Rock Identifier

Category

Mineral (Iron Ore)

Browse mineral (iron ore) specimens identified by the Rock Identifier community.

Learn about Mineral (Iron Ore) in the encyclopedia

Peacock Ore

Bog Iron

Banded Iron Formation

Banded Iron Formation

Ilmenite

Goethite

Chromite

Magnetite

Siderite

Limonite

Bornite

Hematite

Sperrylite

Limonite (Oxidized Iron Ore) (FeO(OH)·nH2O (Hydrous ferric oxide)) — mineral

Limonite (Oxidized Iron Ore)

FeO(OH)·nH2O (Hydrous ferric oxide)

Likely hematite-rich ironstone or metallic mineral fragment (Hematite (Fe₂O₃), possibly with magnetite (Fe₃O₄) or metallic iron) — mineral

Likely hematite-rich ironstone or metallic mineral fragment

Hematite (Fe₂O₃), possibly with magnetite (Fe₃O₄) or metallic iron

Tumbled chalcopyrite (likely) (Chalcopyrite, CuFeS₂) — mineral

Tumbled chalcopyrite (likely)

Chalcopyrite, CuFeS₂

Limonite (Iron Ore) (FeO(OH)·nH2O (Hydrated iron(III) oxide-hydroxide)) — mineral

Limonite (Iron Ore)

FeO(OH)·nH2O (Hydrated iron(III) oxide-hydroxide)

Chalcopyrite (Copper Iron Sulfide (CuFeS2)) — mineral

Chalcopyrite

Copper Iron Sulfide (CuFeS2)

Limonite Geode (Ironstone Concretion) (Limonite [FeO(OH)·nH2O] with possible Quartz or Calcite interior) — sedimentary

Limonite Geode (Ironstone Concretion)

Limonite [FeO(OH)·nH2O] with possible Quartz or Calcite interior

Limonite Concretion (FeO(OH)qnH2O (Hydrated iron(III) oxide-hydroxide mixture)) — sedimentary

Limonite Concretion

FeO(OH)qnH2O (Hydrated iron(III) oxide-hydroxide mixture)

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

Hematite

Iron(III) oxide (Fe2O3)

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

Hematite

Iron(III) oxide (Fe2O3)

Limonite (Iron Ore) (Limonite (FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Magnetite Ore (Magnetite (Fe3O4)) — mineral

Magnetite Ore

Magnetite (Fe3O4)

Limonite-stained Gossan/Ironstone (Goethite and Hematite (Fe2O3 • nH2O)) — sedimentary

Limonite-stained Gossan/Ironstone

Goethite and Hematite (Fe2O3 • nH2O)

Lake Superior Agate (Silicon Dioxide (SiO2) - variety: banded chalcedony quartzite) — sedimentary

Lake Superior Agate

Silicon Dioxide (SiO2) - variety: banded chalcedony quartzite

Limonite Sandstone (Ferruginous Sandstone (Hydrated Iron Oxide)) — sedimentary

Limonite Sandstone

Ferruginous Sandstone (Hydrated Iron Oxide)

Limonite Concretion (Limonite (Hydrated iron(III) oxide-hydroxide) FeO(OH)·nH2O) — sedimentary

Limonite Concretion

Limonite (Hydrated iron(III) oxide-hydroxide) FeO(OH)·nH2O

Limonite (Iron Ore) (Limonite (FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Hematite (Hematite (Fe2O3)) — mineral

Hematite

Hematite (Fe2O3)

Specular Hematite (Hematite (Fe2O3)) — mineral

Specular Hematite

Hematite (Fe2O3)

Yellow Ochre / Limonite (Hydrated ferric oxide (FeO(OH)·nH2O)) — mineral

Yellow Ochre / Limonite

Hydrated ferric oxide (FeO(OH)·nH2O)

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

Hematite

Hematite (Iron(III) oxide, Fe2O3)

Limonite (Limonite (Hydrated iron oxide mixture, FeO(OH)·nH2O)) — mineral

Limonite

Limonite (Hydrated iron oxide mixture, FeO(OH)·nH2O)

Peacock Ore (Bornite/Chalcopyrite) (Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2)) — mineral

Peacock Ore (Bornite/Chalcopyrite)

Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2)

Limonite (Ironstone) (Limonite (FeOO·nH2O)) — mineral

Limonite (Ironstone)

Limonite (FeOO·nH2O)

Limonite (Iron Ore) (Limonite (Hydrous iron(III) oxide-hydroxide mixture, primarily FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Limonite (Hydrous iron(III) oxide-hydroxide mixture, primarily FeO(OH)·nH2O)

Specular Hematite (Hematite (Fe2O3)) — mineral

Specular Hematite

Hematite (Fe2O3)

Limonite (Ironstone Concretion) (Limonite (Hydrous ferric oxide mixture, FeO(OH)·nH2O)) — sedimentary

Limonite (Ironstone Concretion)

Limonite (Hydrous ferric oxide mixture, FeO(OH)·nH2O)

Ironstone (with Limonite/Goethite) (Ferruginous Sedimentary Rock (contains Limonite FeO(OH)·nH2O and Hematite Fe2O3)) — sedimentary

Ironstone (with Limonite/Goethite)

Ferruginous Sedimentary Rock (contains Limonite FeO(OH)·nH2O and Hematite Fe2O3)

Limonite / Goethite (Ironstone Nodule) (Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)) — mineral

Limonite / Goethite (Ironstone Nodule)

Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)

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

Hematite

Iron(III) oxide (Fe2O3)

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

Hematite

Iron(III) oxide (Fe2O3)

Limonite (Hydrated Iron Oxide / Bog Iron) (FeO(OH)·nH2O) — Mineral (Sedimentary context)

Limonite (Hydrated Iron Oxide / Bog Iron)

FeO(OH)·nH2O

Mineral (Sedimentary context)

Bornite (Copper Iron Sulfide (Cu5FeS4)) — mineral

Bornite

Copper Iron Sulfide (Cu5FeS4)

Limonite (Yellow Ochre) (Limonite (an amorphous mixture of hydrated iron oxides, primarily FeO(OH)·nH2O)) — mineral

Limonite (Yellow Ochre)

Limonite (an amorphous mixture of hydrated iron oxides, primarily FeO(OH)·nH2O)

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

Hematite

Iron(III) oxide (Fe2O3)

Chalcopyrite (or Pyrite Ore) (CuFeS2 (Copper Iron Sulfide)) — mineral

Chalcopyrite (or Pyrite Ore)

CuFeS2 (Copper Iron Sulfide)

Hematite (Hematite (Α-Fe2O3)) — mineral

Hematite

Hematite (Α-Fe2O3)

Blue Slag Glass (Anthropogenic Amorphous Silicon Dioxide) — mineral

Blue Slag Glass

Anthropogenic Amorphous Silicon Dioxide

Yellow Ochre / Limonite (Limonite (FeO(OH)·nH2O)) — Mineral

Yellow Ochre / Limonite

Limonite (FeO(OH)·nH2O)

Hematite Mineral Ore (Iron(III) oxide (Fe2O3)) — mineral

Hematite Mineral Ore

Iron(III) oxide (Fe2O3)

Specular Hematite (Specularite) (Hematite (Fe2O3)) — mineral

Specular Hematite (Specularite)

Hematite (Fe2O3)

Chalcopyrite (Copper Iron Sulfide (CuFeS2)) — mineral

Chalcopyrite

Copper Iron Sulfide (CuFeS2)

Bauxite (Bauxite (Al(OH)3, AlO(OH))) — sedimentary

Bauxite

Bauxite (Al(OH)3, AlO(OH))