Synthetic (Man Made Material Mimicking Natural Stone)

Asphalt (Bituminous Pavement)

Bituminous mix (Aggregates with Bitumen binder)

Cullet (Slag Glass)

Amorphous Silica (SiO2) with various metal oxide colorants

Crackle Agate / Dyed Quartz

SiO2 (Silicon Dioxide)

Unidentifiable Rock Fragment

Aura Quartz (Rainbow Quartz)

Silicon Dioxide (SiO2) with metallic vapor coatings

Iron-rich slag or ironstone; appearance is not diagnostic

Likely iron-oxide-rich material (hematite, Fe₂O₃, and/or magnetite, Fe₃O₄); possibly smelting slag

Concrete Fragment

Hardened Portland cement and mineral aggregate

Polished black pebble, possibly obsidian

Volcanic glass (obsidian), likely; identification is tentative from the image

Blue-green faceted pendant stone

Undetermined; possibly synthetic glass or a blue-green gemstone such as topaz or quartz

Goldstone (Brown)

Aventurine glass

Blue opalite (often sold as synthetic opal)

Opalite glass; amorphous hydrated silica if natural opal (SiO₂·nH₂O)

Carborundum (Silicon Carbide)

Silicon Carbide (SiC)

Dyed Imperial Jasper (Sea Sediment Jasper)

Silicon Dioxide (SiO2) - Impure Quartz/Chalcedony

Cherry Quartz

SiO2 (Silicon Dioxide with iron-rich inclusions/dye)

Green iridescent glass cabochon or synthetic gemstone

Likely synthetic glass; possibly coated synthetic quartz or lab-created green gemstone

Note on Image Identification: Textile

N/A (Anthropogenic material)

Mystic Topaz

Aluminum Silicate Fluoride Hydroxide (Al2SiO4(F,OH)2) with metallic film coating

Tumbled milky chalcedony (likely common opalite-like quartz)

Chalcedony, microcrystalline SiO₂; possibly pale common opal, hydrated SiO₂·nH₂O

Goldstone (brown goldstone)

Man-made aventurine glass, typically copper-bearing silica glass

Strawberry Quartz

Silicon Dioxide (SiO2) with Hematite or Goethite inclusions

Polymictic conglomerate or breccia (possibly concrete-like aggregate)

Lithified polymictic gravel; clasts may include basalt, granite, quartzite, and other silicates

Blue Crackle Quartz (Dyed Quarzite)

Silicon Dioxide (SiO2) with artificial dye

Clear faceted gemstone in an ornate metal bracelet

Unidentified transparent faceted stone; possibilities include quartz (SiO₂), zircon (ZrSiO₄), or glass—image alone cannot distinguish them

Polished opalite (likely man-made opalescent glass)

Opalite is a commercial name, not a mineral; typically opalescent glass, often soda-lime silicate glass

Rounded graywacke or sandstone cobble

Lithified clastic sandstone; likely quartz–feldspar–lithic grain aggregate in a silica or calcite matrix

Likely clear quartz pebble or glassy quartz fragment

Quartz (silicon dioxide, SiO₂)

Cullet Glass (Slag Glass)

Amorphous Silicon Dioxide (Industrial byproduct)

Goldstone

Aventurine Glass (Man-made glass with copper inclusions)

Dragon's Breath (Mexican Opal Glass)

Artisan Foil Glass (SiO2 based)

Sea Glass

Man-made vitreous material

Artificial Rock Face (Faux Rock)

Glass Fiber Reinforced Concrete (GFRC)

Goldstone (Synthetic Aventurescence Glass)

Cuprous Aventurescent Glass (Silicon Dioxide with Copper inclusions)

Goldstone (Brown/Gold variety)

Aventurine Glass (SiO2 with Copper inclusions)

Synthetic Faux Fur Fursuit

Polyacrylonitrile / Polyester (Synthetic Textile)

Diamond / Clear Quartz / Glass paste

Carbon (Diamond) / Silicon Dioxide (Quartz)

Blue faceted gemstone, likely synthetic sapphire or blue glass

Corundum (Al₂O₃) if sapphire; identity cannot be confirmed visually

Clear-stone silver-tone teardrop earring

The stones may be colorless quartz or glass; the image does not allow reliable identification. Metal setting appears silver-tone.

Gemstone jewelry ensemble

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

Mystic Topaz (Treated Quartz or Topaz)

Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2] with thin-film metallic coating

Blue-green gemstone ring, likely treated turquoise or synthetic/treated beryl

Indeterminate from image; possibilities include turquoise (CuAl6(PO4)4(OH)8·4H2O), apatite, or treated beryl

Red gemstone ring, likely garnet or synthetic ruby

Possibly almandine garnet (Fe₃Al₂(SiO₄)₃) or corundum/ruby (Al₂O₃); image alone cannot distinguish

Concrete Fragment

Artificial Conglomerate (Cement and Aggregate)