Man Made (Synthetic Rock)

Blue Goldstone

Aventurine Glass

Opalite

Man-made Synthetic Glass (Silicon Dioxide with metal additives)

Cultured Marble (Synthetic)

Polymer-matrix composite (typically calcium carbonate in polyester resin)

Opalite

Synthetic Glass (Simulated Moonstone/Opal)

Blue Cracked Quartz (Dyed Fire Crackle Quartz)

Silicon Dioxide (SiO2) with synthetic dye

Opalite

Synthetically produced glass (Silicon Dioxide with metallic inclusions)

Opalite glass sphere (likely synthetic imitation)

Man-made opalescent glass; not natural opal

Opalite

Synthetic glass (SiO2 + metal additions)

Polished gemstone tower assortment

Primarily quartz varieties and simulants; apparent amethyst (SiO₂), rose quartz (SiO₂), clear quartz (SiO₂), fluorite (CaF₂), sodalite, malachite, and possibly dyed or composite stones

Opalite

Synthetic Opalite Glass (Silicon Dioxide)

Not a geological specimen

N/A (man-made object)

Opalite

Synthetic Glass (Hydrated Crystalline Silicon Dioxide simulation)

Opalite crescent pendant

Opalite (man-made opalescent glass; not a natural mineral)

Dyed or synthetic turquoise-blue glass-like specimen

Likely man-made colored glass or resin; exact identification requires testing

Opalite

Synthetic Glass (typically Silica/Magnesium based with metal additives)

Opalite (likely man-made opalescent glass)

Opalite; not a true mineral, typically synthetic opalescent glass (silica-based)

Cherry Quartz with Rose Quartz

Crystalline Quartz (SiO2) with glass-based synthetic components

Cubic Zirconia (Man-made)

Cubic Zirconia (ZrO2) with Enamel and Metal Alloy

Cubic Zirconia (Simulated Diamond)

Cubic Zirconia (ZrO2)

Goldstone

Aventurine glass (Synthetic glass with copper inclusions)

Opalite

Man-made opalescent glass (SiO2 + metal oxides)

Opalite (likely man-made glass)

Opalite; amorphous silica glass, not a natural mineral

Red glassy cabochon, likely synthetic ruby or red glass

Uncertain; possible synthetic corundum (Al₂O₃, chromium-colored) or man-made glass

Faceted clear gemstone, likely quartz or glass imitation

Most likely quartz (SiO₂); exact identification requires refractive-index and hardness tests

Note: Item is a Synthetic/Man-made Object

Titanium-coated Stainless Steel (Fe-Cr-Ni-Ti)

Opalite

Synthetic Glass, SiO2 base with metallic inclusions

Note on Image Identification: Textile

N/A (Anthropogenic material)

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

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

Blue Goldstone

Synthetic Avanturine Glass (or Aventurine Glass)

Hematite

Iron(III) oxide (Fe2O3)

Red-orange cabochon, likely carnelian or glass imitation

Carnelian: chalcedony (microcrystalline SiO₂), commonly iron-colored

Dyed Crackle Quartz

Silicon Dioxide (SiO2) with synthetic dye

Blue Sapphire (Synthetic or Man-made Glass Imitation)

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

Not a rock, mineral, or geological specimen

Titanium-coated Metal Cube (Man-made Fidget Toy)

Titanium-anodized or electroplated alloy (e.g., Ti-coated Zinc or Aluminum)

Blue Goldstone

Aventurine Glass

Chert (Arrowheads)

Microcrystalline Quartz (SiO2)

Exposed Aggregate Concrete (Pea Gravel)

Concrete with Siliceous Alluvial Gravels

Green Glass (often marketed as 'Obsidian' or 'Green Quartz')

Amorphous Silica (SiO2) with copper or chromium additives

Unidentifiable Rock Fragment

Asphalt Concrete

Bituminous conglomerate

Slag (Industrial Byproduct)

Artificial silicate/iron byproduct