Anthropic Metallic Specimen

Tiger Iron

Tiger Iron (A complex combination of Hematite Fe2O3, Red Jasper SiO2, and Tiger's Eye SiO2/FeOOH)

Vesicular Basalt with Pyrite

Basalt (MgFe2+)(Si,Al)2O6 containing FeS2 inclusions

Iron Meteorite

Siderite (comprised primarily of Kamacite and Taenite alloys)

Hematite

Iron(III) oxide (Fe2O3)

Zinc Ore (Sphalerite in Matrix)

Sphalerite (Zn,Fe)S within a carbonate or silicate host rock

Gold-bearing Quartz with Pyrite

Quartz (SiO2) with Gold (Au) and Pyrite (FeS2)

Ironstone with Pyrite

Ferruginous Sandstone (Fe2O3) with minor Sulfide minerals (FeS2)

Lapis Lazuli

Lapis Lazuli (Complex silicate mixture)

Shale with Pyrite

Clastic sedimentary rock containing Iron Disulfide (FeS2)

Schist

Mica Schist

Blue Celestite (with Galena)

Strontium sulfate (SrSO4) and Lead sulfide (PbS)

Industrial Slag

Anthropogenic Vitreous Slag

Aura Quartz

Titanium/Titanium-Gold treated Silicon Dioxide (SiO2)

Pyrite-bearing Schist

Pyritic Quartz-Mica Schist with FeS2 inclusion

Magnetite (Iron Ore)

Magnetite (Fe3O4)

Mica Schist

Crystalline Schist (often containing Muscovite, Biotite, and Quartz)

Sandstone with Desert Varnish

Arenite (SiO2 predominantly) with Ferromanganese coating

Mica Schist

Mica Schist (predominantly Muscovite/Biotite)

Hematite

Iron(III) oxide (Fe2O3)

Banded Iron Formation (BIF) / Tiger Iron variety

Banded Iron Formation (composed primarily of Magnetite Fe3O4, Hematite Fe2O3, and Chert/Quartz SiO2)

Sunstone

Oligoclase (Feldspar variety), (Na,Ca)(Si,Al)4O8

Pyrite

Iron Sulfide (FeS2)

Pallasite Meteorite (Sliced and Polished)

Pallasite (Iron-Nickel Matrix with Olivine crystals)

Magnetite (Lodestone variant)

Magnetite (Fe3O4)

Hematite with Magnetite

Iron Oxide (Fe2O3)

Pyrite on Quartz matrix

Iron Disulfide (FeS2) on Silicon Dioxide (SiO2)

Specular Hematite with Pyrite

Iron Oxide (Fe2O3) with Iron Sulfide (FeS2)

Moqui Marble

Iron Oxide Concretion

Pyritic Sandstone

Clastic Sedimentary Rock (Pyrite-bearing Sandstone)

Mica Schist

Mica Schist (primarily Muscovite or Biotite)

Banded Iron Formation (Red Jasper and Hematite Chert)

Banded Iron Formation (BIF); Fe2O3 (Hematite) + SiO2 (Quartz/Jasper)

Lapis Lazuli

Complex metamorphic rock primarily composed of Lazurite ((Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2), Calcite, and Pyrite

Mica Schist

Mica Schist (primarily Muscovite and Biotite phyllosilicates)

Schist

Mica Schist (variety: Muscovite/Biotite Schist)

Meteorite (Chondrite)

Stony Meteorite (Ordinary Chondrite)

Iron Meteorite Fragment

Siderite (Geological term for iron meteorite class - Fe/Ni alloy)

Fluorite (Rainbow Fluorite Point)

Calcium Fluoride (CaF2)

Chondrite Meteorite

Ordinary Chondrite (L or H group)

Schist

Schist (Crystalline metamorphic rock)

Pyrite on Quartz (Fool's Gold in Quartz)

Iron Sulfide (FeS2) on Silicon Dioxide (SiO2)

Schist (Graphite or Mica rich)

Crystalline Schist (often containing Muscovite, Biotite, or Graphite)

Pyrite in Gossan

Iron Sulfide (FeS2) in Ferruginous Rock