Sedimentary Or Metamorphic

Unakite

Unakite (Altered Granite consisting of Orthoclase KAlSi3O8, Epidote Ca2(Al,Fe)3(SiO4)3(OH), and Quartz SiO2)

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

Yellow Aventurine

Quartz (SiO2) with iron-bearing inclusions

Magnetite (likely in Hematite or Ironstone)

Magnetite (Fe3O4)

Gold Nugget

Native Gold (Au)

Green Aventurine (Propably a tumbled variety)

Aventurine Quartz (SiO2 with inclusions of Fuchsite)

Moonstone (Blue Flash)

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

Smoky Quartz

Silicon Dioxide (SiO2)

Greenstone / Serpentinite

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

Smoky Quartz

Smoky Quartz (Silicon Dioxide - SiO2)

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Milky Quartz Pebble

Silicon Dioxide (SiO2)

Rainbow Moonstone

White Labradorite (formula: (Na,Ca)(Al,Si)4O8)

Amethyst (Rose de France varieties or Amethystine Quartz)

Silicon Dioxide (SiO2) with iron impurities

Agate

Chalcedony (SiO2)

Serpentinite

Serpentinite (composed primarily of serpentine group minerals like lizardite, antigorite, and chrysotile)

Moonstone

Orthoclase (Potassium Aluminum Silicate, KAlSi3O8)

Amethyst and Ruby in Zoisite

Silicon Dioxide (SiO2) and Anyolite (Zoisite-Hornblende-Ruby mix)

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Chrysoberyl (Cyclic Twin)

Beryllium Aluminum Oxide (BeAl2O4)

Aquamarine

Beryl (Be3Al2Si6O18)

Rainbow Moonstone with Black Tourmaline

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

Quartz (Raw Rose and Milky varieties)

Silicon Dioxide (SiO2)

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

Smoky Quartz

Silicon Dioxide (SiO2)

Agate

Agate (Silicon Dioxide, SiO2)

Chalcopyrite

Copper Iron Sulfide (CuFeS2)

Quartz with inclusions (likely Tourmaline or Biotite)

Silicon Dioxide (SiO2)

Rough Citrine Quartz

Silicon Dioxide (SiO2) with ferric iron impurities

Flesh-toned Siltstone

Siltstone (composed of microscopic Quartz and Feldspar grains)

Lapis Lazuli

Lapis lazuli (a metamorphic rock primarily composed of Lazurite, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Lapis Lazuli

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

Nuummite

Nuummite (Ortho-amphibole rock, primarily Anthophyllite and Gedrite)

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals: (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4)

Jadeite Jade

NaAlSi2O6 (Sodium Aluminum Silicate)

Milky Quartz Pebbles

Silicon Dioxide (SiO2)

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Rough Green Sapphire (Corundum)

Corundum (Al2O3 - Aluminum Oxide with trace elements)

Citrine Quartz

Silicon Dioxide (SiO2)

Labradorite (Carved)

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