Sedimentary (Imitation)

Lapis lazuli and green-blue chalcedony jewelry

Lapis lazuli: lazurite-bearing metamorphic rock, chiefly lazurite (Na₃Ca(Al₃Si₃O₁₂)S) with calcite and pyrite; second stone: likely chrysoprase or green-blue chalcedony (microcrystalline quartz, SiO₂)

Blue Aventurine

Quartzite with Dumortierite inclusions (SiO2 + Al7(BO3)(SiO4)3O3)

Opalite glass sphere (likely synthetic imitation)

Man-made opalescent glass; not natural opal

Turquoise (likely stabilized or Howlite/Magnesite imitation)

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

Blue Sapphire (likely costume glass imitation)

Corundum (Al2O3) with iron/titanium impurities

Emerald (cut gemstone)

Beryl, Be₃Al₂Si₆O₁₈, colored green mainly by chromium and/or vanadium

Polished honey-colored chalcedony cabochon ring

Microcrystalline quartz (SiO₂), likely yellow/orange chalcedony or agate

Likely amethyst cabochon ring

Quartz, SiO₂; purple coloration from trace iron and irradiation

Dyed and polished agate beads

Chalcedony (microcrystalline quartz), SiO₂; commonly agate

Tumbled banded tiger’s-eye

Quartz (SiO₂) with fibrous iron oxides, chiefly goethite and/or hematite

Baltic amber beads

Amber (fossilized plant resin), commonly succinite; organic polymer dominated by resin acids

Tumbled green aventurine (probable)

Quartzite dominated by quartz (SiO₂), commonly containing fuchsite mica

Tumbled turquoise (probable)

Turquoise, hydrated copper aluminum phosphate — CuAl₆(PO₄)₄(OH)₈·4H₂O

Polished Tiger’s Eye

Tiger’s eye quartz; SiO₂ with parallel crocidolite-derived inclusions

Decorative gemstone-chip jewelry (likely turquoise, coral, and assorted beads)

Predominantly turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; other pieces appear to be dyed coral or red stone, and possibly shell/metal components

Carved lavender chalcedony (likely agate) animal figurine

Microcrystalline quartz, SiO₂; probable chalcedony or pale lavender agate

Tumbled rose quartz

Quartz, silicon dioxide (SiO₂), pink variety

Polished banded agate

Agate, microcrystalline quartz (SiO₂), commonly chalcedony with iron-oxide impurities

Polished orbicular jasper / brecciated jasper bead bracelet

Jasper, microcrystalline quartz (SiO₂), with variable iron oxides and other silicate inclusions

Turquoise

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

Pearls

Aragonite (calcium carbonate) and Conchiolin

Tumbled orange chalcedony (likely carnelian)

Chalcedony, microcrystalline quartz (SiO₂), orange variety commonly called carnelian

Amber

Fossilized tree resin (mainly polymerized diterpenoid resin)

Tumbled amber-like inclusion

Likely amber (fossilized tree resin; complex polymer), but identification is uncertain from the image

Amber (likely rough amber)

Fossilized plant resin; predominantly polymerized terpenoid resin (succinite if Baltic-type)

Blue chalcedony cabochon (probable)

Chalcedony, cryptocrystalline quartz; silicon dioxide (SiO₂)

Clear faceted gemstone in an ornate metal bracelet

Unidentified transparent faceted stone; possibilities include quartz (SiO₂), zircon (ZrSiO₄), or glass—image alone cannot distinguish them

Red faceted gemstone, possibly synthetic ruby or red glass

Unidentified red gem; ruby is corundum (Al₂O₃), while glass is amorphous silicate

Faceted golden beryl (likely heliodor)

Beryl, Be₃Al₂Si₆O₁₈; yellow color from iron impurities

Ornamental ring with likely blue sapphire and diamonds

Blue corundum (sapphire), Al₂O₃; surrounding stones appear diamond, C, set in gold-colored metal

Polished tiger’s-eye

Quartz variety, SiO₂, with crocidolite-derived iron inclusions

Polished plume agate

Microcrystalline quartz (SiO₂), variety of chalcedony

Tumbled turquoise (likely dyed or stabilized)

Turquoise — hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O

Tumbled blue-green chalcedony (likely dyed agate or chrysocolla-bearing chalcedony)

Microcrystalline quartz, SiO₂; blue coloration may reflect chrysocolla, copper minerals, or dye

Polished turquoise cabochon

Turquoise, hydrated copper–aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O

Turquoise ring

Turquoise, hydrated copper–aluminum phosphate (CuAl₆(PO₄)₄(OH)₈·4H₂O)

Polished amber

Amber (fossilized plant resin; primarily organic polymerized terpenes)

Carnelian

Orange-red chalcedony (microcrystalline quartz, SiO₂)

Dyed and polished turquoise

Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O

Malachite

Malachite - Cu2CO3(OH)2

Sunstone

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

Rose Quartz

Silicon Dioxide with trace inclusions (SiO2)