Mineral Simulant (Synthetic Glass)

Green faceted gemstone, likely tsavorite garnet

Tsavorite: green grossular garnet, Ca₃Al₂(SiO₄)₃

Tumbled green beryl or glassy green gemstone

Likely beryl, Be₃Al₂Si₆O₁₈; possibly treated emerald or synthetic glass

Howlite

Howlite (Calcium borosilicate hydroxide, Ca2B5SiO9(OH)5)

Blue Goldstone

Aventurine Glass

Blue faceted gemstone, likely synthetic sapphire or blue glass

Corundum (Al₂O₃) if sapphire; identity cannot be confirmed visually

Faceted black gemstone, likely black spinel

Spinel (MgAl₂O₄); identification from the image is uncertain

Emerald (cut gemstone)

Beryl, Be₃Al₂(SiO₃)₆; green color typically from chromium and/or vanadium

Faceted clear quartz (rock crystal), likely a cut imitation or low-grade gemstone

Quartz, silicon dioxide (SiO₂)

Faceted blue gemstone, likely aquamarine

Aquamarine—blue beryl, Be₃Al₂Si₆O₁₈; identification is uncertain from the image alone

Opalite

Man-made Glass (SiO2 + additives)

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

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

Goldstone (Red/Brown)

Aventurine Glass (SiO2 with Copper inclusions)

Faceted purple gemstone, likely amethyst

Amethyst, purple variety of quartz (SiO₂)

Red faceted gemstone jewelry setting

Likely synthetic ruby or red spinel centerpiece with colorless accent stones; exact identification requires gemological testing

Diamond (appearing in jewelry)

Diamond (pure Carbon, C)

Sapphire

Corundum (Al2O3)

Aura Quartz

Silicon Dioxide (SiO2) with Titanium/Metal vapor coating

Moissanite

Silicon Carbide (SiC)

Faceted clear gemstone, likely quartz or glass imitation

Most likely quartz (SiO₂); exact identification requires refractive-index and hardness tests

Black spinel bead bracelet

Spinel (magnesium aluminate), MgAl₂O₄

Smoky Quartz

Silicon Dioxide (SiO2)

Pink Sapphire

Corundum (Al2O3 with trace Chromium and Iron)

Amethyst stud earrings

Amethyst, purple quartz (SiO₂)

Smoky Quartz

Silicon Dioxide (SiO2)

Dyed Agate Slice

Silicon Dioxide (SiO2) with artificial dyes

Emerald

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

Gold-colored gemstone ring, likely citrine or glass imitation

Indeterminate from image; possible quartz (SiO₂) or yellow glass set in gold-colored metal

Blue Sapphire

Corundum (Al2O3) with traces of Iron and Titanium

Amethyst gemstone ring

Quartz, purple variety — SiO₂

Tumbled amethyst

Amethyst, purple quartz (SiO₂), colored by trace iron and irradiation

Red synthetic corundum (ruby-colored lab-grown sapphire)

Corundum, aluminum oxide (Al₂O₃), likely synthetic and chromium-colored

Synthetic Ruby (Jewel Bearings)

Synthetic Corundum (Al2O3 doped with Chromium)

Blue Cracked Quartz (Dyed Fire Crackle Quartz)

Silicon Dioxide (SiO2) with synthetic dye

Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Green beryl gemstone (likely emerald or green beryl)

Beryl, Be₃Al₂Si₆O₁₈; green color from chromium/vanadium or iron

Amber (Simulated/Faturan Style)

Resin mix (Likely Phenolic/Celluloid if synthetic, Succinite if natural)

Green cabochon gemstone, likely aventurine or dyed chalcedony

Indeterminate from image; possible quartz variety (SiO₂), including aventurine quartz or chalcedony

Diamond (in jewelry)

Carbon (C)

Red gemstone ring, likely synthetic ruby

Corundum (Al₂O₃), chromium-bearing; possibly lab-created ruby or red glass imitation

Rough Corundum (likely Sapphire or Common Corundum)

Aluminum oxide (Al2O3)

Diamond (or Cubic Zirconia)

Carbon (C) or Zirconium Dioxide (ZrO2)

Black faceted gemstone, likely spinel or black tourmaline

Most plausibly black spinel (MgAl₂O₄); visually similar possibilities include schorl tourmaline (NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄) or synthetic glass