Anthropogenic Material (Man Made Rock)

Ocean Jasper Mushroom

Orbicular Jasper (Silicon Dioxide, SiO2 mixed with various impurities)

Brick fragment (Man-made material)

N/A (Fired clay)

Crushed Stone (Likely Limestone or Granite)

Calcium Carbonate (CaCO3) for Limestone / Quartz and Feldspar for Granite

Dragon's Breath (Mexican Opal Glass)

Artisan Foil Glass (SiO2 based)

Blue Goldstone

Man-made glass with crystalline copper/cobalt inclusions

Goldstone (brown goldstone)

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

Opalite glass sphere (likely synthetic imitation)

Man-made opalescent glass; not natural opal

Opalite

Synthetic glass / Opalized glass

Small rounded mineral pebble, possibly quartz

Uncertain; likely microcrystalline or crystalline SiO₂ (quartz), potentially with iron-oxide staining

Dalmatian Stone

Dalmatian Jasper (a misnomer for an Aplite with Arfvedsonite spots)

Felsic Drill Core (likely Gneiss or Granite)

Felsic Metamorphic Rock (Gneissic profile)

Agate and millefiori glass jewelry

Agate: microcrystalline quartz (SiO₂); millefiori element appears to be man-made glass

Colorless quartz crystal (likely quartz fragment)

Quartz, silicon dioxide (SiO₂)

Polished blue glassy mineral specimen, likely sodalite or blue aventurine

Most consistent with sodalite (Na₈Al₆Si₆O₂₄Cl₂), though dyed quartzite or blue glass cannot be excluded from the photograph

Porcelain (White Ceramic)

Mullite-bearing Vitrified Ceramic (Major phases: Mullite Al6Si2O13, Glassy Silica SiO2)

Polymictic conglomerate or breccia (possibly concrete-like aggregate)

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

Mohave Turquoise (Composite/Stabilized)

Hydrated copper aluminium phosphate (CuAl6(PO4)4(OH)8·4H2O) with stabilizing resin and metallic inclusions

Opalite

Man-made glass (traditionally simulated Opal)

Blue slag glass / industrial smelter slag

Man-made iron-rich silicate slag; composition variable, commonly Fe–Ca–Mg–Al silicates with glassy phases

Blue Obsidian

Volcanic Glass (SiO2 with inclusions)

Green sea glass (likely slag glass or bottle glass)

Man-made soda-lime silicate glass; not a naturally occurring mineral

Asphalt Concrete (Bituminous Concrete)

Bituminous aggregate

Opalite (Synthetic Moonstone/Sea Opal)

Silicon Dioxide (SiO2) glass with metallic inclusions

Milky quartz

Quartz (silicon dioxide, SiO₂)

Chert (Arrowhead Fragment)

Microcrystalline Quartz (SiO2)

Blue cabochon gemstone, likely synthetic glass or dyed stone

Indeterminate from image; possible glass, synthetic spinel, sodalite, or lapis lazuli

Opalite

Synthetic glass (SiO2 + impurities)

Diamond

Native Carbon (C)

Quartz (Engineered Stone Countertop)

Silicon Dioxide (SiO2) with polymer resins

Sandstone Concretion

Clastic Sedimentary Concretion (SiO2 with Iron Oxide)

Conglomerate

Clastic Sedimentary Rock (Conglomerate)

Green sea glass (likely bottle glass)

Man-made soda–lime silicate glass; not a natural mineral

Man-made Synthetic Material (Costume Faux Fur)

Synthetic Polymer (Polyester/Acrylic)

Blue glassy gemstone-like specimen

Indeterminate; possibly dyed or treated turquoise, blue apatite, or man-made glass

Red Sandstone or Brick Fragment

Arenite (if sandstone)

Red glassy gemstone, possibly garnet

Unidentified red transparent material; garnet group (X₃Y₂(SiO₄)₃) is a possibility

Goldstone

Avventurina (Man-made Glass with Copper inclusions)

Concretion

Sedimentary Concretion (Ironstone / Calcite Concretion)

Sandstone Concretion

Sedimentary Clastic Rock (Silicate-rich)

Opalite (a synthetic glass)

Silicon Dioxide (SiO2) with various additives; not a true mineral but a man-made gem simulant

Opalite

Synthetic glass / Opaque silicious glass

Blue Goldstone

Aventurine Glass