Synthetic Polymer (Synthetic Material)

Dyed Agate Slice

Silicon Dioxide (SiO2) with artificial dyes

Diamond (or Cubic Zirconia)

Crystallized Carbon (C) for Diamond; Zirconium Dioxide (ZrO2) for CZ

Note: The image provided is a fabric sock, not a geological specimen.

Polyester-Cotton Blend with Elastane

Raw ruby (likely corundum)

Corundum, Al₂O₃; red color caused mainly by chromium

Faceted transparent gemstone, likely glass or cubic zirconia

Uncertain from image; possible cubic zirconia (zirconium dioxide, ZrO₂) or glass imitation

Diamond

Diamond (C)

Clear faceted gemstone, likely synthetic cubic zirconia

Cubic zirconia (zirconium dioxide, ZrO₂); visual identification is not definitive and diamond or synthetic moissanite are alternatives

Man-made earbud charging case (Not a rock or mineral)

Acrylonitrile Butadiene Styrene (ABS) Plastic with electronic components

Faceted yellow-green gemstone, likely peridot

Olivine, typically forsterite-rich (Mg₂SiO₄)

Painted River Rock

Artificially Coated Sedimentary Rock

Carborundum (Silicon Carbide)

Silicon Carbide (SiC)

Opalite

Synthetic Glass (Amorphized Silicon Dioxide)

Lava Stone and Chakra Beads

Basalt (with various mineral/synthetic beads)

Opalite

Synthetic Fluorescent Glass (SiO2 + impurities)

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

Smoky Quartz

Silicon Dioxide (SiO2)

Ruby (mounted cabochon)

Corundum, Al₂O₃; red color typically from chromium

Cubic Zirconia (as a jewelry specimen)

Zirconium dioxide (ZrO2)

Blue Sapphire (likely lab-grown or treated)

Corundum (Aluminum Oxide, Al2O3)

Green cabochon gemstone, likely glass-filled or synthetic emerald imitation

Uncertain; possible synthetic emerald (beryl, Be₃Al₂Si₆O₁₈) or green glass

Blue Goldstone

Aventurine Glass (SiO2 with Cobalt/Copper inclusions)

Blue glass-like cabochon, likely dyed or synthetic material

Uncertain; possibly dyed chalcedony, synthetic spinel, or blue glass

Clear quartz sphere

Quartz (silicon dioxide, SiO₂), likely rock crystal or low-grade milky quartz

Staurolite (Fairy Stone)

Staurolite (Fe2+2Al9Si4O23(OH))

Ruby (Corundum in Ring Setting)

Corundum (Al2O3:Cr)

Malachite

Copper carbonate hydroxide [Cu2CO3(OH)2]

Faceted Diamond or Cubic Zirconia

Carbon (C) for Diamond; Zirconium dioxide (ZrO2) for CZ

Blue sapphire ring

Corundum, aluminum oxide (Al₂O₃), blue variety colored mainly by iron and titanium

Blue gemstone ring, likely sapphire

Corundum, Al₂O₃ (probable blue sapphire); surrounding stones may be diamonds or simulants

Blue Sapphire

Corundum (Al2O3) with traces of Iron and Titanium

Faceted citrine-colored gemstone

Likely citrine (quartz, SiO₂); possibly yellow glass or synthetic gem

Opalite-style pendant (likely synthetic glass, not natural opal)

Opalescent glass; commonly sold as “opalite” (not a recognized mineral species)

Faceted blue gemstone, likely blue sapphire

Corundum (Al₂O₃); identification from the image is provisional

Anthropogenic Heat Source (Electronic/Industrial Interface)

Thermal IR emission (Electronic infrastructure)

Blue Sapphire (Synthetic or Man-made Glass Imitation)

Corundum (Al2O3) if natural; Lead-glass or Spinal if synthetic

Red cabochon ring, likely ruby or synthetic ruby

Corundum (Al₂O₃), possibly chromium-bearing ruby; the image cannot establish whether it is natural or synthetic

Blue Sapphire

Corundum (Al2O3)

Cubic Zirconia (CZ)

Cubic Zirconium Dioxide (ZrO2)

Clear faceted gemstone, likely quartz (rock crystal)

Quartz, silicon dioxide (SiO₂); exact identity cannot be confirmed from the glare-heavy image

Ruby

Corundum (Al2O3 with Chromium traces)