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

Agate (Chalcedony (Silicon Dioxide, SiO2)) — mineral

Agate

Chalcedony (Silicon Dioxide, SiO2)

Chert (Quartzite-rich River Pebble) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Quartzite-rich River Pebble)

Silicon Dioxide (SiO2)

Chert (Common Variety, Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Common Variety, Jasper)

Microcrystalline Quartz (SiO2)

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

Chert / Microcrystalline Quartz

Chert (SiO2)

Chert (Light Grey / Flint variant) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Light Grey / Flint variant)

Cryptocrystalline Quartz (SiO2)

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

Jasper (specifically Bloodstone or Heliotrope variety) (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary (chemically precipitated)

Jasper (specifically Bloodstone or Heliotrope variety)

Silicon Dioxide (SiO2) with iron oxide inclusions

sedimentary (chemically precipitated)

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

Quartz (Pebble)

Silicon Dioxide (SiO2)

Hematite Nodular Iron Ore (Hematite (Fe2O3)) — mineral

Hematite Nodular Iron Ore

Hematite (Fe2O3)

Iron-rich metamorphic rock, likely banded iron formation fragment (Hematite–magnetite-rich quartzite (BIF); Fe₂O₃/Fe₃O₄ with SiO₂) — metamorphic

Iron-rich metamorphic rock, likely banded iron formation fragment

Hematite–magnetite-rich quartzite (BIF); Fe₂O₃/Fe₃O₄ with SiO₂

Calcite crystal cluster (Calcite, calcium carbonate (CaCO₃)) — mineral

Calcite crystal cluster

Calcite, calcium carbonate (CaCO₃)

Brown chert or flint pebble (Microcrystalline quartz (SiO₂), likely chert) — sedimentary

Brown chert or flint pebble

Microcrystalline quartz (SiO₂), likely chert

Celestite Geode (Strontium Sulfate (SrSO4)) — mineral

Celestite Geode

Strontium Sulfate (SrSO4)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Jasper in Quartz / Brecciated Jasper (Silicon Dioxide (SiO2) with iron oxide impurities) — mineral

Jasper in Quartz / Brecciated Jasper

Silicon Dioxide (SiO2) with iron oxide impurities

Hematite (Iron Oxide (Fe2O3)) — mineral

Hematite

Iron Oxide (Fe2O3)

Red Jasper (Silicon dioxide with iron inclusions (SiO2)) — sedimentary

Red Jasper

Silicon dioxide with iron inclusions (SiO2)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

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

Quartz (Pebble)

Silicon Dioxide (SiO2)

Quartzite (River Cobble) (Quartzite (primarily SiO2)) — metamorphic

Quartzite (River Cobble)

Quartzite (primarily SiO2)

Quartz pebble (Silicon dioxide (SiO2)) — mineral

Quartz pebble

Silicon dioxide (SiO2)

Likely calcite fragment (Calcite (calcium carbonate, CaCO₃)) — mineral

Likely calcite fragment

Calcite (calcium carbonate, CaCO₃)

Calcite crystal fragment (Calcite (calcium carbonate, CaCO₃)) — mineral

Calcite crystal fragment

Calcite (calcium carbonate, CaCO₃)

Quartz crystal fragment (likely milky quartz) (Quartz, silicon dioxide (SiO₂), trigonal crystal system) — mineral

Quartz crystal fragment (likely milky quartz)

Quartz, silicon dioxide (SiO₂), trigonal crystal system

Limonite (Ironstone) (Limonite (FeO(OH)·nH2O)) — mineral

Limonite (Ironstone)

Limonite (FeO(OH)·nH2O)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Honey calcite crystal (Calcite (calcium carbonate, CaCO₃)) — mineral

Honey calcite crystal

Calcite (calcium carbonate, CaCO₃)

Weathered limestone or dolostone (Calcite-rich limestone (CaCO₃), possibly dolomite-bearing) — sedimentary

Weathered limestone or dolostone

Calcite-rich limestone (CaCO₃), possibly dolomite-bearing

Bumblebee Jasper (technically a type of Agate/Anhydrite) (Calcite and Anhydrite with inclusions of Realgar and Orpiment (As2S3)) — sedimentary

Bumblebee Jasper (technically a type of Agate/Anhydrite)

Calcite and Anhydrite with inclusions of Realgar and Orpiment (As2S3)

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 (Nodule) (Silicon dioxide (SiO2) - Cryptocrystalline Quartz) — sedimentary

Chert (Nodule)

Silicon dioxide (SiO2) - Cryptocrystalline Quartz

Quartzite Pebble (River Rock) (Quartzite (mainly SiO2)) — metamorphic

Quartzite Pebble (River Rock)

Quartzite (mainly SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Quartz (Milky or Common Quartz)

Silicon Dioxide (SiO2)

Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

White Quartz (Silicon Dioxide (SiO2)) — mineral

White Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)