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

Limonite (Ironstone)

Limonite (FeO(OH)·nH2O)

Limonite (Iron Ore Congcretion) (Limonite (a mixture of hydrated iron(III) oxide-hydroxides, FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore Congcretion)

Limonite (a mixture of hydrated iron(III) oxide-hydroxides, FeO(OH)·nH2O)

Magnetite / Iron Ore (Magnetite (Fe3O4)) — mineral

Magnetite / Iron Ore

Magnetite (Fe3O4)

Gossan / Iron-Rich Weathered Rock (Hydrated Iron Oxides / Limonite / Goethite) — mineral

Gossan / Iron-Rich Weathered Rock

Hydrated Iron Oxides / Limonite / Goethite

Limonite with Iron Inclusions (Limonite (Hydrated Iron Oxide, FeO(OH)·nH2O)) — sedimentary

Limonite with Iron Inclusions

Limonite (Hydrated Iron Oxide, FeO(OH)·nH2O)

Polished black stone, likely hematite (Hematite (Fe₂O₃), possibly black jasper or basalt) — mineral

Polished black stone, likely hematite

Hematite (Fe₂O₃), possibly black jasper or basalt

Hematite (Hematite (Fe2O3)) — mineral

Hematite

Hematite (Fe2O3)

Limonite Concretion (Limonite (FeO(OH)·nH2O)) — sedimentary

Limonite Concretion

Limonite (FeO(OH)·nH2O)

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

Limonite (Iron Ore / Ochre)

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

Likely hematite-rich ironstone fragment (Hematite (α-Fe₂O₃), possibly with other iron oxides) — mineral

Likely hematite-rich ironstone fragment

Hematite (α-Fe₂O₃), possibly with other iron oxides

Specular hematite (specularite) (Hematite, iron(III) oxide (Fe₂O₃), micaceous/specular variety) — mineral

Specular hematite (specularite)

Hematite, iron(III) oxide (Fe₂O₃), micaceous/specular variety

Possibly raw hematite or magnetite (Hematite (Fe₂O₃) or magnetite (Fe₃O₄)) — mineral

Possibly raw hematite or magnetite

Hematite (Fe₂O₃) or magnetite (Fe₃O₄)

Limonite/Goethite on Shale (Hydrous ferric oxides (FeO(OH)·nH2O) often associated with argillaceous rock) — sedimentary

Limonite/Goethite on Shale

Hydrous ferric oxides (FeO(OH)·nH2O) often associated with argillaceous rock

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

Red Hematite (Iron Ore)

Hematite (Fe2O3)

Iron-stained quartz-rich sulfide ore (probable gold-bearing quartz vein) (Quartz (SiO₂) with iron oxides/hydroxides, chiefly hematite–goethite; possible pyrite remnants) — mineral

Iron-stained quartz-rich sulfide ore (probable gold-bearing quartz vein)

Quartz (SiO₂) with iron oxides/hydroxides, chiefly hematite–goethite; possible pyrite remnants

Iron Slag (Anthropogenic Ferro-silicate) — mineral

Iron Slag

Anthropogenic Ferro-silicate

Limonite / Ironstone Concretion (Hydrated Iron Oxide (FeO(OH)%C2%B7nH2O)) — sedimentary

Limonite / Ironstone Concretion

Hydrated Iron Oxide (FeO(OH)%C2%B7nH2O)

Limonite / Goethite Ironstone (FeO(OH)·nH2O (Hydrous iron oxide)) — mineral

Limonite / Goethite Ironstone

FeO(OH)·nH2O (Hydrous iron oxide)

Specular Hematite (Iron Oxide (Fe2O3)) — mineral

Specular Hematite

Iron Oxide (Fe2O3)

Banded Iron Formation (Banded Iron Formation (BIF)) — sedimentary

Banded Iron Formation

Banded Iron Formation (BIF)

Probable magnetite-bearing rock (Magnetite (Fe₃O₄), possibly in a fine-grained host rock) — mineral

Probable magnetite-bearing rock

Magnetite (Fe₃O₄), possibly in a fine-grained host rock

Limonite Concretion (Hydrated Iron Oxide-Hydroxide, FeO(OH)·nH2O) — mineral

Limonite Concretion

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

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

Limonite (Ironstone Concretion)

