Hematite
Iron(III) oxide (Fe2O3)
mineral
Category
Sedimentary (Primary) With Artificial Modification
Browse sedimentary (primary) with artificial modification specimens identified by the Rock Identifier community.
Learn about Sedimentary (Primary) With Artificial Modification in the encyclopedia
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Chert (Flint)
Cryptocrystalline Quartz (SiO2)
sedimentary
Sandstone (Red Flagstone)
Clastic sedimentary rock (primarily Quartz - SiO2)
sedimentary
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Magnetite (potentially Hematite-rich)
Magnetite (Fe3O4)
mineral
Hematite Nodular Iron Ore
Hematite (Fe2O3)
mineral
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Red Sandstone
Arenite (SiO2 with Fe2O3)
sedimentary
Breciated Jasper
Brecciated Jasper (Silicon Dioxide, SiO2)
sedimentary
Banded Iron Formation (BIF)
Banded Iron Formation (SiO2 + Fe2O3)
sedimentary
Banded Iron Formation (BIF)
Banded Iron Formation
sedimentary
Banded Iron Formation (BIF)
Magnetite-Hematite Chert (Banded Iron Formation)
sedimentary
Yellow Jasper
Chalcedony (SiO2) with goethite or limonite inclusions
sedimentary
Thunderegg (Ate Agate/Jasper Geode)
Silicon Dioxide (SiO2) within Rhyolite/Perlite matrix
sedimentary/igneous intermediary
Ferruginous Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite (Fe2O3·nH2O) inclusions
mineral
Limonite (with Goethite/Ironstone)
FeO(OH)·nH2O (Hydrated Iron Oxide)
mineral
Ferruginous Sandstone (Ironstone)
Iron-rich Arenite
sedimentary
Beach Pebble (Chert/Quartzite)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Common Opal/Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (specifically Agate/Jasper variety)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Banded Iron Formation (BIF)
Banded Iron Formation (Fe2O3 + SiO2)
sedimentary
Chert (varieties: Flint or Chalcedony)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (and associated Flint)
Silicon Dioxide (SiO2)
sedimentary
Chert (Jasper/Chalcedony)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (specifically Red Chert / Flint)
Silicon Dioxide (SiO2)
sedimentary
Chert (Flint Nobule)
Silicon Dioxide (SiO2)
sedimentary
Chert (Nodule)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (often called Flint or Agate nodule)
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Black Chert / Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (Chocolate or Brown Flint)
Chert (SiO2)
sedimentary
Chert / Flint
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Flint)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Chert (often called Flint)
Chert (Microcrystalline Silicon Dioxide, SiO2)
sedimentary
Bog Iron (Limonite)
Limonite (Hydrated iron(III) oxide-hydroxide, FeO(OH)·nH2O)
sedimentary
Chert (variations include Flint)
Chert (Silicon Dioxide, SiO2)
sedimentary
Chert (specifically Blue or Grey Chert/Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Chert (variations include Flint/Novaculite)
Chert (formula: SiO2)
sedimentary
Chert (often called Flint for darker varieties)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
sedimentary
Chert (specifically Yellow Jasper variety)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Red Jasper (nodule)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary