Mineral In Metamorphic Rock

Quartz (Milky/Crystal Variety)

Silicon Dioxide (SiO2)

Lapis Lazuli

Lapis Lazuli (A complex rock primarily composed of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Lapis Lazuli

Lapis Lazuli (Mineral composition: Lazurite (Na,Ca)8(AlSiO4)6(SO4,S,Cl,OH)2, Calcite, and Pyrite)

Rough Emerald in Matrix

Beryl (Be3Al2Si6O18) with trace Chromium/Vanadium

Blue Kyanite

Kyanite (Al2SiO5)

Hypersthene (or Enstatite/Ferrosilite)

Orthopyroxene series (Mg,Fe)SiO3 - specifically, historically hypersthene (intermediate member) now referred to as Enstatite (Mg-rich) or Ferrosilite (Fe-rich)

Blue Kyanite

Kyanite (Al2SiO5)

Lapis Lazuli

Lazurite-rich metamorphic rock ((Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Lapis Lazuli

Lapis Lazuli (Complex aggregate mainly of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartzite River Pebble

Quartzite (primarily Silicon Dioxide, SiO2)

Biotite Schist

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

Moonstone (Feldspar)

Orthoclase feldspar, (K,Na)AlSi3O8

Smoky Quartz

Silicon Dioxide (SiO2)

Marble

Recrystallized Carbonate Rock (CaCO3)

Quartz / Quartzite

Silicon Dioxide (SiO2)

Marble

Recrystallized Calcite Rock (CaCO3)

Greenschist with Quartz Veining

Greenschist (commonly containing Chlorite, Actinolite, and Epidote)

Gneiss

Gneiss (High-grade regional metamorphic rock)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Granite Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Mica Schist

Mica Schist (predominantly Muscovite or Biotite sheet silicates)

Orthoclase Feldspar

Potassium Aluminum Silicate (KAlSi3O8)

Granite Gneiss

Gneiss (derived from granitic protolith)

Schist

Mica Schist (primarily composed of quartz, feldspar, and mica)

Yellow Agate

Silicon Dioxide (SiO2)

Smoky Quartz Cluster

Smoky Quartz (Silicon Dioxide - SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Quartz (Iron-Stained or Milky Quartz)

Silicon Dioxide (SiO2)

Smoky Quartz (with possible Garnet inclusions)

Silicon Dioxide (SiO2)

Quartz (Milky/Smoky variety on matrix)

Silicon Dioxide (SiO2)

Massive Quartz with Host Rock

Silicon Dioxide (SiO2)

Quartzite

Quartzite (primarily SiO2)

Gneiss

Gneiss (High-grade Metamorphic Rock)

Schist

Crystalline Schist (often containing Muscovite, Biotte, or Quartz)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Gneiss

Gneiss (High-grade metamorphic rock)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Gneiss

Gneiss (High-grade regional metamorphic rock)

Granite Gneiss

Gneiss (High-grade metamorphic rock)

Epidote

Epidote - Ca2(Al2,Fe3+)3(SiO4)3(OH)