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

Likely tumbled hematite-rich ironstone (Hematite, Fe₂O₃, possibly mixed with goethite or magnetite) — mineral

Likely tumbled hematite-rich ironstone

Hematite, Fe₂O₃, possibly mixed with goethite or magnetite

Polished hematite-rich ironstone (Hematite (Fe₂O₃), likely in a magnetite/goethite-bearing ironstone matrix) — mineral

Polished hematite-rich ironstone

Hematite (Fe₂O₃), likely in a magnetite/goethite-bearing ironstone matrix

Turquoise and Hematite (Turquoise (CuAl6(PO4)4(OH)8·4H2O) and Hematite (Fe2O3)) — mineral

Turquoise and Hematite

Turquoise (CuAl6(PO4)4(OH)8·4H2O) and Hematite (Fe2O3)

Limonite (Ironstone) (Hydrous ferric oxides (FeO(OH)·nH2O)) — mineral

Limonite (Ironstone)

Hydrous ferric oxides (FeO(OH)·nH2O)

Limonite Geode (Ironstone Concretion) (Goethite/Limonite FeO(OH)·nH2O) — sedimentary

Limonite Geode (Ironstone Concretion)

Goethite/Limonite FeO(OH)·nH2O

Dark rock/mineral fragment (Undetermined; possibly magnetite-rich basalt or iron sulfide) — mineral

Dark rock/mineral fragment

Undetermined; possibly magnetite-rich basalt or iron sulfide

Magnetite / Hematite mix (Magnetite (Fe3O4) and Hematite (Fe2O3)) — mineral

Magnetite / Hematite mix

Magnetite (Fe3O4) and Hematite (Fe2O3)

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

Limonite (Gossan)

FeO(OH)·nH2O (Hydrated Iron Oxide)

Iron-rich laterite or limonite/goethite concretion (Hydrated iron oxides, chiefly goethite (α-FeO(OH)) and limonite (FeO(OH)·nH₂O)) — mineral

Iron-rich laterite or limonite/goethite concretion

Hydrated iron oxides, chiefly goethite (α-FeO(OH)) and limonite (FeO(OH)·nH₂O)

Botryoidal hematite-rich iron ore (probable) (Hematite, Fe₂O₃, possibly mixed with goethite/limonite) — mineral

Botryoidal hematite-rich iron ore (probable)

Hematite, Fe₂O₃, possibly mixed with goethite/limonite

Magnetite (Iron Ore) (Magnetite (Fe3O4)) — mineral

Magnetite (Iron Ore)

Magnetite (Fe3O4)

Red-brown iron-rich mineral specimen, likely hematite/goethite (Hematite (Fe₂O₃), possibly mixed with goethite (FeO(OH)) and iron oxides) — mineral

Red-brown iron-rich mineral specimen, likely hematite/goethite

Hematite (Fe₂O₃), possibly mixed with goethite (FeO(OH)) and iron oxides

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

Limonite (Ironstone)

Hydrated Iron Oxide (FeO(OH)·nH2O)

Iron-stained Quartz (Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3/FeO(OH))) — mineral

Iron-stained Quartz

Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3/FeO(OH))

Chrysocolla-bearing copper ore (Chrysocolla (hydrated copper aluminum silicate, approximately (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O), likely mixed with malachite, quartz, and limonite) — mineral

Chrysocolla-bearing copper ore

Chrysocolla (hydrated copper aluminum silicate, approximately (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O), likely mixed with malachite, quartz, and limonite

Tumbled hematite (Hematite (iron(III) oxide, Fe₂O₃)) — mineral

Tumbled hematite

Hematite (iron(III) oxide, Fe₂O₃)

Hematite Nodule (Hematite (Fe2O3)) — mineral

Hematite Nodule

Hematite (Fe2O3)

Peacock Ore (Bornite (Cu5FeS4)) — mineral

Peacock Ore

Bornite (Cu5FeS4)

Rounded iron-rich stone, likely hematite-bearing sandstone or ironstone (Hematite/goethite-bearing ferruginous sandstone or ironstone; composition cannot be confirmed from appearance alone) — sedimentary

Rounded iron-rich stone, likely hematite-bearing sandstone or ironstone

Hematite/goethite-bearing ferruginous sandstone or ironstone; composition cannot be confirmed from appearance alone