Metamorphic

Milky Quartz

Silicon Dioxide (SiO2)

Corundum (Sapphire in Host Rock)

Corundum (Aluminum Oxide, Al2O3)

Mica Schist

Schist (Muscovite/Biotite Schist)

Blue Quartzite (River Pebble)

Quartzite (primarily SiO2 with Dumortierite or Crocidolite inclusions)

Unakite

Epidotized Granite

Kyanite

Kyanite (Al2SiO5)

Quartzite

Quartzite (primarily SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartzite

Quartzite (primarily SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Pink Garnet (likely Almandine or Rhodolite)

Garnet Group (Fe3Al2(SiO4)3 to Mg3Al2(SiO4)3)

Quartzite

Quartzite (primarily SiO2)

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Quartzite

Quartzite (SiO2)

Red Jade (Dyed Quartzite)

Silicon Dioxide (SiO2) - variety Quartzite

Green Aventurine (Tumbled Quartzite)

Silicon Dioxide (SiO2) with inclusions of Fuchsite

Quartzite with Iron Inclusions

Quartzite (primarily SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartzite

Quartzite (primarily SiO2)

Fuchsite (Green Muscovite in Quartz)

Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Milky Quartz

Quartz / Silicon Dioxide (SiO2)

Quartzite

Quartzite (primarily SiO2)

Adventurine (Green)

Silicon Dioxide (SiO2) with inclusions of Fuchsite

Quartzite

Quartzite (primarily SiO2)

Quartzite River Stone

Quartzite (primarily SiO2)

Garnet Schist

Almandine Garnet in Mica Schist (Fe3Al2(SiO4)3)

Biotite Schist with Garnet

Garnet-Biotite Schist

Quartzite (River Cobble)

Quartzite (primarily SiO2)

Schist with Biotite Inclusion

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

Milky Quartz

Silicon Dioxide (SiO2)

Mica Schist (with Golden/Biotite inclusions)

K(Mg,Fe)3AlSi3O10(F,OH)2 (Biotite), KAl2(AlSi3O10)(F,OH)2 (Muscovite)

Garnet

Garnet Group (Silicate mineral); general formula X3Y2(SiO4)3

River Quartzite Siltstone

Quartz-rich Meta-siltstone (SiO2 dominated)

Green Schist

Greenschist (composed of Chlorite, Actinolite, and Epidote)

Greenstone (Epidote/Chlorite Rich Rock)

Metabasalt (often contains Epidote Ca2Al2(Fe3+;Al)(SiO4)(Si2O7)O(OH))

Marble (White)

Recrystallized Calcite (CaCO3) or Dolomite (CaMg(CO3)2)

Greenschist

Greenschist facies rock (containing chlorite, actinolite, and epidote)

Citrine (Yellow Quartz)

Silicon Dioxide (SiO2)

Quartz (likely milky/rose quartz variety)

Quartz (SiO2 - Silicon Dioxide)