Mineral (Refined Metal)

Pyrite

Iron Sulfide (FeS2)

Proustite

Proustite (Ag3AsS3)

Pyrite

Iron Sulfide (FeS2)

Sunstone

Aventurine Feldspar ((Ca,Na)(Al,Si)4O8)

Hematite

Iron(III) oxide (Fe2O3)

Sunstone

Aventurine Feldspar ((Ca,Na)(Al,Si)4O8)

Native Copper in Basalt

Amygdaloidal Basalt with Native Copper (Cu)

Specular Hematite

Hematite (Fe2O3)

Shale with Pyrite

Clastic sedimentary rock containing Iron Disulfide (FeS2)

Hematite

Iron Oxide (Fe2O3)

Magnetite

Magnetite (Fe3O4)

Pyrite

Iron Sulfide (FeS2)

Bornite (Peacock Ore)

Bornite (Cu5FeS4)

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Pyrite Cube in Matrix

Iron Sulfide (FeS2)

Bog Iron (Limonite)

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

Fluorite

Calcium Fluoride (CaF2)

Tumbled hematite (likely hematite-rich ironstone)

Hematite, Fe₂O₃; possibly mixed with magnetite or goethite

Hematite

Iron(III) oxide (Fe2O3)

Pyrite

Iron Sulfide (FeS2)

Hematite Nodule

Hematite (Fe2O3)

Tourmalinated Quartz / Tourmaline in Matrix

Silicate mineral group (Schorl / Quartz)

Pyrite Nodule

Iron Sulfide (FeS2)

Hematite

Iron(III) oxide (Fe2O3)

Shungite

Carbon-rich mineraloid (Amorphous carbon)

Galena

Lead sulfide (PbS)

Limonite / Goethite (Iron Ore Mineral nodule)

FeO(OH)·nH2O / FeO(OH)

Pyrite

Iron Disulfide (FeS2)

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Hematite

Iron(III) oxide (Fe2O3)

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Black Tourmaline

Schorl (Sodium iron aluminum boron silicate hydroxide)

Hematite

Iron Oxide (Fe2O3)

Specular Hematite (Iron Ore)

Hematite (Alpha-Fe2O3)

Schorl (Black Tourmaline)

NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Gold

Native Gold (Au)

Black Tourmaline

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

Pyrite

Iron Sulfide (FeS2)

Magnetite (Iron Ore)

Magnetite (Fe3O4)

Pyrite

Iron Sulfide (FeS2)

Hematite

Iron(III) oxide (Fe2O3)