Mineral (Metamorphic Pseudomorph)

Rhodonite

Rhodonite (Manganese Silicate), chemical formula: (Mn,Fe,Mg,Ca)SiO3

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Green Aventurine

SiO2 (Silicon Dioxide with Fuchsite inclusions)

Magnetite-rich Iron Ore

Magnetite (Fe3O4)

Yellow Apatite

Fluorapatite (Ca5(PO4)3(F,Cl,OH))

Gneiss (with Quartzite layers)

Gneissic Metamorphic Rock

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2) with Hematite/Limonite

Gneiss

Metamorphic Gneiss

Magnetite (Iron Ore)

Iron(II,III) oxide (Fe3O4)

Galena

Lead Sulfide (PbS)

Jade (likely Jadeite)

Jadeite (a pyroxene mineral) or Nephrite (a variety of amphibole mineral)

Small tumbled pebble (likely quartz or feldspar)

Indeterminate; probable quartz (SiO₂) or feldspar

Garnet

Garnet group: X3Y2(SiO4)3 (commonly Almandine-Pyrope series)

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Dumortierite Quartz

Al7BO3(SiO4)3O3 (Aluminum borate silicate)

Unakite Epidote-Granite

Unakite (Epidotized Granite)

Kyanite in Quartz

Kyanite (Al2SiO5) with Quartz (SiO2)

Mica Schist

Mica Schist (primarily Muscovite or Biotite sheet silicates)

Schist (Greenschist / Mica Schist)

Metamorphic rock rich in platy minerals (e.g., Chlorite/Mica schist)

Rhodonite

Rhodonite (MnSiO3)

Magnetite or Magnetic Iron Ore

Magnetite (Fe3O4)

Gneiss (probable banded metamorphic rock)

Banded gneiss; typically quartz–feldspar–mica assemblage

Iron-stained quartz vein rock

Quartz-rich vein material, predominantly SiO₂, with iron oxyhydroxides (goethite/limonite) and likely sulfide alteration

Quartz pebble

Silicon dioxide (SiO2)

Granitic Gneiss

Gneiss (high-grade metamorphic rock)

Banded Gneiss

Gneiss (Metamorphic Rock)

Greenstone / altered mafic rock

Likely chlorite–epidote–actinolite schist or altered basalt (greenstone); exact identification requires thin-section or chemical testing.

Pink Feldspar (Orthoclase)

Orthoclase Feldspar (KAlSi3O8)

Ruby in Zoisite

Anyolite (Zoisite with Corundum) Member of the Epidote Group

Weathered gneiss

Foliated gneiss, chiefly quartz–feldspar–mica

Yellow Aventurine

Quartz (Silicon Dioxide - SiO2) with inclusions of Mica

Magnetite with Quartz

Magnetite (Fe3O4)

Quartzite with Hematite staining

Quartzite (SiO2)

Epidote

Epidote Group (e.g., Clinozoisite, Epidote, Piemontite), Epidote formula: Ca2(Al,Fe)3(SiO4)3(OH)

Epidote

Epidote (Ca2(Al, Fe)3(SiO4)3(OH))

Magnetite or Hematite Nodule

Iron Oxide (Fe3O4 or Fe2O3)

Massive White Quartz

Silicon Dioxide (SiO2)

Magnetite / Lodestone

Magnetite (Fe3O4)

Green Aventurine

Aventurine Quartz (SiO2 + Fuchsite inclusions)

Magnetite / Hematite mix

Magnetite (Fe3O4) and Hematite (Fe2O3)

Blue Quartz

Silicon Dioxide (SiO2) with inclusions

Garnet

Pyrope or Almandine (X3Y2(SiO4)3)