonate - CaCO3)

K2 Jasper (K2 Granite) (Azurite in Granite (Biotite Granite containing Azurite)) — igneous

K2 Jasper (K2 Granite)

Azurite in Granite (Biotite Granite containing Azurite)

Pebble (Lithified rock fragment / Sedimentary clast) — sedimentary

Pebble

Lithified rock fragment / Sedimentary clast

River Sandstone (Lithic Arenite) (Lithic Sandstone (SiO2 dominated with lithic fragments)) — sedimentary

River Sandstone (Lithic Arenite)

Lithic Sandstone (SiO2 dominated with lithic fragments)

Sandstone (lithic wacke/arenite) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (lithic wacke/arenite)

Clastic sedimentary rock (primarily SiO2)

Weathered limestone fragment (Limestone, predominantly calcite (CaCO₃)) — sedimentary

Weathered limestone fragment

Limestone, predominantly calcite (CaCO₃)

Graphite (Graphite (C)) — mineral

Graphite

Graphite (C)

Epidote (Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))) — mineral

Epidote

Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Sandstone (Quartzite-rich) (Clastic sedimentary rock (SiO2 primarily)) — sedimentary

Sandstone (Quartzite-rich)

Clastic sedimentary rock (SiO2 primarily)

Dalmatian Jasper (Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite) — igneous

Dalmatian Jasper

Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite

Anthracite Coal (Anthracite (Carbon-based organic sedimentary/metamorphic rock)) — metamorphic

Anthracite Coal

Anthracite (Carbon-based organic sedimentary/metamorphic rock)

Coal (Anthracite) (Anthracite (Carbon-based organic sedimentary/metamorphic rock)) — metamorphic

Coal (Anthracite)

Anthracite (Carbon-based organic sedimentary/metamorphic rock)

Graphite (Graphite (Carbon, C)) — mineral

Graphite

Graphite (Carbon, C)

Fuchsite in Quartz (K(Al,Cr)2(AlSi3O10)(OH)2 (Muscovite with Chromium)) — metamorphic

Fuchsite in Quartz

K(Al,Cr)2(AlSi3O10)(OH)2 (Muscovite with Chromium)

Chert (Chert (SiO2)) — sedimentary

Chert

Chert (SiO2)

Sandstone with Iron Staining (Arenite (SiO2 with Fe-oxide coatings)) — sedimentary

Sandstone with Iron Staining

Arenite (SiO2 with Fe-oxide coatings)

Chert (Jasper/Agate variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Agate variety)

Microcrystalline Quartz (SiO2)

Chert (Pink and Yellow Chert) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Pink and Yellow Chert)

Microcrystalline Quartz (SiO2)

Chert (Flint Nodules) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (Flint Nodules)

Microcrystalline quartz (SiO2)

Reddish Brown Claystone or Siltstone (Argillite / Siltstone / Claystone) — sedimentary

Reddish Brown Claystone or Siltstone

Argillite / Siltstone / Claystone

Chert Pebble (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Pebble

Microcrystalline Quartz (SiO2)

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

Sandstone (likely Siltstone) (Arenite or Siltstone (high SiO2 content)) — sedimentary

Sandstone (likely Siltstone)

Arenite or Siltstone (high SiO2 content)

Agate (specifically, multi-colored or pastel-dyed agate) (Silicon dioxide (SiO2) - specifically, a cryptocrystalline variety of quartz known as Chalcedony, with banding classified as Agate. (If it were Fluorite, the chemical formula would be Calcium Fluoride - CaF2).) — Mineral

Agate (specifically, multi-colored or pastel-dyed agate)

Silicon dioxide (SiO2) - specifically, a cryptocrystalline variety of quartz known as Chalcedony, with banding classified as Agate. (If it were Fluorite, the chemical formula would be Calcium Fluoride - CaF2).

Cone-in-cone structure (Limestone) (Cone-in-cone structure (Secondary Sedimentary Structure)) — sedimentary

Cone-in-cone structure (Limestone)

Cone-in-cone structure (Secondary Sedimentary Structure)

Fossilized Shell in Limestone (Carbonate sedimentary rock with Bivalvia or Brachiopoda remains) — fossil

Fossilized Shell in Limestone

Carbonate sedimentary rock with Bivalvia or Brachiopoda remains

Chert (Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline Quartz (SiO2)

Fossiliferous Limestone (Calcium Carbonate (CaCO3) with marine fossils) — sedimentary

Fossiliferous Limestone

Calcium Carbonate (CaCO3) with marine fossils

Sandstone (Ferruginous) (Arenite (Fe-oxide enriched)) — sedimentary

Sandstone (Ferruginous)

Arenite (Fe-oxide enriched)

Sandstone (with Iron Staining) (Arenite (SiO2 with Fe2O3/FeOOH impurities)) — sedimentary

Sandstone (with Iron Staining)

Arenite (SiO2 with Fe2O3/FeOOH impurities)

Quartz and Mixed Sedimentary Rocks (Silicon Dioxide (SiO2) mixed with various clastic sedimentary lithologies) — sedimentary

Quartz and Mixed Sedimentary Rocks

Silicon Dioxide (SiO2) mixed with various clastic sedimentary lithologies

Chert (Limestone-based) (Silicon dioxide (SiO2)) — sedimentary

Chert (Limestone-based)

Silicon dioxide (SiO2)

Sandstone (with banding) (Arenite (primarily SiO2)) — sedimentary

Sandstone (with banding)

Arenite (primarily SiO2)

Sandstone (Quartz-rich) (Sandstone (SiO2 dominated)) — sedimentary

Sandstone (Quartz-rich)

Sandstone (SiO2 dominated)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Rounded dark river pebble (Likely fine-grained basalt or andesite; exact identification requires a fresh surface or tests) — sedimentary

Rounded dark river pebble

Likely fine-grained basalt or andesite; exact identification requires a fresh surface or tests

Limestone (Weathered) (Sedimentary carbonate rock, primarily calcium carbonate (CaCO3)) — sedimentary

Limestone (Weathered)

Sedimentary carbonate rock, primarily calcium carbonate (CaCO3)

Chert Breccia (Brecciated Chert (SiO2)) — sedimentary

Chert Breccia

Brecciated Chert (SiO2)

Coquina (Biogenic Limestone (Calcite, CaCO3)) — sedimentary

Coquina

Biogenic Limestone (Calcite, CaCO3)