Mineral In Metamorphic Rock

Labradorite (a variety of Feldspar)

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

Muscovite Mica

Muscovite (Potassium Aluminum Silicate Hydroxide Fluoride), KAl2(AlSi3O10)(OH,F)2

Serpentinite

Serpentinite (composed primarily of minerals in the Serpentine group)

Magnetite Orthorthotropic Rock

Magnetite (Fe3O4)

Gneiss

Gneiss (High-grade regional metamorphic rock)

Quartzite (Yellow/Orange variety)

Quartzite (primarily SiO2)

Banded Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Mica Schist

Mica Schist (predominantly Muscovite or Biotite sheet silicates)

Lapis Lazuli (Raw Ore)

Na8[Al6Si6O24]n(S,Cl,SO4,OH)2 (Lazurite component)

Orthoclase Feldspar

KAlSi3O8 (Potassium Aluminum Silicate)

Serpentinite (often containing Jadeite/Nephrite)

Antigorite-rich Serpentine Rock, (Mg, Fe)3Si2O5(OH)4

Lapis Lazuli

Lapis Lazuli (Primary mineral: Lazurite (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2)

Clear Quartz

Silicon Dioxide (SiO2)

Gneiss

Gneiss (High-grade Metamorphic Rock)

Unidentified Rock Fragment

Unknown

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Boxwork Quartz / Septarian Jasper

Boxwork (SiO2 with iron oxide inclusions)

Serpentinite

Serpentinite (a rock composed predominantly of serpentine group minerals)

Pyrite in Quartz

Iron Sulfide (FeS2) in Silicon Dioxide (SiO2)

Gneiss

Gneiss (High-grade metamorphic rock)

Rough Ruby

Corundum (Al2O3 with Chromium impurities)

Almandine Garnet

Iron aluminum silicate (Fe3Al2(SiO4)3)

Smoky Quartz

Silicon Dioxide (SiO2)

Quartz Vein in Host Rock (Likely Slate or Shale)

Hydrothermal Quartz (SiO2) in Pelitic host rock

Lapis Lazuli

Sodium aluminum silicate with sulfur (main component: Lazurite [(Na,Ca)8(AlSiO4)6(SO4,S,Cl)2])

Biotite (Mica)

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

Garnet (Pyrope-Almandine series)

Garnet Group, (Mg,Fe)3Al2Si3O12

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Red Garnet

Almandine and Pyrope (Silicate minerals: Fe3Al2(SiO4)3 and Mg3Al2(SiO4)3)

Banded Gneiss (River Cobble)

Gneiss (a high-grade metamorphic rock)

Veined Pebble (likely a Quartz-Veined Pebble)

Pebble with Mineral Vein (e.g., Quartz Vein in a Chert/Mudstone Pebble)

Almandine Garnet

Almandine (Fe3Al2Si3O12)

Red Aventurine

Aventurine Quartz (SiO2 + Hematite/Goethite)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Foliated Gneiss (River-Worn Pebble)

Gneiss (High-grade Regional Metamorphic Rock)

Quartz (Milky or White Quartz)

Silicon Dioxide (SiO2)

Tiger's Eye (Inlaid in a band)

SiO2 (Silicon Dioxide with Crocidolite inclusions)

Dyed Agate

Silicon Dioxide (SiO2) - variety Chalcedony

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Milky Quartz

Silicon Dioxide (SiO2)

Dragon Blood Jasper

Epidote with Pietersite or Red Jasper (Ca2Al2Fe3+[Si2O7][SiO4]O(OH))

Milky Quartz (Vein Quartz)

Silicon Dioxide (SiO2)