Gemstone

Pink tourmaline crystal (likely polished or rough-cut)

Elbaite, Na(Li₁.₅Al₁.₅)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃

Aquamarine in Matrix

Beryl (Be3Al2Si6O18)

Aquamarine

Beryl (Be3Al2(SiO3)6)

Citrine

Silicon Dioxide (Quartz variety, SiO2)

Aquamarine

Beryl (Be3Al2(SiO3)6)

Citrine

Silicon Dioxide (SiO2)

Carnelian

SiO2 (Silicon Dioxide with Iron Oxide impurities)

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Montana Agate

Silicon Dioxide (Chalcedony), SiO2

Larimar

Pectolite (Sodium Calcium Silicate Hydroxide, NaCa2Si3O8(OH))

Sunstone

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

Amazonite

Microcline feldspar (KAlSi3O8)

Blue Chalcedony

Silicon Dioxide (SiO2)

Quartz Vein in Host Rock

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Almandine Garnet

Almandine, Fe3Al2(SiO4)3

Chalcedony

Silicon Dioxide (SiO2)

Quartz Crystal

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Jasper

Microcrystalline Quartz (SiO2)

Sodalite

Na8Al6Si6O24Cl2

Quartz

Silicon Dioxide (SiO2)

Common Opal

SiO2·nH2O

Quartz

Silicon Dioxide (SiO2)

Rose Quartz

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Sodalite

Na8Al6Si6O24Cl2

Yellow Quartz (Citrine alternative)

Silicon Dioxide (SiO2) with iron impurities

Amethyst

Silicon Dioxide (SiO2) containing iron impurities and irradiation

Unidentified dark, flat specimen

Indeterminate; image resolution is insufficient for mineral identification

Emerald in Host Rock

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Quartz Pebble

Silicon Dioxide (SiO2)

Yellow Quartz

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Kyanite

Al2SiO5

Bloodstone

Chalcedony (Variety: Bloodstone / Heliotrope), SiO2

Amazonite

Microcline feldspar (KAlSi3O8)

Chalcedony

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)