Gemstone

Jadeite

NaAlSi2O6 (Sodium Aluminum Silicate)

Petoskey Stone (Fossilized Coral)

Hexagonaria percarinata (CaCO3)

Jasper (Mookaite style)

Silicon Dioxide (SiO2) with iron and manganese inclusions

Aquamarine

Beryl (Be3Al2Si6O18)

Amazonite

Potassium Aluminum Silicate (KAlSi3O8)

Sunstone

Oligoclase or Andesine (Feldspar Group), (Ca,Na)((Al,Si)4O8)

Chalcedony (Yellow/Honey variety)

Microcrystalline Quartz (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Tiger's Eye

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz (Druzy/Crystal Cluster)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Ocean Jasper (Orbicular Jasper)

Spherulitic Chalcedony (SiO2)

Smoky Quartz

Silicon Dioxide (SiO₂)

Alexandrite

Chrysoberyl (BeAl2O4)

Orthoclase Feldspar

KAlSi3O8 (Potassium Aluminum Silicate)

Quartz (Crystal Fragment)

Quartz / Silicon Dioxide (SiO2)

Yellow Aventurine

Quartzite with inclusions (SiO2)

Quartz (Milky/Crystalline variety)

Silicon Dioxide (SiO2)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

White Jade / Jadeite

NaAlSi2O6 (Sodium Aluminum Silicate)

Milky Quartz

Silicon Dioxide (SiO2)

Amethyst

Amethyst (SiO2 with iron impurities)

Yellow Aventurine

Quartzite with Muscovite/Sericite inclusions (SiO2 + KAl2(AlSi3O10)(OH)2)

Citrine

Yellow Quartz (SiO2)

Carnelian (Red Agate)

Chalcedony (SiO2 with Iron Oxide impurities)

Malachite

Malachite (Cu2CO3(OH)2)

Anyolite (Ruby in Zoisite)

Zoisite with inclusions of Corundum; Ca2Al3(SiO4)3(OH) + Al2O3

Dalmatian Stone (Dalmatian Jasper)

Dalmatian Stone (A variety of Perthite / Aplite)

Green Chalcedony (likely Green Agate or Chrysoprase)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Aquamarine

Beryl (Be3Al2Si6O18 with Fe2+ impurities)

Milky Quartz

Silicon Dioxide (SiO2)

Unakite

Epidotized Granite

Carnelian Agate

Silicon Dioxide (SiO2)

Carnelian

Chalcedony (SiO2) with Iron Oxide impurities

Quartz (Milky/Clear Quartz)

Silicon Dioxide (SiO2)

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with Iron Oxide inclusions)

Amethyst (Faceted)

Silicon Dioxide (SiO2) with iron impurities

Prasiolite (Green Quartz)

Silicon Dioxide (SiO2) with iron impurities

Blue Chalcedony

Chalcedony (SiO2)

Jasper

Cryptocrystalline Quartz (SiO2)