Rock Identifier

Category

Mineral, Specifically An Iron Ore

Browse mineral, specifically an iron ore specimens identified by the Rock Identifier community.

Learn about Mineral, Specifically An Iron Ore in the encyclopedia

Peacock Ore

Bog Iron

Tiger Iron

Banded Iron Formation

Banded Iron Formation

Ilmenite

Goethite

Chromite

Magnetite

Siderite

Limonite

Bornite

Hematite

Pink Satin Spar (Satin Spar Selenite Dyed) (Gypsum (CaSO4·2H2O)) — mineral

Pink Satin Spar (Satin Spar Selenite Dyed)

Gypsum (CaSO4·2H2O)

Limonite Boxwork / Iron Ore Concretion (FeO(OH)qnH2O (Hydrated iron oxide)) — sedimentary

Limonite Boxwork / Iron Ore Concretion

FeO(OH)qnH2O (Hydrated iron oxide)

Satin Spar (often marketed as Selenite) (Fibrous Gypsum (CaSO4·2H2O)) — mineral

Satin Spar (often marketed as Selenite)

Fibrous Gypsum (CaSO4·2H2O)

Weathered iron-rich rock, possibly basalt or ironstone (Indeterminate; likely Fe-oxide-bearing basaltic rock (commonly magnetite/hematite in a silicate matrix)) — igneous

Weathered iron-rich rock, possibly basalt or ironstone

Indeterminate; likely Fe-oxide-bearing basaltic rock (commonly magnetite/hematite in a silicate matrix)

Limonite (Pseudomorph after Pyrite/Marcasite) (Hydrated Iron Oxide (FeO(OH)·nH2O)) — mineral

Limonite (Pseudomorph after Pyrite/Marcasite)

Hydrated Iron Oxide (FeO(OH)·nH2O)

Gossan (Iron Hat) (Limonitic Gossan (Fe-oxide/hydroxide complex)) — igneous

Gossan (Iron Hat)

Limonitic Gossan (Fe-oxide/hydroxide complex)

Limonite (also known as Yellow Ochre or Brown Hematite) (Limonite (Hydrated iron oxide-hydroxide, FeO(OH)·nH2O)) — Mineral

Limonite (also known as Yellow Ochre or Brown Hematite)

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

Peacock Ore (Bornite (Cu5FeS4)) — mineral

Peacock Ore

Bornite (Cu5FeS4)

Gossan (Iron Hat) (Limonitic Gossan (predominantly FeO(OH)·nH2O)) — igneous/metamorphic derivative

Gossan (Iron Hat)

Limonitic Gossan (predominantly FeO(OH)·nH2O)

igneous/metamorphic derivative

Ironstone / limonite-rich concretion (Hydrated iron oxides, chiefly limonite/goethite (FeO(OH)·nH₂O), possibly with hematite) — mineral

Ironstone / limonite-rich concretion

Hydrated iron oxides, chiefly limonite/goethite (FeO(OH)·nH₂O), possibly with hematite

Weathered iron-rich rock, possibly limonite-bearing sandstone or altered volcanic rock (Limonite/goethite mixture; exact host rock is indeterminate from the image) — mineral

Weathered iron-rich rock, possibly limonite-bearing sandstone or altered volcanic rock

Limonite/goethite mixture; exact host rock is indeterminate from the image

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

Turquoise and Hematite

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

Sandstone (Ferruginous) (Arenite (with Iron Oxide cement)) — sedimentary

Sandstone (Ferruginous)

Arenite (with Iron Oxide cement)

Hematite (Hematite (Fe2O3)) — mineral

Hematite

Hematite (Fe2O3)

Black Tourmaline (Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)) — mineral

Black Tourmaline

Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)

Limonite (often after Pyrite) (Limonite (FeO(OH)·nH2O)) — mineral

Limonite (often after Pyrite)

Limonite (FeO(OH)·nH2O)

Hematite (Hematite (Fe2O3)) — mineral

Hematite

Hematite (Fe2O3)

Chalcopyrite (Copper Iron Sulfide (CuFeS2)) — mineral

Chalcopyrite

Copper Iron Sulfide (CuFeS2)

Chalcopyrite (Copper Iron Sulfide (CuFeS2)) — mineral

Chalcopyrite

Copper Iron Sulfide (CuFeS2)

Ametrine (Ametrine (SiO2 - Silicon Dioxide with varied iron impurities)) — mineral

Ametrine

Ametrine (SiO2 - Silicon Dioxide with varied iron impurities)

