Costume Jewelry with Synthetic Gemstones
Synthetic Cubic Zirconia and Glass (SiO2 / ZrO2)
Category
Browse manufactured stone specimens identified by the Rock Identifier community.
Costume Jewelry with Synthetic Gemstones
Synthetic Cubic Zirconia and Glass (SiO2 / ZrO2)
Faceted Glass (Costume Jewelry)
Amorphous Silicon Dioxide with colorants (Glass)
Blue Goldstone
Synthetic glass with copper or cobalt/manganese inclusions
Stainless Steel Spoon
Iron-Chromium Alloy (Fe + Cr + Ni)
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Note: Item is not a geological specimen
Guitar Components (Steel, Nickel, Plastic, Wood)
Cubic Zirconia
Zirconium dioxide (ZrO2)
Opalite (Synthetic Moonstone/Opal)
Synthetic Silica Glass
Malaysian 50 Sen Coin
Coinage (specific alloy unknown without metallurgical analysis, but typically brass or bronze for this denomination and era)
Gastly (Trick or Trade Halloween Series)
Cellulose-carbonaceous composite (Lignocellulose laminated with pigmentary polymers)
Synthetic Zinc/Polycarbonate Composite (Bey-specimen)
Zinc Alloy (Zamak 3) with Polycarbonate (C15H16O2)n Overlay
Synthetic Wolf Plush (Non-mineral)
Canis lupus similis (Prop material: Polyester & Synthetic fibers)
Opalite
Synthetic glass (SiO2 + metal additions)
Goldstone
Aventurine Glass (Man-made glass with copper inclusions)
Opalite crescent pendant
Opalite (man-made opalescent glass; not a natural mineral)
Quartz pebble in concrete
Quartz (SiO₂), embedded in Portland-cement concrete
Glass
Amorphous Silicon Dioxide (SiO2)
Ring with an Orange Inlay
N/A (Man-made object)
Clear quartz sphere or polished quartz cabochon (tentative)
Quartz, silicon dioxide (SiO₂); appearance may also be consistent with ordinary glass, which cannot be ruled out from the image alone
Synthetic Marbled Aggregate (Footwear Component)
Ethylene-vinyl acetate (Croslite™)
Dragon Vein Agate
Silicon Dioxide (SiO2)
Likely small metallic meteorite fragments
Unclassified iron or stony-iron meteorite; mineralogy cannot be confirmed from the image
Terracotta (Man-made ceramic brick fragment)
Baked clay / High-iron ceramic (Silicate-based ceramic)
Blue goldstone beads
Man-made aventurine glass (silica glass with metallic copper inclusions), not natural lapis lazuli
Sea Glass
Amorphous silicon dioxide (Man-made glass weathered by nature)
Glass Nugget (Tumbled Glass)
Amorphous Silicon Dioxide (SiO2) with additives
Gold (10K Alloy)
Aurum (Au) with alloying metals (Cu, Ag, Zn)
Red Swirl Beads (Likely Resin or Glass, simulating Red Jasper or Agate)
N/A (for the beads as pictured); Red Jasper: SiO2 (Chert variety); Red Agate: SiO2 (Chalcedony variety)
Blue glass-like gemstone specimen (likely dyed or synthetic quartz)
Uncertain; possibly blue-dyed quartz or synthetic glass, not confidently identifiable from the image
Calcite (likely chalky calcite fragment)
Calcite, calcium carbonate (CaCO₃)
Green glass-like cabochon, likely synthetic glass or resin
Unidentified green transparent material; possibly molded glass, synthetic spinel, or resin
Cubic Zirconia (Set in Jewelry)
Zirconium Dioxide (ZrO2)
Leopard jasper (orbicular jasper)
Silicified volcanic rock, chiefly microcrystalline quartz/chalcedony (SiO₂) with feldspar and iron-oxide inclusions
Goldstone (aventurine glass)
Synthetic copper-bearing soda-lime glass; commonly sold as red goldstone
Black Opal (Triplet)
Hydrated Silica (SiO2·nH2O)
Boxwork or Septarian Concretion
Septarian nodule / Boxwork weathering
Cobalt Blue Sea Glass
Amorphous Silica Glass (SiO2 + CoO)
Colorless faceted gemstone (likely cubic zirconia)
Cubic zirconia, zirconium dioxide (ZrO₂); possibly synthetic quartz or glass imitation
Likely obsidian (possibly tektite or slag glass)
Volcanic glass; primarily SiO₂, noncrystalline
Blue-dyed howlite beads (likely)
Howlite, Ca₂B₅SiO₉(OH)₅, commonly dyed blue to imitate turquoise
Wallboard/Drywall (Gypsum-based)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
Opalite
Synthetic Opalite (Man-made glass)