Sedimentary Or Metamorphic Derived

Moonstone

Orthoclase/Albite (KAlSi3O8 / NaAlSi3O8) with Adularescence

Banded Agate

Cryptocrystalline Quartz (SiO2)

Amethyst (Quartz variety)

Amethyst [Silicon Dioxide (SiO2)]

Quartz (Milky or Smoky Quartz)

Quartz (Silicon Dioxide, SiO2)

Mica (Muscovite)

Potassium aluminum silicate - KAl2(AlSi3O10)(OH)2

Specular Hematite (Specularite)

Iron Oxide (Fe2O3)

Granite Gneiss

Gneiss (high-grade metamorphic rock)

Verde Antique Marble (Serpentinite)

Serpentinite (composed mainly of Serpentine group minerals, Mg3Si2O5(OH)4)

Citrine Quartz (Yellow Quartz)

Silicon Dioxide (SiO2) with iron impurities

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Quartz / Vein Quartz

Quartz (Silicon Dioxide, SiO2)

Limonite-stained Quartz

Silicon Dioxide (SiO2) with Iron Oxide/Hydroxide (FeO(OH)·nH2O) staining

Amethyst (Rose de France varieties or Amethystine Quartz)

Silicon Dioxide (SiO2) with iron impurities

Rainbow Moonstone with Black Tourmaline

White Labradorite (Feldspar variety, (Na,Ca)(Al,Si)4O8) with Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)

Burmese Jadeite (Water Jade)

Jadeite (NaAlSi2O6)

Quartz (Milky/Clear variety)

Silicon Dioxide (SiO2)

Slate

Foliated Metamorphic Rock (composed primarily of silica and alumina with iron and magnesium)

Milky Quartz (Quartz Vein)

Silicon Dioxide (SiO2)

Blue Aventurine

Silicon Dioxide (SiO2) with inclusions of Dumortierite

Gold Nugget

Native Gold (Au)

Moonstone (Blue Flash)

Potassium Aluminum Silicate (KAlSi3O8), a variety of Orthoclase Feldspar

Quartz (Iron-stained)

Silicon Dioxide (SiO2) with Hematite/Limonite impurities

Raw Emerald

Beryl (Be3Al2Si6O18 with Chromium/Vanadium)

Red Garnet (likely Almandine)

Almandine (Fe3Al2(SiO4)3)

Banded Agate (Yellow Agate)

Silicon Dioxide (SiO2)

Labradorite

Labradorite (Ca,Na)(Al,Si)4O8

Gold-bearing Quartz

Lode Gold in Silicon Dioxide (SiO2)

Quartzite

Quartzite (Primary mineral: SiO2)

Serpentinite (often containing Jadeite/Nephrite)

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

Smoky Quartz

Silicon Dioxide (SiO2)

Blue Quartz (specifically Dumortierite Quartz)

SiO2 (Silicon Dioxide) with inclusions of AlAl6BSi3O18 (Dumortierite)

Serpentine

Serpentinite (composed mainly of Group Minerals Antigorite, Chrysotile, and Lizardite; Mg3Si2O5(OH)4)

Olivine (Peridot)

Magnesium Iron Silicate (Mg, Fe)2SiO4

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Smoky Quartz

Silicon Dioxide (SiO2)

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Green Aventurine

Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)

Peacock Ore (Bornite or Iridescent Chalcopyrite)

Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2) with oxidation

Tiger's Eye

Silicon Dioxide (SiO2) with Limonite/Goethite pseudomorphs after Crocidolite

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Pink Granite (Gneissic transition)

Pink Biotite Granite

Green Aventurine (Quartz)

SiO2 (Silicon Dioxide with Fuchsite inclusions)