Rock Identifier

Category

Mineral (Iron Ore)

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

Agate (Carnelian-Blue Agate mix) (Silicon Dioxide (SiO2)) — mineral

Agate (Carnelian-Blue Agate mix)

Silicon Dioxide (SiO2)

Yellow Quartz (Citrine or Iron-Stained Quartz) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine or Iron-Stained Quartz)

Silicon Dioxide (SiO2)

Red Jasper (Opaque Chalcedony) (Silicon Dioxide (SiO2) with Hematite impurities) — mineral

Red Jasper (Opaque Chalcedony)

Silicon Dioxide (SiO2) with Hematite impurities

Amethyst (SiO2 (Silicon Dioxide with Iron impurities and natural radiation influence)) — mineral

Amethyst

SiO2 (Silicon Dioxide with Iron impurities and natural radiation influence)

Amethyst (Faceted) (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst (Faceted)

Silicon Dioxide (SiO2) with iron impurities

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

Carnelian Agate

Carnelian (Silicon Dioxide, SiO2)

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)) — mineral

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)

Tree Agate (Dendritic Agate (Silicon Dioxide, SiO2 + Manganese/Iron oxides)) — mineral

Tree Agate

Dendritic Agate (Silicon Dioxide, SiO2 + Manganese/Iron oxides)

Carnelian Agate (Silicon Dioxide (SiO2) - Chalcedony variety) — mineral

Carnelian Agate

Silicon Dioxide (SiO2) - Chalcedony variety

Schorl (Black Tourmaline) in Quartz Matrix (Schorl: NaFe3Al6(BO3)3Si6O18(OH)4 (Complex Borosilicate)) — mineral

Schorl (Black Tourmaline) in Quartz Matrix

Schorl: NaFe3Al6(BO3)3Si6O18(OH)4 (Complex Borosilicate)

Amethyst (SiO2 (Silicon Dioxide) - Purple variety of Quartz) — mineral

Amethyst

SiO2 (Silicon Dioxide) - Purple variety of Quartz

Carnelian (Carnelian (Silica, SiO2)) — mineral

Carnelian

Carnelian (Silica, SiO2)

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

Yellow Quartz (Citrine Quartz)

Silicon Dioxide (SiO2)

Red Tiger's Eye (SiO2 (Silicon Dioxide) - Pseudomorph of Quartz after Crocidolite) — mineral

Red Tiger's Eye

SiO2 (Silicon Dioxide) - Pseudomorph of Quartz after Crocidolite

Amethyst (Amethyst (Silicon Dioxide with iron impurities), SiO2) — mineral

Amethyst

Amethyst (Silicon Dioxide with iron impurities), SiO2

Raw Citrine (Yellow Quartz) (Citrine / Silicon Dioxide (SiO2)) — mineral

Raw Citrine (Yellow Quartz)

Citrine / Silicon Dioxide (SiO2)

Bloodstone (Heliotrope) (Silicon Dioxide (SiO2) with inclusions of Iron Oxide or Chlorite) — mineral

Bloodstone (Heliotrope)

Silicon Dioxide (SiO2) with inclusions of Iron Oxide or Chlorite

Carnelian (Banded Agate) (Carnelian Chalcedony (SiO2)) — mineral

Carnelian (Banded Agate)

Carnelian Chalcedony (SiO2)

Red Jasper (Silicon dioxide (SiO2) with iron oxide inclusions) — mineral

Red Jasper

Silicon dioxide (SiO2) with iron oxide inclusions

Carnelian (Carnelian (Cryptocrystalline Quartz, SiO2)) — mineral

Carnelian

Carnelian (Cryptocrystalline Quartz, SiO2)

Milky Quartz with Iron Staining (Silicon Dioxide (SiO2)) — mineral

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)

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

Carnelian

Carnelian (Silicon Dioxide, SiO2)

Sandstone (Red/Brown Variety) (Arenite (SiO2 with iron oxide impurities)) — sedimentary

Sandstone (Red/Brown Variety)

Arenite (SiO2 with iron oxide impurities)

Jasper (Iron Oxide Rich) (Silicon Dioxide (SiO2) with Fe2O3 (Hematite/Goethite) inclusions) — sedimentary

Jasper (Iron Oxide Rich)

Silicon Dioxide (SiO2) with Fe2O3 (Hematite/Goethite) inclusions

Moss Agate / Chalcedony (Silicon Dioxide (SiO2)) — mineral

Moss Agate / Chalcedony

Silicon Dioxide (SiO2)

Milky Quartz with Iron Staining (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz with Iron Staining

Quartz (Silicon Dioxide, SiO2)

Rose Quartz (Quartz (Silicon Dioxide) - SiO2) — mineral

Rose Quartz

Quartz (Silicon Dioxide) - SiO2

Moss Agate (Cryptocrystalline Quartz (SiO2 with Manganese or Iron Oxide inclusions)) — mineral

Moss Agate

Cryptocrystalline Quartz (SiO2 with Manganese or Iron Oxide inclusions)

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

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

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

Amethyst (Druzy Quartz)

Amethyst (Silicon Dioxide - SiO2 with iron impurities)

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

Amethyst

Silicon Dioxide (SiO2) with Fe3+ impurities

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

Amethyst (Tumbled)

Amethyst (Silicon Dioxide with Iron impurities) - SiO2

Green Moss Agate (Agate (Silicon Dioxide - SiO2) with inclusions of hornblende or chlorite) — mineral

Green Moss Agate

Agate (Silicon Dioxide - SiO2) with inclusions of hornblende or chlorite

Tree Agate (or Moss Agate), faceted into a crystal tower (Dendritic Agate (Silicon Dioxide, SiO2)) — Mineral

Tree Agate (or Moss Agate), faceted into a crystal tower

Dendritic Agate (Silicon Dioxide, SiO2)

Almandine Garnet (weathered) (Almandine (Fe3Al2(SiO4)3)) — mineral

Almandine Garnet (weathered)

Almandine (Fe3Al2(SiO4)3)

Citrine (Silicon Dioxide (SiO2)) — Mineral

Citrine

Silicon Dioxide (SiO2)

Milky Quartz with Iron Staining (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz with Iron Staining

Quartz (Silicon Dioxide, SiO2)

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

Amethyst

Amethyst (Silicon Dioxide, SiO2 with Iron impurities)

Dendritic Opal (Hydrated Silica (SiO2·nH2O) with Manganese or Iron Oxide inclusions) — mineral

Dendritic Opal

Hydrated Silica (SiO2·nH2O) with Manganese or Iron Oxide inclusions

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

Carnelian (Red-Orange Chalcedony)

Silicon Dioxide (SiO2)

Agate (Moss or Dendritic Agate) (Chalcedony (Silicon Dioxide, SiO2)) — mineral

Agate (Moss or Dendritic Agate)

Chalcedony (Silicon Dioxide, SiO2)

Basalt (Basalt (Mafic Extrusive Igneous Rock)) — igneous

Basalt

Basalt (Mafic Extrusive Igneous Rock)