Rock Identifier

Category

Sedimentary Or Metamorphic (Base Substrate)

Browse sedimentary or metamorphic (base substrate) specimens identified by the Rock Identifier community.

Learn about Sedimentary Or Metamorphic (Base Substrate) in the encyclopedia

Sard

White Obsidian

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Metabasalt

Eulysite

Breccia

Hornfels

Ironstone

Anthracite

Metaquartzite

Slate

Quartz (Quartz (SiO2 - Silicon Dioxide)) — Mineral

Quartz

Quartz (SiO2 - Silicon Dioxide)

Quartz with Muscovite Mica (SiO2 with KAl2(AlSi3O10)(OH)2) — mineral group

Quartz with Muscovite Mica

SiO2 with KAl2(AlSi3O10)(OH)2

Concrete with Aggregate (Artificial Conglomerate (Cement and Aggregate)) — sedimentary

Concrete with Aggregate

Artificial Conglomerate (Cement and Aggregate)

Fossiliferous Limestone (Biogenic Sedimentary Rock (CaCO3)) — sedimentary

Fossiliferous Limestone

Biogenic Sedimentary Rock (CaCO3)

Sandstone (Clastic sedimentary rock (Arenite)) — sedimentary

Sandstone

Clastic sedimentary rock (Arenite)

Conglomerate (Conglomerate (Clastic Sedimentary Rock)) — sedimentary

Conglomerate

Conglomerate (Clastic Sedimentary Rock)

Limestone (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Sedimentary Calcium Carbonate (CaCO3)

Limestone Cobble (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone Cobble

Sedimentary Calcium Carbonate (CaCO3)

Conglomerate (Conglomerate (clastic sedimentary rock)) — sedimentary

Conglomerate

Conglomerate (clastic sedimentary rock)

Limestone (Calcareous sedimentary rock (CaCO3)) — sedimentary

Limestone

Calcareous sedimentary rock (CaCO3)

Unakite (Altered Granite (Epidotized Granite)) — metamorphic

Unakite

Altered Granite (Epidotized Granite)

Quartz Vein in Siltstone (Siltstone with Quartz (SiO2) inclusion) — sedimentary

Quartz Vein in Siltstone

Siltstone with Quartz (SiO2) inclusion

Septarian Nodule (Septarian Concretion (CaCO3 with Siderite/Limonite streaks)) — sedimentary

Septarian Nodule

Septarian Concretion (CaCO3 with Siderite/Limonite streaks)

Chert Arrowhead (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Arrowhead

Microcrystalline Quartz (SiO2)

Shale (Beach-worn) (Laminated Pelite (primarily clay minerals and quartz)) — sedimentary

Shale (Beach-worn)

Laminated Pelite (primarily clay minerals and quartz)

Crushed Stone / Gravel (Aggregate (mixed lithology)) — sedimentary

Crushed Stone / Gravel

Aggregate (mixed lithology)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Conglomerate (Conglomeratic Sandstone) — sedimentary

Conglomerate

Conglomeratic Sandstone

Sandstone (lithic/greywacke variety) (Arenite (composed primarily of SiO2 with various lithic fragments)) — sedimentary

Sandstone (lithic/greywacke variety)

Arenite (composed primarily of SiO2 with various lithic fragments)

Coquina (Bioclastic Limestone) — sedimentary

Coquina

Bioclastic Limestone

River Stone (Greywacke) (Greywacke (Lithic Sandstone)) — sedimentary

River Stone (Greywacke)

Greywacke (Lithic Sandstone)

Fossiliferous Limestone (Shell Fragment) (Biogenic Limestone (Calcium Carbonate / CaCO3)) — sedimentary

Fossiliferous Limestone (Shell Fragment)

Biogenic Limestone (Calcium Carbonate / CaCO3)

Coquina (Bioclastic Limestone) — sedimentary

Coquina

Bioclastic Limestone

Sandstone (Arenite (SiO2 principal)) — sedimentary

Sandstone

Arenite (SiO2 principal)

Blue Apatite (Calcium Fluorophosphate - Ca5(PO4)3F) — mineral

Blue Apatite

Calcium Fluorophosphate - Ca5(PO4)3F

Magnetite (Iron Ore) (Magnetite (Fe3O4)) — mineral

Magnetite (Iron Ore)

Magnetite (Fe3O4)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Muscovite Mica in Quartz (Potassium Aluminum Silicate Hydroxide (KAl2(AlSi3O10)(OH)2) and Silicon Dioxide (SiO2)) — metamorphic

Muscovite Mica in Quartz

Potassium Aluminum Silicate Hydroxide (KAl2(AlSi3O10)(OH)2) and Silicon Dioxide (SiO2)

Sedimentary Breccia (Breccia (Clastic Sedimentary Rock)) — sedimentary

Sedimentary Breccia

Breccia (Clastic Sedimentary Rock)

Shale (Shale (Consolidated fine-grained clay/silt)) — sedimentary

Shale

Shale (Consolidated fine-grained clay/silt)

Riverstone Quartzite (Water-worn Siltstone/Quartzite) (Metamorphosed Quartz-rich Arenite (SiO2)) — metamorphic

Riverstone Quartzite (Water-worn Siltstone/Quartzite)

Metamorphosed Quartz-rich Arenite (SiO2)

Quartzite with Quartz Vein (Metamorphosed Quartz-rich Sandstone (SiO2)) — metamorphic

Quartzite with Quartz Vein

Metamorphosed Quartz-rich Sandstone (SiO2)

Titanium-Coated Hematite (Aura Hematite) (Titanium-bonded Hematite (Fe2O3 with a Ti coating)) — mineral

Titanium-Coated Hematite (Aura Hematite)

Titanium-bonded Hematite (Fe2O3 with a Ti coating)

Siltstone Pebble (Siltstone (composed of microscopic quartz and clay minerals)) — sedimentary

Siltstone Pebble

Siltstone (composed of microscopic quartz and clay minerals)

Sandstone (with Iron Staining) (Clastic Sedimentary Rock (primarily Quartz with Limonite/Goethite staining)) — sedimentary

Sandstone (with Iron Staining)

Clastic Sedimentary Rock (primarily Quartz with Limonite/Goethite staining)

Limestone with Calcite Crust (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone with Calcite Crust

Sedimentary Calcium Carbonate (CaCO3)

Mica Schist (Schist (Muscovite/Biotite Schist)) — metamorphic

Mica Schist

Schist (Muscovite/Biotite Schist)

Mica Schist (Mica Schist (with Muscovite)) — metamorphic

Mica Schist

Mica Schist (with Muscovite)

Schist (Mica Schist (primarily Muscovite [KAl2(AlSi3O10)(OH)2] or Biotite)) — metamorphic

Schist

Mica Schist (primarily Muscovite [KAl2(AlSi3O10)(OH)2] or Biotite)

Ruby in Fuchsite (Corundum (Al2O3) in Chrome-Mica (K(Al,Cr)2(AlSi3O10)(OH)2)) — metamorphic

Ruby in Fuchsite

Corundum (Al2O3) in Chrome-Mica (K(Al,Cr)2(AlSi3O10)(OH)2)

Mica schist (Mica schist (Muscovite and Biotite group)) — metamorphic

Mica schist

Mica schist (Muscovite and Biotite group)

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