Small colored gemstone or glass cabochons (uncertain)
Not identifiable from the image; the pieces may be colored glass or synthetic stones rather than natural minerals.
Category
Browse synthetic polymer (synthetic material) specimens identified by the Rock Identifier community.
Small colored gemstone or glass cabochons (uncertain)
Not identifiable from the image; the pieces may be colored glass or synthetic stones rather than natural minerals.
Synthetic Convention Badge (Plastic/PVC)
Polyvinyl Chloride (PVC) / Polycarbonate
Clear Quartz (Faceted) or Cubic Zirconia / Glass imitation
SiO2 (if Quartz), ZrO2 (if Cubic Zirconia)
The user-provided image does not contain a rock or mineral specimen
Synthetic Resin Charm (Seal Shape)
Polymer Resin with plastic glitter / Polyethylene terephthalate glitters
Faceted gemstone in a jewelry setting
Indeterminate from image; likely quartz, cubic zirconia, or another transparent faceted stone
Blue Opal Inlay (Simulated/Lab-created)
Hydrated Amorphous Silica (SiO2·nH2O) with polymer resin
Diamond (or Diamond Simulant)
C (Carbon) or synthetic equivalent
Gemstone rings (stones not reliably identifiable)
The pale stone may be quartz or another translucent gem; the red stone may be ruby, garnet, or synthetic corundum. Image detail is insufficient for identification.
Silicon Carbide (Carborundum)
Silicon Carbide, SiC
Faceted purple-blue beads, likely synthetic glass or treated gemstone
Indeterminate; possible synthetic corundum, synthetic spinel, or dyed quartz (SiO₂)
Cubic Zirconia
Cubic Zirconium Dioxide (ZrO2)
Opalite
Man-made glass (traditionally simulated Opal)
Red gemstone ring, possibly synthetic ruby or red glass
Unidentified red stone; ruby is corundum (Al₂O₃), but the image cannot confirm its identity
Sodium Polyacrylate (Superabsorbent Polymer)
Sodium Polyacrylate [-CH2-CH(COONa)-]n
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
Green faceted gemstone, likely synthetic glass or peridot
Indeterminate from image; possible peridot (olivine, (Mg,Fe)₂SiO₄) or green synthetic glass
Faceted blue gemstone, likely blue topaz or synthetic spinel
Topaz (Al₂SiO₄(F,OH)₂) or synthetic spinel (MgAl₂O₄); image insufficient for certainty
Acrylic or Resin (Synthetic Imitation)
Polymethyl Methacrylate (PMMA) or Polyepoxide
Red glassy mineral specimen, likely synthetic ruby or red spinel
Most consistent with synthetic corundum (Al₂O₃, ruby) or synthetic spinel (MgAl₂O₄); exact identification requires testing
Ruby (in costume jewelry context)
Corundum (Al2O3) with Chromium impurities
Synthetic Resin (Artificial Specimen)
Polyurethane or Polyester Resin
Gemstone Ring
Various (Likely Glass, Cubic Zirconia, or assorted semi-precious stones)
Green gemstone ring, likely emerald simulant or jade
Uncertain; possible beryl (emerald, Be₃Al₂Si₆O₁₈) or jadeite (NaAlSi₂O₆), but the blurred image may show synthetic glass or another treated stone
Synthetic Sapphire and Ion-X Glass
Single-crystal Alumina (Al2O3) and Ion-strengthened Aluminosilicate Glass
Tumbled amber
Amber (fossilized plant resin; predominantly polymerized diterpenoid resin)
Cubic Zirconia (simulant) or Diamond
ZrO2 (Cubic Zirconia) or C (Diamond)
Pink faceted gemstone, likely synthetic or treated quartz
Quartz, silicon dioxide (SiO₂); exact identity cannot be confirmed from the image
Green faceted gemstone, likely synthetic glass or chrome-dyed stone
Undetermined; possibilities include green tourmaline, synthetic emerald, glass, or dyed quartz
Red faceted gemstone, likely synthetic ruby or red spinel
Ruby: corundum (Al₂O₃); spinel: MgAl₂O₄; visual identification alone is insufficient
Amethyst (likely synthetic or treated)
Purple quartz, SiO₂; color caused mainly by trace iron and irradiation
Artisanal Glass Beads (Simulated Goldstone or Aventurine Glass)
Silicon Dioxide (SiO2) with metallic inclusions
Small clear crystal, possibly quartz or glass-like gemstone
Uncertain; likely quartz (SiO₂), but the image is insufficient to exclude man-made glass or cubic zirconia
Red gemstone ring, likely synthetic ruby or red spinel
Ruby: corundum (Al₂O₃); spinel: MgAl₂O₄; exact identity requires testing
Opaline Glass (Opalite)
Synthetic Silicon Dioxide Glass
Crackled Quartz (Dyed)
Silicon Dioxide (SiO2)
Blue cabochon gemstone, likely synthetic glass or dyed stone
Indeterminate from image; possible glass, synthetic spinel, sodalite, or lapis lazuli
Likely weathered pebble or mineral fragment
Indeterminate; possibly quartz-rich stone, iron-stained feldspar, or a small chert fragment
Tumbled blue-green stone, possibly aquamarine or chalcedony
Indeterminate from image; possibilities include beryl (Be₃Al₂Si₆O₁₈) or cryptocrystalline quartz (SiO₂)
Sapphire
Corundum (Al2O3)
Red cabochon gemstone ring, likely synthetic ruby or red glass
Possibly corundum (Al₂O₃, chromium-colored); identity cannot be confirmed from the image
Black onyx or black obsidian bead bracelet
Likely chalcedony (microcrystalline quartz, SiO₂) if onyx; alternatively volcanic glass (obsidian)