Rock Identifier

Category

Mineral (Iron Ore)

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

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Rose Quartz (Silicon dioxide (SiO2)) — mineral

Rose Quartz

Silicon dioxide (SiO2)

Quartzite (specifically an iron-stained or Carnelian-colored variety) (Silicon Dioxide (SiO2) with iron oxide inclusions) — metamorphic

Quartzite (specifically an iron-stained or Carnelian-colored variety)

Silicon Dioxide (SiO2) with iron oxide inclusions

Basalt with Calcite Veins (Basalt (containing CaCO3 inclusions)) — igneous

Basalt with Calcite Veins

Basalt (containing CaCO3 inclusions)

Chert (Jasper/Carnelian variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Carnelian variety)

Microcrystalline Quartz (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Pink Quartz (Silicon Dioxide (SiO2)) — mineral

Pink Quartz

Silicon Dioxide (SiO2)

Banded Agate / Lace Agate (Agate (Silica/Quartz) - SiO2) — mineral

Banded Agate / Lace Agate

Agate (Silica/Quartz) - SiO2

Sandstone Concretion (Moqui Marble (Iron-oxide concretion)) — sedimentary

Sandstone Concretion

Moqui Marble (Iron-oxide concretion)

Sandstone (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone

Arenite (composed primarily of SiO2)

Sandstone (Sandstone (clastic sedimentary rock), primarily SiO2) — sedimentary

Sandstone

Sandstone (clastic sedimentary rock), primarily SiO2

Amethyst (Amethyst (Silicon Dioxide, SiO2)) — mineral

Amethyst

Amethyst (Silicon Dioxide, SiO2)

Carnelian Agate (Silicon Dioxide (SiO2) with iron oxide impurities) — mineral

Carnelian Agate

Silicon Dioxide (SiO2) with iron oxide impurities

Carnelian (a variety of Chalcedony) (Silicon Dioxide (SiO₂)) — Mineral

Carnelian (a variety of Chalcedony)

Silicon Dioxide (SiO₂)

Banded Agate (Carnelian type) (Agate (Cryptocrystalline Quartz, SiO2)) — mineral

Banded Agate (Carnelian type)

Agate (Cryptocrystalline Quartz, SiO2)

Red Jasper (Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)) — Mineral

Red Jasper

Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)

Smoky Quartz with Iron Inclusions (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Bloodstone (Heliotrope) (Chalcedony (SiO2) with inclusions of Iron Oxide or Red Jasper) — mineral

Bloodstone (Heliotrope)

Chalcedony (SiO2) with inclusions of Iron Oxide or Red Jasper

Blue Agate (Dyed) (Silicon Dioxide (SiO2) with artificial pigment) — mineral

Blue Agate (Dyed)

Silicon Dioxide (SiO2) with artificial pigment

Carnelian (Silicon dioxide (SiO2) with iron oxide impurities) — mineral

Carnelian

Silicon dioxide (SiO2) with iron oxide impurities

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

Amethyst

Silicon Dioxide (SiO2) with trace Iron impurities

Carnelian (Carnelian Agate (Silica: SiO2)) — mineral

Carnelian

Carnelian Agate (Silica: SiO2)

Amethyst (Amethyst (Silicon Dioxide - SiO2 with Iron impurities)) — mineral

Amethyst

Amethyst (Silicon Dioxide - SiO2 with Iron impurities)

Amethyst (Chevron or Banded) (Silicon Dioxide with impurities (SiO2)) — mineral

Amethyst (Chevron or Banded)

Silicon Dioxide with impurities (SiO2)

Amethyst (Silicon Dioxide (SiO2) with trivalent iron (Fe3+) impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with trivalent iron (Fe3+) impurities

Carnelian (a variety of Chalcedony) (SiO2 (Silicon Dioxide with Iron Oxide impurities)) — mineral

Carnelian (a variety of Chalcedony)

SiO2 (Silicon Dioxide with Iron Oxide impurities)

Carnelian (Orange Chalcedony) (Silicon Dioxide (SiO2) with iron oxide impurities) — mineral

Carnelian (Orange Chalcedony)

Silicon Dioxide (SiO2) with iron oxide impurities

Crazy Lace Agate (Cryptocrystalline Quartz (Silicon Dioxide, SiO2)) — mineral

Crazy Lace Agate

Cryptocrystalline Quartz (Silicon Dioxide, SiO2)

Ferruginous Quartz (Hematoid Quartz) (Silicon Dioxide (SiO2) with Hematite or Goethite inclusions) — mineral

Ferruginous Quartz (Hematoid Quartz)

Silicon Dioxide (SiO2) with Hematite or Goethite inclusions

Carnelian (Carnelian (Silicon Dioxide, SiO2)) — mineral

Carnelian

Carnelian (Silicon Dioxide, SiO2)

Red Carnelian (Carnelian (Silicon Dioxide - SiO2)) — mineral

Red Carnelian

Carnelian (Silicon Dioxide - SiO2)

Carnelian Agate (Silicon Dioxide (SiO2) with iron oxide impurities) — mineral

Carnelian Agate

Silicon Dioxide (SiO2) with iron oxide impurities

Amethyst (Amethyst (Silicon Dioxide - SiO2 with ferric iron impurities)) — mineral

Amethyst

Amethyst (Silicon Dioxide - SiO2 with ferric iron impurities)

Chert Breccia (Yellow Jasper) (Silicon Dioxide (SiO2) - Brecciated Chert) — sedimentary

Chert Breccia (Yellow Jasper)

Silicon Dioxide (SiO2) - Brecciated Chert

Olivine (Peridot) (Magnesium Iron Silicate (Mg, Fe)2SiO4) — mineral

Olivine (Peridot)

Magnesium Iron Silicate (Mg, Fe)2SiO4

Iolite (Cordierite) (Cordierite (Magnesium iron aluminum cyclosilicate), Mg2Al4Si5O18) — metamorphic

Iolite (Cordierite)

Cordierite (Magnesium iron aluminum cyclosilicate), Mg2Al4Si5O18

Chert (Iron-stained) (Chert (SiO2)) — sedimentary

Chert (Iron-stained)

Chert (SiO2)

Sandstone (Quartz Sandstone (predominantly)) — Sedimentary

Sandstone

Quartz Sandstone (predominantly)

Jasper (Jasper (Silicate mineral, SiO2)) — sedimentary

Jasper

Jasper (Silicate mineral, SiO2)

Basalt (Basalt (composition of plagioclase, pyroxene, and olivine)) — igneous

Basalt

Basalt (composition of plagioclase, pyroxene, and olivine)

Red Jasper (Silicon Dioxide with Hematite impurities (SiO2 + Fe2O3)) — mineral

Red Jasper

Silicon Dioxide with Hematite impurities (SiO2 + Fe2O3)

Carnelian (Carnelian (Silicon Dioxide - SiO2)) — mineral

Carnelian

Carnelian (Silicon Dioxide - SiO2)