Synthetic (Man Made Material Mimicking Natural Stone)

Chert (Chalky Flint Node)

Chert (Microcrystalline Quartz, SiO2)

Diamond (in a gold ring)

Diamond (pure carbon, C)

Tumbled milky quartz pebble

Quartz (silicon dioxide, SiO₂), opaque-to-translucent milky variety

Man-made Jewelry (Metal and Glass/Plastic)

Synthetic Alloy and Amorphous Solid (SiO2/Polymer)

Red gemstone ring, likely synthetic ruby or red spinel

Ruby: corundum (Al₂O₃); spinel: MgAl₂O₄; exact identity requires testing

Slag Glass

Anthropogenic Amorphous Silicon Dioxide

Aura Quartz

Titanium-coated Silicon Dioxide (SiO2)

Gold ring with a dark, possibly gemstone setting

Gold alloy; the dark setting is not identifiable from the image

Goldstone (aventurine glass)

Man-made copper-bearing glass; not a natural mineral (commonly sold as blue/brown goldstone)

Tumbled gray stone, likely quartz-rich pebble

Probable microcrystalline quartz/chalcedony (SiO₂), possibly gray jasper or quartzite

Black faceted gemstone, possibly black spinel or onyx

Undetermined; candidates include spinel (MgAl₂O₄) or chalcedony (SiO₂)

Titanium Aura Quartz (Bismuth-coated Druzy)

Silicon Dioxide (SiO2) with Titanium/Metal vapor coating

Blue gemstone ring, likely blue topaz or synthetic blue spinel

Likely topaz (Al₂SiO₄(F,OH)₂) or synthetic spinel (MgAl₂O₄); identification is uncertain from the image

Cubic Zirconia

Zirconium dioxide (ZrO2)

Red cabochon gemstone ring, likely synthetic ruby or red glass

Possibly corundum (Al₂O₃, chromium-colored); identity cannot be confirmed from the image

Gemstone Ring

Various (Likely Glass, Cubic Zirconia, or assorted semi-precious stones)

Goldstone (Red)

Aventurine Glass

Clear quartz tumbled stone

Quartz (silicon dioxide, SiO₂)

Blue Goldstone

Goldstone (artificial glass)

Aqua Aura Quartz

Silicon Dioxide (SiO2) bonded with Gold (Au)

Moissanite

Silicon Carbide (SiC)

Gemstone ring (stones not identifiable from image)

Unknown; the ring appears to contain two yellow stones and one colorless stone, possibly faceted gemstones or simulants

White quartz pebble

Quartz (SiO₂), likely milky quartz

Cullet Glass (Slag)

Amorphous Silicon Dioxide (Man-made)

Dyed Crackle Quartz (Green)

Quenching-treated Quartz (Silicon Dioxide, SiO2)

Concrete rubble

Anthropogenic conglomerate

Titanium Coated Kyanite (Aura Kyanite)

Aluminosilicate (Al2SiO5) with a Titanium-Niobium vacuum-deposited coating

Diamond (or Diamond Simulant)

Carbon (C) or Cubic Zirconia (ZrO2)

Sapphire

Corundum (Al2O3)

Slag

Anthropogenic Vitreous Silica/Iron oxides

Synthetic Blue Aura Quartz

Silicon Dioxide (SiO2) with Metallic Infusion

Green glass-like cabochon, likely synthetic glass or resin

Unidentified green transparent material; possibly molded glass, synthetic spinel, or resin

Silicon Carbide (Carborundum)

Silicon Carbide (SiC)

Carved Mottled Greenish-Yellow Crystal/Glass Object

Unknown; possibly a form of quartz (chalcedony/jadeite/nephrite) or glass/resin.

Lava Rock with Fabric Impression

Scoria or Basalt with anthropogenic impressions

Blue goldstone

Man-made aventurine glass containing metallic copper particles; not a natural mineral

Green glass sphere/marble

Soda-lime glass (primarily SiO2, Na2O, CaO)

Green Aventurine

Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)

Pink/red faceted gemstone, likely synthetic ruby or pink sapphire

Corundum, aluminum oxide (Al₂O₃); likely lab-grown or treated material

Diamond (or Cubic Zirconia)

Carbon (C) or Zirconium Dioxide (ZrO2)

Chert (Arrowheads)

Microcrystalline Quartz (SiO2)

Emerald (cut gemstone)

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