Sedimentary Or Metamorphic (Base Substrate)

Quartz crystal (likely clear quartz)

Quartz, silicon dioxide (SiO₂)

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Quartz Vein in Matrix (Breccia / Host Rock with Quartz)

Silicon Dioxide (SiO2) in Host Rock Matrix

Unidentified weathered rock fragments

Likely mixed silicate rocks; specific identification requires testing

Healer's Gold (Pyrite/Magnetite in Serpentine)

Magnetite (Fe3O4) and Pyrite (FeS2) in Lizardite/Antigorite [Mg3Si2O5(OH)4]

Likely biotite-rich mica schist

Mica schist, chiefly biotite (K(Mg,Fe)₃AlSi₃O₁₀(F,OH)₂); exact identification from image is uncertain

Quartz heart (likely milky/included quartz)

Quartz, silicon dioxide (SiO₂)

Tumbled chalcedony (likely milky quartz)

Microcrystalline quartz, SiO₂; possibly pale agate or quartzite

Biotite Schist

Biotite-rich Schist

Mica-rich metamorphic rock, likely schist

Muscovite–biotite schist, possibly with quartz and feldspar

Schist (Biotite Schist)

Biotite-bearing Schist (K(Mg,Fe)3AlSi3O10(F,OH)2)

Pyrite-bearing rock (iron pyrite)

Pyrite, FeS₂, likely disseminated or massive in a host rock

Schist

Mica Schist

Quartzite

Metamorphosed Quartz Sandstone (SiO2)

Greenschist

Greenschist (Chlorite-Epidote-Actinolite Schist)

Weathered greenish-brown rock, likely serpentinized ultramafic rock

Serpentinite; chiefly serpentine-group minerals (Mg₃Si₂O₅(OH)₄), possibly with olivine, pyroxene, magnetite, or carbonate

Mica-rich schist (likely mica schist)

Mica schist, composed chiefly of muscovite and/or biotite mica with quartz; exact minerals require testing

Mica-rich schist (probable)

Mica schist, likely muscovite–biotite schist; exact identification requires examination or testing

Emerald

Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities

Jasper with Epidote Vein

Silicon Dioxide (SiO2) with Calcium Aluminum Iron Silicate (Ca2(Al,Fe)3(SiO4)3(OH))

Conglomeratic sandstone / breccia-like gravel rock

Polymictic conglomerate (possibly lithified gravel or concrete-like natural conglomerate)

Mica Schist with Quartz

Crystalline Schist (SiO2 + KAl2(AlSi3O10)(OH)2)

Mica Schist (with Muscovite mica)

Mica Schist (KAl2(AlSi3O10)(OH)2)

Likely biotite mica schist

Mica schist, chiefly biotite (K(Mg,Fe)₃AlSi₃O₁₀(F,OH)₂) with quartz and feldspar

Green Gneiss or Greenschist

Chlorite/Actinolite Gneiss or Schist

Flaked stone projectile point

Likely worked chert or fine-grained silicified shale; exact lithology cannot be confirmed from the image

Epidote

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

Quartz-veined metamorphic rock, likely mica schist

Mica schist with a milky-quartz vein; predominantly quartz, feldspar, and biotite/muscovite mica

Garnet Schist

Almandine Garnet in Mica Schist

Mica Schist

Mica Schist

Biotite-bearing gneiss (probable)

Foliated metamorphic rock composed chiefly of quartz, feldspar, and dark biotite/amphibole

Gneiss (with Mica and Quartz)

Gneissic Metamorphic Rock

Mica Schist

Mica Schist (KAl2(AlSi3O10)(OH)2 / K(Mg,Fe)3AlSi3O10(OH)2)

Mica Schist

Mica Schist (KAl2(AlSi3O10)(OH)2)

Epidote

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

Likely biotite-rich schist

Mica schist, chiefly quartz–biotite ± feldspar; exact identification requires testing

Unidentified Rock

Unknown

Ferruginous Quartz

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions

Blue Kyanite

Kyanite (Al2SiO5)

Likely tumbled quartz or chalcedony fragment

Quartz (SiO₂), possibly microcrystalline chalcedony

Graphite Schist

C (Carbonaceous Schist)

Rounded quartz-rich river pebbles

Alluvial gravel; commonly quartzite, chert, and quartz-bearing sandstone fragments