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

Glauconite

Quartzite Sandstone

Quartzite Sandstone

Breccia

Hutcheonite

Halite

Ironstone

Sperrylite

Baddeleyite

Anatase

Brookite

Quartz Sand and Gravel (Silicon dioxide (SiO2)) — sedimentary

Quartz Sand and Gravel

Silicon dioxide (SiO2)

Chalcedony (Agate/Chert variety) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Agate/Chert variety)

Silicon Dioxide (SiO2)

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

Green Calcite

Calcite (Calcium Carbonate, CaCO3)

Chert (specifically Cryptocrystalline Quartz) (Silicon dioxide (SiO2)) — sedimentary

Chert (specifically Cryptocrystalline Quartz)

Silicon dioxide (SiO2)

Fluorite, Turquoise, and Calcite set (Calcium Fluoride (CaF2), Hydrous Phosphate of Copper and Aluminum (CuAl6(PO4)4(OH)8·4H2O), Calcium Carbonate (CaCO3)) — mineral

Fluorite, Turquoise, and Calcite set

Calcium Fluoride (CaF2), Hydrous Phosphate of Copper and Aluminum (CuAl6(PO4)4(OH)8·4H2O), Calcium Carbonate (CaCO3)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Quartz (Small Fragment)

Silicon Dioxide (SiO2)

Leopard Jasper (Microcrystalline Quartz (SiO2) with mineral inclusions) — sedimentary

Leopard Jasper

Microcrystalline Quartz (SiO2) with mineral inclusions

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

Chert (Flint Nodule)

Silicon Dioxide (SiO2)

Iron-stained Quartz (with Limonite/Hematite) (Silicon Dioxide (SiO2) with Iron Oxide inclusions (FeO(OH) or Fe2O3)) — Mineral

Iron-stained Quartz (with Limonite/Hematite)

Silicon Dioxide (SiO2) with Iron Oxide inclusions (FeO(OH) or Fe2O3)

Bauxite (Bauxite (Al2O3·2H2O)) — sedimentary

Bauxite

Bauxite (Al2O3·2H2O)

Chert / Flint (Silicon Dioxide (Microcrystalline Quartz, $SiO_2$)) — sedimentary

Chert / Flint

Silicon Dioxide (Microcrystalline Quartz, $SiO_2$)

Banded Calcite (often sold as 'Mexican Onyx') (Calcium Carbonate (CaCO3)) — sedimentary

Banded Calcite (often sold as 'Mexican Onyx')

Calcium Carbonate (CaCO3)

Botryoidal Chalcedony (Silicon Dioxide (SiO2)) — mineral

Botryoidal Chalcedony

Silicon Dioxide (SiO2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Limonite (Ochreous) (FeO(OH)·nH2O (Hydrated Iron Oxide)) — mineral

Limonite (Ochreous)

FeO(OH)·nH2O (Hydrated Iron Oxide)

Amethyst or Smoky Quartz Geode Slice (Crystalline Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst or Smoky Quartz Geode Slice

Crystalline Silicon Dioxide (SiO2) with iron impurities

Quartz Geode (Quartz (Silicon Dioxide, SiO2) Geode) — sedimentary

Quartz Geode

Quartz (Silicon Dioxide, SiO2) Geode

Bauxite (Bauxite (Al2O3·2H2O)) — sedimentary

Bauxite

Bauxite (Al2O3·2H2O)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Bauxite (Bauxite (Mixture of Al(OH)3, AlO(OH), and Fe2O3)) — sedimentary

Bauxite

Bauxite (Mixture of Al(OH)3, AlO(OH), and Fe2O3)

Septarian (Dragon Stone) (Septarian concretion (Calcite, Aragonite, and Limestone)) — sedimentary

Septarian (Dragon Stone)

Septarian concretion (Calcite, Aragonite, and Limestone)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Vein in Sandstone (Quartz (SiO2) in Clastic Sedimentary Rock) — sedimentary

Quartz Vein in Sandstone

Quartz (SiO2) in Clastic Sedimentary Rock

Quartz (Small Grains) (Silicon Dioxide (SiO2)) — mineral

Quartz (Small Grains)

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Heliotrope (Bloodstone) Sphere (Cryptocrystalline Quartz (SiO2 with Iron Oxide inclusions)) — sedimentary

Heliotrope (Bloodstone) Sphere

Cryptocrystalline Quartz (SiO2 with Iron Oxide inclusions)

Yellow Jasper (Cryptocrystalline Quartz (SiO2) with Goethite/Limonite inclusions) — sedimentary

Yellow Jasper

Cryptocrystalline Quartz (SiO2) with Goethite/Limonite inclusions

Bumblebee Jasper (Calcite-bearing Volcanic Tuff containing Sulfur and Arsenic (Orpiment/Realgar)) — sedimentary

Bumblebee Jasper

Calcite-bearing Volcanic Tuff containing Sulfur and Arsenic (Orpiment/Realgar)

Ferruginous Sandstone (Sandstone (arenite) with Limonite/Goethite cement) — sedimentary

Ferruginous Sandstone

Sandstone (arenite) with Limonite/Goethite cement

Ironstone Concretion (Moqui Marble) (Ironstone concretion (Fe2O3 with a sandstone core)) — sedimentary

Ironstone Concretion (Moqui Marble)

Ironstone concretion (Fe2O3 with a sandstone core)

Tumbled brown quartz/chert pebble (Microcrystalline quartz (SiO₂), possibly chert or jasper) — mineral

Tumbled brown quartz/chert pebble

Microcrystalline quartz (SiO₂), possibly chert or jasper

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

Chert / Flint

Microcrystalline Quartz (SiO2)

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

Quartz (Milky/Clear)

Silicon Dioxide (SiO2)

Likely tumbled quartz-rich pebble (Quartz (SiO₂), possibly a weathered quartzite or chalcedony pebble) — mineral

Likely tumbled quartz-rich pebble

Quartz (SiO₂), possibly a weathered quartzite or chalcedony pebble

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

Tumbled quartz pebble (likely milky quartz)

Quartz, silicon dioxide (SiO₂)

Dyed Agate (Silicon Dioxide (SiO2) with artificial pigment) — sedimentary

Dyed Agate

Silicon Dioxide (SiO2) with artificial pigment

Yellow Jasper (Silicon Dioxide (SiO2) - Impure Cryptocrystalline Quartz) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) - Impure Cryptocrystalline Quartz

Geode with Quartz Crystal Cavity (Silicon Dioxide (SiO2) in Calcareous/Siliceous Matrix) — sedimentary

Geode with Quartz Crystal Cavity

Silicon Dioxide (SiO2) in Calcareous/Siliceous Matrix

Red Jasper (Silicon Dioxide (SiO2 with Hematite impurities)) — mineral

Red Jasper

Silicon Dioxide (SiO2 with Hematite impurities)

Amethyst Geode Segment (Silicon Dioxide (SiO2) with trace Iron impurities) — mineral

Amethyst Geode Segment

Silicon Dioxide (SiO2) with trace Iron impurities