Rock Identifier

Category

Sedimentary (Chemically Precipitated Mineral)

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

Learn about Sedimentary (Chemically Precipitated Mineral) in the encyclopedia

Coal

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Glauconite

Breccia

Hutcheonite

Halite

Ironstone

Sperrylite

Baddeleyite

Anatase

Brookite

Banded Agate (Silicon Dioxide (SiO2) - Chalcedony) — mineral

Banded Agate

Silicon Dioxide (SiO2) - Chalcedony

Quartzite with inclusions (Quartzite (primarily SiO2)) — metamorphic

Quartzite with inclusions

Quartzite (primarily SiO2)

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

Amethyst Geode Piece

Silicon Dioxide (SiO2)

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

Quartz Pebble with Drusy/Crystalline Pocket

Silicon Dioxide (SiO2)

Iron-rich chert or jasper (Microcrystalline quartz (SiO₂), variably stained by iron oxides/hydroxides) — sedimentary

Iron-rich chert or jasper

Microcrystalline quartz (SiO₂), variably stained by iron oxides/hydroxides

Shale with Quartz Vein (Argillaceous Shale with Silicon Dioxide Vein) — sedimentary

Shale with Quartz Vein

Argillaceous Shale with Silicon Dioxide Vein

Quartz Geode Fragment (Silicon Dioxide (SiO2)) — mineral

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Chert / Flint (Cryptocrystalline quartz (SiO2)) — Sedimentary

Chert / Flint

Cryptocrystalline quartz (SiO2)

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

Quartz (Grain)

Silicon Dioxide (SiO2)

Banded Chert (Chert (Silicon Dioxide, SiO2)) — sedimentary

Banded Chert

Chert (Silicon Dioxide, SiO2)

Green Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Green Jasper

Microcrystalline Quartz (SiO2)

Tumbled Hematite (Iron(III) oxide (Fe2O3)) — mineral

Tumbled Hematite

Iron(III) oxide (Fe2O3)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Green Calcite (Calcium Carbonate (CaCO3)) — mineral

Green Calcite

Calcium Carbonate (CaCO3)

Quartz Geode Fragment (Silicon Dioxide (SiO2)) — mineral

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Ironstone / iron-oxide-rich rock fragment (Likely limonite/goethite-rich ironstone; exact identification is not possible from the image alone) — sedimentary

Ironstone / iron-oxide-rich rock fragment

Likely limonite/goethite-rich ironstone; exact identification is not possible from the image alone

Quartz Geode (Silicon Dioxide (SiO2)) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2)

Limestone with Quartz or Calcite Veining (Calcium Carbonate (CaCO3) matrix with SiO2 or CaCO3 inclusions) — sedimentary

Limestone with Quartz or Calcite Veining

Calcium Carbonate (CaCO3) matrix with SiO2 or CaCO3 inclusions

Septarian Nodule (Micro-fragment) (Septarian Nodule / Concretion (CaCO3 + CaMg(CO3)2 + Quartz)) — sedimentary

Septarian Nodule (Micro-fragment)

Septarian Nodule / Concretion (CaCO3 + CaMg(CO3)2 + Quartz)

Jasper (Iron-stained Chert) (Silicon Dioxide (SiO2) with Iron Oxides) — sedimentary

Jasper (Iron-stained Chert)

Silicon Dioxide (SiO2) with Iron Oxides

Jasper with Quartz Druzy (Silicon Dioxide (SiO2)) — sedimentary

Jasper with Quartz Druzy

Silicon Dioxide (SiO2)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Jasper (SiO2) — mineral

Jasper

SiO2

Yellow Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz

Silicon Dioxide (SiO2)

Quartz vein in Schist (Crystalline Silicon Dioxide (SiO2) in Metamorphic Host) — metamorphic

Quartz vein in Schist

Crystalline Silicon Dioxide (SiO2) in Metamorphic Host

Quartz crystals on matrix (Silicon dioxide (SiO2)) — mineral

Quartz crystals on matrix

Silicon dioxide (SiO2)

Leopard Skin Jasper (Microcrystalline Quartz (SiO2) with mineral impurities) — sedimentary

Leopard Skin Jasper

Microcrystalline Quartz (SiO2) with mineral impurities

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Milky/Clear Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Clear Quartz)

Silicon Dioxide (SiO2)

Veined Sandstone with Calcite Veins (Sedimentary sandstone with hydrothermal/mineral veins) — sedimentary

Veined Sandstone with Calcite Veins

Sedimentary sandstone with hydrothermal/mineral veins

Riverstone (Sandstone Pebble) (Arenite (SiO2 with various lithic fragments)) — sedimentary

Riverstone (Sandstone Pebble)

Arenite (SiO2 with various lithic fragments)

Ferruginous Sandstone (Gritstone) (Clastic sedimentary rock with iron-rich cement (FeO(OH)·nH2O)) — sedimentary

Ferruginous Sandstone (Gritstone)

Clastic sedimentary rock with iron-rich cement (FeO(OH)·nH2O)

Ferruginous Sandstone (Gritstone) (Arenite with Iron-Oxide Cement (SiO2 with Fe2O3 and FeO(OH))) — sedimentary

Ferruginous Sandstone (Gritstone)

Arenite with Iron-Oxide Cement (SiO2 with Fe2O3 and FeO(OH))

Septarian Nodule Segment (Commonly known as Dragon Stone or Lightning Stone) (Septarian Nodule (CaCO3 / Hydrated Calcium Carbonate)) — sedimentary

Septarian Nodule Segment (Commonly known as Dragon Stone or Lightning Stone)

Septarian Nodule (CaCO3 / Hydrated Calcium Carbonate)

Sand and Gravel (Quartz-rich) (Unconsolidated fluvial/beach sediment (primarily Silica/SiO2)) — sedimentary

Sand and Gravel (Quartz-rich)

Unconsolidated fluvial/beach sediment (primarily Silica/SiO2)

Travertine (likely polished limestone) (Calcite-rich carbonate rock; predominantly CaCO₃) — sedimentary

Travertine (likely polished limestone)

Calcite-rich carbonate rock; predominantly CaCO₃

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

Weathered limestone

Limestone, predominantly calcite (CaCO₃)

Wishing Stone / Banded Quartz Vein Pebble (Sedimentary pebble with hydrothermal quartz veins (SiO2)) — sedimentary

Wishing Stone / Banded Quartz Vein Pebble

Sedimentary pebble with hydrothermal quartz veins (SiO2)

Tumbled milky quartz (Quartz (silicon dioxide, SiO₂)) — mineral

Tumbled milky quartz

Quartz (silicon dioxide, SiO₂)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)