Metamorphic Mineral

Rough amber-colored quartz or calcite fragment

Likely quartz (SiO₂) or calcite (CaCO₃); exact identification requires testing

Quartz-rich rock, possibly milky quartz or quartzite

Quartz (SiO₂); if quartzite, recrystallized quartz sandstone

Dark gray metamorphic rock fragment

Likely slate or fine-grained schist; mineral composition cannot be confirmed from the image

Greenschist

Greenschist (containing Chlorite, Epidote, and Actinolite)

Amazonite

Microcline (K(AlSi3O8))

Schist (Greenschist / Mica Schist)

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

Epidote

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

Schist

Mica Schist

Mica Schist

Mica Schist (Quartz-Mica Schist)

Orange feldspar pebble (likely potassium feldspar)

Likely orthoclase or microcline, KAlSi₃O₈

Quartz Vein in Greenstone

Hydrothermal Quartz (SiO2) with Chlorite/Epidote Schist host rock

Mica flakes (Muscovite)

Muscovite mica (KAl2(AlSi3O10)(F,OH)2)

Raw garnet-rich metamorphic rock

Likely garnet-bearing schist or garnetite; garnet-group silicates, commonly almandine (Fe₃Al₂Si₃O₁₂)

Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Small dark-brown mineral pebble, identity uncertain

Not identifiable from the image; possibilities include iron-rich minerals such as magnetite or hematite

Quartz (Pink / Ferruginous)

Silicon Dioxide (SiO2)

Microcline Feldspar

KAlSi3O8

Calcite

Calcium Carbonate (CaCO3)

Prehnite

Ca2Al(AlSi3O10)(OH)2

Muscovite Mica

KAl2(AlSi3O10)(F,OH)2

Banded gneiss pebble

Gneiss, typically quartz–feldspar–mica assemblage

Quartz (Tumbled)

SiO2 (Silicon Dioxide)

Quartz (Citrine or Iron-Stained)

SiO2

Small tumbled pebble (likely quartz or feldspar)

Indeterminate; probable quartz (SiO₂) or feldspar

Mica-rich schist (likely biotite–muscovite schist)

Mica schist; composed chiefly of muscovite and/or biotite with quartz and feldspar

Banded gneiss pebble

Gneiss, a foliated metamorphic rock composed mainly of quartz, feldspar, and dark biotite or amphibole

Magnetite or Magnetic Iron Ore

Magnetite (Fe3O4)

Lazulite Quartzite

Quartzite with Lazulite (SiO2 with (Mg,Fe)Al2(PO4)2(OH)2)

Greenstone with Epidote or Quartz veins

Metabasalt (Greenstone facies)

Rhodonite

Rhodonite (MnSiO3)

Almandine Garnet in Schist

Almandine, Fe3Al2(SiO4)3

Yellow Aventurine

Quartz (Silicon Dioxide - SiO2) with inclusions of Mica

Magnetite with Quartz

Magnetite (Fe3O4)

Mica-rich schist (probable)

Mica schist, likely muscovite–chlorite schist; exact minerals cannot be confirmed from the image

Serpentinite

Serpentinite, a rock composed mainly of serpentine-group minerals (approximately Mg₃Si₂O₅(OH)₄)

Feldspar (Microcline / Orthoclase)

Potassium Feldspar (KAlSi3O8)

Greenstone pebble

Likely chlorite- and/or actinolite-bearing metamorphic rock; exact composition cannot be determined from the image.

Schist

Mica Schist

Epidote

Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Grey River Stone (Gneiss/Schist mix)

Foliated Metamorphic Rock (variable mineral formula)

Greenstone (likely actinolite-bearing metamorphic rock)

Actinolite-rich greenschist; exact identification requires testing

Magnetite

Magnetite (Fe3O4)