Synthetic Glass (Often Categorized As A Simulated Mineral)

Man-made Ceramic / Clay Figurine

Aluminosilicate Ceramic (Processed Clay)

Moissanite

Silicon Carbide (SiC)

Cubic Zirconia (CZ)

Cubic Zirconium Dioxide (ZrO2)

Dyed Agate Slice

Silicon Dioxide (SiO2) with artificial dyes

Assorted gemstone jewelry

Mixed natural and synthetic gemstone cabochons and faceted stones; individual species cannot be determined reliably from this image

Smoky Quartz

Silicon Dioxide (SiO2)

Man-made Jewelry (Metal and Glass/Plastic)

Synthetic Alloy and Amorphous Solid (SiO2/Polymer)

Sapphire

Corundum (Al2O3)

Moonstone

Orthoclase Feldspar (KAlSi3O8)

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

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

Tumbled blue glass-like specimen, possibly dyed chalcedony or synthetic glass

Uncertain; possible dyed quartz/chalcedony (SiO₂), but appearance strongly suggests cobalt-blue glass

Emerald

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

Black Tourmaline

Schorl (Na(Fe²⁺)₃Al₆(OH)₄(BO₃)₃Si₆O₁₈)

Aura Quartz

Silicon Dioxide (SiO2) with Titanium/Metal vapor coating

Diamond (or Clear Quartz / Cubic Zirconia)

Carbon (C) or Silicon Dioxide (SiO2) / Cubic Zirconia (ZrO2)

Blue Sapphire

Corundum (Al2O3) with traces of Iron and Titanium

Plastic Building Toy (Lego-style piece)

Acrylonitrile Butadiene Styrene (ABS)

Carborundum (Silicon Carbide)

Silicon carbide (SiC)

Cubic Zirconia

Zirconium Dioxide (ZrO2)

Clear faceted gemstone, likely cubic zirconia

Synthetic zirconium dioxide (ZrO₂), probably cubic zirconia; exact identification requires testing

Faceted yellow-green gemstone, likely peridot

Olivine, typically forsterite-rich (Mg₂SiO₄)

Cubic Zirconia (as a jewelry specimen)

Zirconium dioxide (ZrO2)

Opal cabochon

Opal, hydrated amorphous silica (SiO₂·nH₂O), likely common or Ethiopian precious opal

Green glassy mineral specimen, likely rough emerald or green fluorite

Tentatively beryl (Be₃Al₂Si₆O₁₈), emerald variety; synthetic/man-made glass cannot be excluded from the photograph

Polished ruby cabochon (likely synthetic or treated)

Corundum, aluminum oxide (Al₂O₃), colored red by chromium

Tumbled amethyst

Amethyst, purple quartz (SiO₂)

Champagne topaz (likely)

Topaz, Al₂SiO₄(F,OH)₂

Gemstone jewelry ensemble

Likely mixed gemstone and glass-bead jewelry; exact stones cannot be determined from the image

Lapis Lazuli

Lapis Lazuli (Complex aggregate including Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Corundum

Corundum (Al2O3)

Tanzanite earrings

Tanzanite, blue-violet zoisite (Ca₂Al₃(SiO₄)₃(OH))

Synthetic Ruby (Jewel Bearings)

Synthetic Corundum (Al2O3 doped with Chromium)

Blue Cracked Quartz (Dyed Fire Crackle Quartz)

Silicon Dioxide (SiO2) with synthetic dye

Cubic Zirconia (Jewelry Setting)

Cubic Zirconia (ZrO2)

Man-made Jewelry Charm (Enameled Metal)

Not a natural mineral; composed of base metal alloy (likely zinc or brass) and epoxy resin/enamel.

Anthracite Coal

Anthracite (Carbon ≥ 86%)

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

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

Red gemstone ring, likely synthetic ruby

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

Lapidary Wax (imitation/wax model)

Hydrocarbon wax blend with colorant (imitating Lapis Lazuli/Emerald)

Hematite bead bracelet

Hematite (Fe₂O₃), likely polished or magnetically enhanced beads

Carborundum (Silicon Carbide)

Silicon Carbide (SiC)

Pink Cubic Zirconia (CZ)

Zirconium Dioxide (ZrO2)