Metamorphic

Garnet (Almandine)

Almandine, Fe3Al2Si3O12

Fuchsite

Chrome-bearing Muscovite [K(Al,Cr)2(AlSi3O10)(OH)2]

Garnetiferous Pegmatite

Pegmatite with Almandine Garnet and Muscovite

Mica Schist with Garnet inclusions

Mica Schist (primarily Muscovite and Biotite - KAl2(AlSi3O10)(OH)2)

Greenschist (Greenstone)

Chlorite Schist / Greenschist Facies Rock

Garnet (Almandine variety)

Almandine Garnet (Fe3Al2(SiO4)3)

Garnet in Matrix (likely Almandine in Quartz/Mica Schist)

Almandine Garnet (Fe3Al2(SiO4)3) in Quartz-Feldspar host rock

Biotite (Black Mica)

K(Mg,Fe)3AlSi3O10(OH,F)2

Zebra Rock / Zebra Marble

Banded Limestone-Marble Transition

Riverstone (Quartzite or Siltstone cobble)

Quartzite (primarily SiO2)

Serpentine

Antigorite, Lizardite, or Chrysotile (Mg, Fe)3Si2O5(OH)4

Pyrite in Matrix (Fool's Gold)

Iron Sulfide (FeS2)

Schist (Micaceous)

Mica Schist (predominantly Muscovite or Biotite)

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)

Quartzite Pebble

Quartzite (primarily SiO2)

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Mica Schist

Mica Schist (primarily Muscovite and Quartz)

Garnet

Almandine (Fe3Al2(SiO4)3)

Quartzite

Quartzite (mainly Silicon Dioxide, SiO2)

Milky Quartz

Quartz / Silicon Dioxide (SiO2)

Quartzite

Quartzite (primarily SiO2)

Milky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Mica Schist

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

Epidote in Matrix

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

Staurolite (Fairy Cross)

Staurolite (Fe2+2Al9Si4O23(OH))

Hypersthene

Hypersthene ((Mg,Fe)SiO₃)

Gneiss (Metamorphic Cobble)

Gneiss

Gneiss (Metamorphic Rock)

Gneiss

Gneiss (Metamorphic Rock)

Gneiss

Gneiss (Metamorphic Rock)

Gneiss (high-grade regional metamorphic rock)

Gneiss (Metamorphic Rock)

Gneiss (variable mineral formula primarily containing Quartz, Feldspar, and Mica)

Quartzite (with Metamorphic Foliation)

Quartzite (Recrystallized SiO2)

Gneiss (Metamorphic Cobble)

Gneiss (High-grade Regional Metamorphic Rock)

Sodalite

Sodalite (Na4Al3Si3O12Cl)

Labradorite (a variety of Feldspar)

Labradorite; (Na,Ca)(Al,Si)4O8 (a plagioclase feldspar)

Biotite Schist

Biotite Schist

Ruby in Kyanite

Corundum in Disthene (Al2SiO5 + Al2O3)

Rhodonite

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

Rhodonite

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

Biotite / Black Mica

K(Mg,Fe)3(AlSi3O10)(F,OH)2

Yellow Jade (Nephrite)

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)

Unakite

Epidotized Granite (composition: K-feldspar, Epidote, and Quartz)