Mineral, Jewelry

Amethyst

Amethyst (SiO2 with Iron impurities)

Sunstone

Heliolite (Sodium Calcium Aluminum Silicate with Iron or Copper inclusions)

Amazonite in Matrix

Potassium Feldspar (Microcline), KAlSi3O8

Turquoise

Hydrated phosphate of copper and aluminum (CuAl6(PO4)4(OH)8·4H2O)

Amazonite

Amazonite (KAlSi3O8, a variety of Microcline)

Citrine Quartz

Citrine (Silicon Dioxide, SiO2)

Precious Opal

Hydrated Silica (SiO2·nH2O)

Rhodochrosite with Pyrite and Quartz

Manganese Carbonate (MnCO3)

Labradorite

Labradorite (Plagioclase Feldspar Series: (Ca,Na)(Al,Si)4O8)

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Astrophyllite

Potassium Sodium Iron Manganese Titanium Silicate Hydroxide (K3NaFe7Ti2Si8O24(OH)7)

Emerald in Host Rock

Beryl (Be3Al2Si6O18) containing Chromium and/or Vanadium

Citrine

Citrine (Silicon Dioxide - SiO2)

Sunstone

Plagioclase feldspar (with Copper or Hematite inclusions)

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Beryl (var. Heliodor or Aquamarine)

Beryllium Aluminum Cyclosilicate (Be3Al2Si6O18)

Garnet

Almandine (Fe3Al2(SiO4)3)

Rough Emerald

Beryl (Be3Al2(SiO3)6 with Chromium/Vanadium impurities)

Amethyst

Amethyst (Silicon Dioxide, SiO2)

Gold Ore in Quartz

Auriferous Quartz (SiO2 with Au inclusions)

Aquamarine

Beryl (Be3Al2Si6O18 with iron impurities)

Strawberry Quartz

Silicon Dioxide (SiO2) with Hematite/Goethite inclusions

Amethyst

Amethyst (Silicon Dioxide, SiO2 with Iron impurities)

Gold Nugget

Native Gold (Au)

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Rose Quartz Sphere

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

Amazonite

Potassium Feldspar (Microcline), K(AlSi3O8)

Rose Quartz

Crystalline Silicon Dioxide with trace Titanium, Iron, or Manganese (SiO2)

Aura Quartz (Pink/Rose Aura Quartz)

Silicon Dioxide (SiO2) bonded with Platinum and/or Silver

Milky Quartz

Silicon Dioxide (SiO2)

Rough Green Fluorite

Fluorite (Calcium Fluoride - CaF2)

Chrysocolla and Azurite on Matrix

Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4 (Chrysocolla) and Copper carbonate hydroxide Cu3(CO3)2(OH)2 (Azurite)

Sunstone

Oligoclase or Andesine (Plagioclase Feldspar) - (Ca, Na)((Al, Si)2Si2O8)

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Beryl (Emerald Variety)

Beryllium aluminum silicate (Be3Al2(SiO3)6) with chromium/vanadium traces

Ethiopian Opal (Welo Opal in Matrix)

Hydrated Silica (SiO2·nH2O)

Botryoidal Chalcedony (likely Desert Rose/Agatized Geode Crust)

Silicon Dioxide (SiO2)

Carnelian

Carnelian (a variety of Chalcedony, SiO2)

Amethyst

SiO2 (Silicon Dioxide with iron impurities)

Pink Tourmaline in Quartz Matrix

Elbaite (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4) with Quartz (SiO2)

Gold-bearing Quartz

Auriferous Quartz (SiO2 with Native Gold inclusion)

Clear Quartz (Rock Crystal)

Quartz (Silicon Dioxide, SiO2)