Synthetic Material (Not A Rock Or Mineral)

Spinel

Magnesium Aluminum Oxide (MgAl2O4)

Malachite

Copper carbonate hydroxide [Cu2CO3(OH)2]

Sandstone

Sedimentary Rock (Quartz arenite)

Carborundum (Silicon Carbide)

Silicon Carbide (SiC)

Turquoise

Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]

Blue Goldstone

Aventurine Glass (SiO2 with Cobalt/Copper inclusions)

Synthetic Ruby (Jewel Bearings)

Synthetic Corundum (Al2O3 doped with Chromium)

Blue Cracked Quartz (Dyed Fire Crackle Quartz)

Silicon Dioxide (SiO2) with synthetic dye

Red corundum gemstone (likely synthetic ruby)

Ruby: corundum, aluminum oxide (Al₂O₃), chromium-colored; likely lab-grown material

Synthetic Resin / Plastic Figurine

Synthetic Polymer (Copolymer of Polyethylene or Resin)

Goldstone (Brown)

Aventurine glass

Blue Goldstone

Synthetic Avanturine Glass (or Aventurine Glass)

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

Ring with an Orange Inlay

N/A (Man-made object)

Man-made Jewelry Charm (Enameled Metal)

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

Red gemstone ring, likely ruby or synthetic ruby

Corundum (Al₂O₃), chromium-colored; the image alone cannot confirm whether it is natural or synthetic

Blue glass-like cabochon, likely dyed or synthetic material

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

Note: No specimen visible

Blue Sapphire

Corundum (Al2O3)

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

Blue glassy mineral fragment, possibly dyed/cobalt-colored calcite or aragonite

Uncertain from image; vivid blue coloration may indicate treated calcite (CaCO₃), aragonite (CaCO₃), or synthetic glass

Opalite

Synthetic Opalized Glass / Man-made Glass

Ruby ring

Corundum (Al₂O₃), red variety colored mainly by chromium

Opal-like cabochon ring stone

Likely common opal (hydrated amorphous silica, SiO₂·nH₂O); exact material uncertain from the photograph

Blue Sapphire

Corundum (Al2O3 with Cr, Fe, and Ti trace elements)

Faceted yellow-green gemstone, likely peridot

Olivine, typically forsterite-rich (Mg₂SiO₄)

Pink Cubic Zirconia (CZ)

Zirconium Dioxide (ZrO2)

Ruby in matrix (likely ruby-bearing corundum)

Corundum, aluminum oxide (Al₂O₃), chromium-bearing variety

Polished green-and-black banded cabochon (likely malachite imitation or dyed agate)

Uncertain; possible malachite (Cu₂CO₃(OH)₂), banded agate (SiO₂), or man-made glass

Hematite

Iron(III) oxide (Fe2O3)

Bismuth

Bismuth (Bi)

Ruby

Corundum (Al2O3 with Chromium trace)

Smoky Quartz

Silicon Dioxide (SiO2)

Gemstone-set ring, likely cubic zirconia or diamond

Likely synthetic cubic zirconia (zirconium dioxide, ZrO₂); stones may alternatively be diamond (carbon, C)

Clear Quartz (faceted) / Diamond Simulant

Silicon Dioxide (SiO2) / Cubic Zirconia (ZrO2)

Angular gray rock fragments

Unidentified fine-grained rock; the image does not show diagnostic features sufficient for a specific identification

Green glassy cabochon, likely dyed or synthetic material

Uncertain; possibly green obsidian, chrysoprase, or synthetic glass

Blue topaz pendant

Topaz (Al₂SiO₄(F,OH)₂), likely treated blue topaz

Yellow-orange faceted gemstone, likely citrine or yellow topaz

Citrine: quartz, SiO₂; yellow topaz: Al₂SiO₄(F,OH)₂

Tumbled hematite

Hematite (iron(III) oxide, Fe₂O₃)

Cubic Zirconia (CZ) Jewelry

Zirconium dioxide (ZrO2)