Organic (If Resin) Or Synthetic (If Glass); Simulating Sedimentary Or Metamorphic (For Natural Stones)

Chert (often called Jasper or River Rock)

Chert (SiO2)

Goldstone

Avventurina (Man-made Glass with Copper inclusions)

White seed-bead gemstone strand, likely freshwater pearl or shell pearl

Pearl: nacreous calcium carbonate, chiefly aragonite (CaCO₃) in conchiolin; identification uncertain from image

Polished pink corundum (likely treated ruby)

Corundum, aluminum oxide (Al₂O₃); ruby when red-to-pink from chromium

Amber

Succinate (Fossilized Tree Resin)

Ornamental ring with likely blue sapphire and diamonds

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

Blue Topaz

Topaz [Al2SiO4(F,OH)2]

Staurolite (Cross Stone)

Staurolite (Fe2+2Al9Si4O23(OH))

Smoky Quartz

Silicon Dioxide (SiO2)

Ruby (set in a gold pendant)

Ruby (Variety of Corundum, Al2O3)

Polished yellow-orange chalcedony (likely carnelian or yellow agate)

Microcrystalline quartz, SiO₂; chalcedony variety

Goldstone (Red/Brown)

Aventurine Glass (SiO2 with Copper inclusions)

Dyed Agate

Silicon Dioxide with artificial pigment (SiO2)

Black spinel bead bracelet

Spinel (magnesium aluminate), MgAl₂O₄

Dyed Blue Agate

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Blue gemstone ring, likely lapis lazuli

Lapis lazuli: lazurite-rich metamorphic rock, chiefly (Na,Ca)8(AlSiO4)6(S,SO)2, commonly with calcite and pyrite

Opal (in Jewelry Setting)

Hydrated Silicon Dioxide (SiO2·nH2O)

Opalite

Synthetic Glass (Hydrated Crystalline Silicon Dioxide simulation)

Amber (in Matrix/Shale)

Amber (Fossilized Tree Resin)

Black spinel bead strand

Spinel, magnesium aluminum oxide (MgAl₂O₄)

Faceted colorless gemstone, likely quartz (rock crystal)

Quartz, SiO₂

Tumbled amber

Amber (fossilized plant resin), commonly succinite; organic mineraloid

Clear faceted gemstone in a metal jewelry setting (likely imitation glass or cubic zirconia)

Unidentified transparent faceted stone; possibly cubic zirconia (ZrO₂) or glass

Tumbled brown stone, possibly amber or polished agate

Indeterminate from image; possibilities include amber (fossilized plant resin, organic) or chalcedony/quartz (SiO₂)

Amber

Succiniferous fossil resin (C10H16O)

Small tumbled brown stone, likely iron-stained quartz or jasper

Quartz (SiO₂) or microcrystalline quartz (chalcedony/jasper), identification uncertain from the image

Polished honey-yellow quartz-like crystal

Quartz (SiO₂), possibly citrine or heat-treated amethyst

Amber (likely a small polished amber piece)

Natural fossil resin; amber is an organic mineraloid, not a crystalline mineral. The image alone cannot confirm authenticity.

Amber

Succinite (approximate formula C10H16O)

Smoky Quartz

Smoky Quartz (Silicon Dioxide - SiO2)

Epidote (Unakite component) / Green Quartzite

Ca2(Al,Fe)3(SiO4)3(OH)

Man-made Glass (Tumbled/Shaped)

Amorphous Silicon Dioxide (SiO2) with metal oxide colorants

Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Small faceted gemstone, likely diamond

Diamond (crystalline carbon, C)

Amber

Succinite (organic hydrocarbon)

Painted River Rock

Polished fluvial clast with acrylic/synthetic pigment coating

Green glassy cabochon, likely dyed or synthetic material

Uncertain; possibly green obsidian, chrysoprase, or synthetic glass

Likely amethyst cabochon ring

Quartz, SiO₂; purple coloration from trace iron and irradiation

Decorative polished pebbles

Likely mixed quartz-rich lithologies, including quartzite, jasper, and/or basalt

Quartz (Engineered Stone Countertop)

Silicon Dioxide (SiO2) within a resin matrix

Clear Quartz

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)