Mineral And Metamorphic Rock

Schist

Mica Schist (Quartz-Muscovite-Biotite Schist)

Epidosite

Epidosite (Metasomatic rock consisting mainly of Epidote and Quartz)

Epidosite (Epidote-rich rock)

Epidosite (consisting primarily of Epidote: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH))

Gneiss

Gneiss (a rock type, not a specific mineral with a formula)

Quartz (Milky or Clear variety)

Silicon Dioxide (SiO2)

Tiger's Eye

SiO2 (Silicon Dioxide with inclusions of Goethite/Limonite)

Schist

Mica Schist

Amethyst (Chevron or Banded Amethyst)

Silicon Dioxide (SiO2) with iron impurities

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Phyllite

Phyllite (Foliated metamorphic rock)

Smoky Quartz (with possible Feldspar inclusions)

Silicon Dioxide (SiO2)

Quartz (Milky or Clear Quartz fragment)

Silicon Dioxide (SiO2)

Gneiss

Gneiss (High-grade metamorphic rock typically composed of Quartz, Feldspar, and Mica/Amphibole)

Banded Gneiss (River Rock/Pebble)

Gneiss (specifically a banded variety, likely a orthogneiss or paragneiss depending on parent rock)

Quartz (likely) / Siliceous rock with quartz phenocrysts (if a rock fragment)

Quartz (SiO₂)

Almandine Garnet

Iron aluminum silicate (Fe3Al2(SiO4)3)

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Slate

Foliated Metamorphic Rock (primarily composed of Muscovite, Chlorite, and Quartz)

Charoite

Charoite (Hydrated potassium sodium calcium barium strontium silicate hydroxyfluoride)

Clear Quartz

Silicon Dioxide (SiO2)

Quartzite

Quartzite (primarily SiO2)

Greenstone

Metabasalt / Chlorite-Epidote Schist

Wishing Stone with Quartz Vein

Hydrothermal Quartz Vein in Metasedimentary Matrix (primarily SiO2)

Green Quartzite (Aventurine-like)

Quartzite (primarily SiO2 with chromium-rich mica or chlorite inclusions)

Quartz Crystal Cluster

Silicon Dioxide (SiO2)

Quartzite / Sandstone / Chert Mix

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2) / Rock Crystal

Smoky Quartz

Silicon Dioxide (SiO2)

Garnet-Bearing Gneiss

Almandine-Garnet Gneiss

Lapis Lazuli (Lazurite crystals on Marble)

Lazurite / (Na,Ca)8[(S,Cl,SO4,OH)2|(AlSiO4)6]

Pink Quartzite

Quartzite (SiO2 with minor iron oxide impurities)

White Jade (Nephrite)

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

Lapis Lazuli

Lazurite (primary mineral component), (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2

Quartzite (Milky Quartz pebble)

Silicon Dioxide (SiO2)

Granitic Gneiss

Gneiss (Polymetamorphic Granitic Gneiss)

Serpentine

Serpentinite (group of minerals including Antigorite, Lizardite, or Chrysotile) (Mg, Fe)3Si2O5(OH)4

Quartz

Silicon Dioxide (SiO2)

Smoky Quartz (Vein Quartz)

Quartz (Silicon Dioxide, SiO2)

Shale

Shale (comprised mostly of clay minerals and quartz)

Blue Quartzite

Quartzite (primarily SiO2 with inclusions)

Unakite

Unakitized granodiorite / Quartz-Epidote-Feldspar rock

Red Quartzite (River Pebble)

Quartzite (primarily Silicon Dioxide - SiO2)