Hematite (Hematite (Fe2O3)) — mineral

Hematite

Hematite (Fe2O3)

Iron-rich rock or weathered metallic mineral specimen (Uncertain; possibly limonite/goethite with iron oxides, or a metallic sulfide such as pyrite/chalcopyrite) — mineral

Iron-rich rock or weathered metallic mineral specimen

Uncertain; possibly limonite/goethite with iron oxides, or a metallic sulfide such as pyrite/chalcopyrite

Limonite Pseudomorph after Pyrite (Limonite (Hydrous iron oxides e.g., FeO(OH)·nH2O) pseudomorphing Pyrite (FeS2)) — mineral

Limonite Pseudomorph after Pyrite

Limonite (Hydrous iron oxides e.g., FeO(OH)·nH2O) pseudomorphing Pyrite (FeS2)

Likely weathered iron-rich rock fragment (Probably limonite/goethite-bearing material; exact identification requires testing) — mineral

Likely weathered iron-rich rock fragment

Probably limonite/goethite-bearing material; exact identification requires testing

Tiny rounded metallic-looking pebble, possibly pyrite or a metal-rich mineral (Uncertain from image; possible pyrite (FeS₂), chalcopyrite (CuFeS₂), or magnetite (Fe₃O₄)) — mineral

Tiny rounded metallic-looking pebble, possibly pyrite or a metal-rich mineral

Uncertain from image; possible pyrite (FeS₂), chalcopyrite (CuFeS₂), or magnetite (Fe₃O₄)

Limonite after Pyrite (Pseudomorph) (FeO(OH)·nH2O following FeS2) — mineral

Limonite after Pyrite (Pseudomorph)

FeO(OH)·nH2O following FeS2

Limonite (Limonite (Hydrous iron oxides, predominantly Goethite FeO(OH)·nH2O)) — mineral

Limonite

Limonite (Hydrous iron oxides, predominantly Goethite FeO(OH)·nH2O)

Hematite Nodule (Hematite (Alpha Fe2O3)) — mineral

Hematite Nodule

Hematite (Alpha Fe2O3)

Iron-rich botryoidal limonite/goethite specimen (Limonite (amorphous hydrated iron oxides, chiefly goethite, α-FeO(OH))) — mineral

Iron-rich botryoidal limonite/goethite specimen

Limonite (amorphous hydrated iron oxides, chiefly goethite, α-FeO(OH))

Hematite or Goethite-rich Ironstone (Ironstone (Oxidized Iron Ore)) — sedimentary

Hematite or Goethite-rich Ironstone

Ironstone (Oxidized Iron Ore)

Limonite or Ironstone Nodule (FeO(OH)·nH2O (Hydrated iron(III) oxide-hydroxide)) — sedimentary

Limonite or Ironstone Nodule

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

Ironstone Concretion / Limonite Node (Goethite and Limonite (FeO(OH) nH2O)) — sedimentary

Ironstone Concretion / Limonite Node

Goethite and Limonite (FeO(OH) nH2O)

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — gemstone

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Limonite (FeO(OH)·nH2O) — mineral

Limonite

FeO(OH)·nH2O

Iron Ore (Limonite and Hematite) (Goethite/Limonite (FeO(OH)·nH2O) and Hematite (Fe2O3)) — mineral

Iron Ore (Limonite and Hematite)

Goethite/Limonite (FeO(OH)·nH2O) and Hematite (Fe2O3)

Iron-rich concretion or weathered ironstone (Goethite–hematite-bearing ferruginous concretion; exact identification requires testing) — sedimentary

Iron-rich concretion or weathered ironstone

Goethite–hematite-bearing ferruginous concretion; exact identification requires testing

Limonite Bog Iron (Hydrated iron oxide-hydroxide, FeO(OH)·nH2O) — sedimentary

Limonite Bog Iron

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

Limonite or Ironstone Concretion (FeO(OH)·nH₂O (Hydrated iron oxide-hydroxide)) — mineral

Limonite or Ironstone Concretion

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

Citrine Quartz carving (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz carving

Silicon Dioxide (SiO2)

Specular Hematite with Quartz and Limonite (Hematite (Fe2O3) with Quartz (SiO2) and Limonite (FeO(OH)·nH2O)) — Mineral

Specular Hematite with Quartz and Limonite

Hematite (Fe2O3) with Quartz (SiO2) and Limonite (FeO(OH)·nH2O)

Limonite (with goethite) (Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)) — mineral

Limonite (with goethite)

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

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

Limonite

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