Rock Identifier

Category

Sedimentary (Chemically Precipitated) Or Metamorphic

Browse sedimentary (chemically precipitated) or metamorphic specimens identified by the Rock Identifier community.

Learn about Sedimentary (Chemically Precipitated) Or Metamorphic in the encyclopedia

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Metabasalt

Eulysite

Breccia

Ironstone

Anthracite

Metaquartzite

Slate

Marble

Hornfels

Metarhyolite

Calcite (Calcite (Mineral; CaCO₃)) — Mineral

Calcite

Calcite (Mineral; CaCO₃)

Sandstone and Quartzite Specimens (SiO2 with varying mineral/clastic inclusions) — sedimentary/metamorphic

Sandstone and Quartzite Specimens

SiO2 with varying mineral/clastic inclusions

sedimentary/metamorphic

Quartz (Common or Milky) (Silicon Dioxide (SiO2)) — mineral

Quartz (Common or Milky)

Silicon Dioxide (SiO2)

Orange Calcite (Calcite (Calcium Carbonate, CaCO3)) — mineral

Orange Calcite

Calcite (Calcium Carbonate, CaCO3)

Chert (Yellow/Tan variety) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Yellow/Tan variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert Pebble (Jasper/Flint variant) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Pebble (Jasper/Flint variant)

Microcrystalline Quartz (SiO2)

Chert (Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint)

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Soapstone (Steatite (composed primarily of Talc: Mg3Si4O10(OH)2)) — metamorphic

Soapstone

Steatite (composed primarily of Talc: Mg3Si4O10(OH)2)

Chert (Jasper variation) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper variation)

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon dioxide (SiO2)

Chert (with Iron Staining) (Silicon Dioxide (SiO2)) — sedimentary

Chert (with Iron Staining)

Silicon Dioxide (SiO2)

Mica-rich schist, likely lepidolite or muscovite schist (Mica schist; predominantly muscovite KAl₂(AlSi₃O₁₀)(OH)₂, possibly lithium-rich lepidolite) — metamorphic

Mica-rich schist, likely lepidolite or muscovite schist

Mica schist; predominantly muscovite KAl₂(AlSi₃O₁₀)(OH)₂, possibly lithium-rich lepidolite

Dalmation Stone (Dalmation Jasper) (Peralkaline rock (primarily Feldspar and Quartz with Arfvedsonite spots)) — igneous

Dalmation Stone (Dalmation Jasper)

Peralkaline rock (primarily Feldspar and Quartz with Arfvedsonite spots)

Chert (Agatized) (Silicon dioxide (SiO2)) — sedimentary

Chert (Agatized)

Silicon dioxide (SiO2)

Green Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Green Jasper

Microcrystalline Quartz (SiO2)

Yellow Chalcedony (Agate/Chert) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — sedimentary

Yellow Chalcedony (Agate/Chert)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Pyrite in Quartz (Iron Sulfide (FeS2) embedded in Silicon Dioxide (SiO2)) — mineral

Pyrite in Quartz

Iron Sulfide (FeS2) embedded in Silicon Dioxide (SiO2)

Botryoidal Hematite (Iron Oxide (Fe2O3)) — mineral

Botryoidal Hematite

Iron Oxide (Fe2O3)

Chrysocolla (on host rock) (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Copper silicate)) — mineral

Chrysocolla (on host rock)

Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Copper silicate)

Quartz (Gravel Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz (Gravel Pebble)

Silicon Dioxide (SiO2)

Quartzite (Metamorphic Quartzite (predominantly SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (predominantly SiO2)

Chert (Chert (SiO2)) — sedimentary

Chert

Chert (SiO2)

Chert (Beach Pebble) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Beach Pebble)

Microcrystalline Quartz (SiO2)

Quartz (likely Rose Quartz or Milky Quartz based on color) (Quartz (SiO2 - Silicon Dioxide)) — Mineral

Quartz (likely Rose Quartz or Milky Quartz based on color)

Quartz (SiO2 - Silicon Dioxide)

Chert / Flint (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert / Flint

Cryptocrystalline Quartz (SiO2)

White Marble (Recrystallized Calcite (CaCO3)) — metamorphic

White Marble

Recrystallized Calcite (CaCO3)

Agate Geode (Silicon Dioxide (SiO2) - Chalcedony variety) — sedimentary

Agate Geode

Silicon Dioxide (SiO2) - Chalcedony variety

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Sea Glass (Frosted Glass Fragment) (Amorphous Silica (Anthropogenic Sediment)) — sedimentary

Sea Glass (Frosted Glass Fragment)

Amorphous Silica (Anthropogenic Sediment)

Banded Sedimentary Rock (Sedimentary rock with Liesegang banding) — sedimentary

Banded Sedimentary Rock

Sedimentary rock with Liesegang banding

Chert / River Pebble (Silicon Dioxide (SiO2)) — sedimentary

Chert / River Pebble

Silicon Dioxide (SiO2)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Quartz Pebble with Drusy/Crystalline Pocket (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble with Drusy/Crystalline Pocket

Silicon Dioxide (SiO2)

Amethyst Geode Piece (Silicon Dioxide (SiO2)) — mineral

Amethyst Geode Piece

Silicon Dioxide (SiO2)

Quartz Pebbles (Silicon Dioxide (SiO2)) — mineral

Quartz Pebbles

Silicon Dioxide (SiO2)

Ocean Jasper (Orbicular Jasper) (Silicon Dioxide (SiO2) with various inclusions) — mineral

Ocean Jasper (Orbicular Jasper)

Silicon Dioxide (SiO2) with various inclusions

Malachite (Copper(II) carbonate hydroxide, Cu2CO3(OH)2) — mineral

Malachite

Copper(II) carbonate hydroxide, Cu2CO3(OH)2

Quartzite Cobble (Quartzite (Silicon Dioxide, SiO2)) — metamorphic

Quartzite Cobble

Quartzite (Silicon Dioxide, SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)