Anthropogenic Material (Man Made Sedimentary Mimic)

Hematite

Iron(III) oxide (Fe2O3)

Sea Glass

Amorphous silicon dioxide (man-made glass weathered by nature)

Cubic Zirconia (Jewelry Setting)

Cubic Zirconia (ZrO2)

Dzi Bead (Etched Chalcedony)

Cryptocrystalline Quartz (SiO2) with chemical etching

Dragon's Breath (Mexican Opal Glass)

Artisan Foil Glass (SiO2 based)

Purple glassy pebble, possibly slag glass

Unidentified; likely man-made glass rather than a natural mineral

Blue Obsidian

Volcanic Glass (SiO2 with inclusions)

Milky quartz

Quartz (silicon dioxide, SiO₂)

Chert (Arrowhead/Projectile Point)

Microcrystalline quartz (SiO2)

Fossiliferous shale or slate with plant impressions

Carbonaceous mudstone/shale; possible fossil plant material (often fern-like impressions)

Black beaded bracelet, likely black onyx or glass

Possibly chalcedony (microcrystalline quartz, SiO₂); the beads may instead be man-made glass

Small rounded mineral pebble, possibly quartz

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

Titanium Aura Quartz

Silicon Dioxide (SiO2) coated with Titanium and Niobium

Glass / Silicon Dioxide (Man-made)

SiO2 (Amorphous Silicon Dioxide)

Quartz crystal fragment (likely milky quartz)

Quartz, silicon dioxide (SiO₂)

Dalmatian Stone

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

Rounded quartz-rich sandstone or quartzite pebble

Likely lithic/quartz arenite; composition mainly quartz (SiO₂) with minor feldspar and iron-oxide staining

Tumbled milky quartz pebble

Quartz (silicon dioxide, SiO₂), opaque-to-translucent milky variety

Synthetic Costume Glove (Paws)

Polyethylene terephthalate (Polyester) & Polyurethane blend

Goldstone (brown goldstone)

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

Green sea glass (likely slag glass or bottle glass)

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

Aura Quartz

Silicon Dioxide (SiO2) with metallic vapor coating

Opalite

Synthetically produced glass (Silicon Dioxide with metallic inclusions)

Bivalve Internal Mold Fossil

Steinkern (Bivalvia mold)

Man-made Glass (Tumbled/Shaped)

Amorphous Silicon Dioxide (SiO2) with metal oxide colorants

Engineerged Quartz (Quartz Composite)

SiO2 (Silicon Dioxide) in a polymer resin matrix

Chakra Stone Tower (Composite Multi-Mineral)

Crystalline Silicon Dioxide composite (SiO2) with various inclusions

Tumbled milky quartz

Quartz — silicon dioxide (SiO₂), cryptocrystalline or microcrystalline variety possible

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2AlSi3O10(OH)2)

Green sea glass (likely bottle glass)

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

Likely clear quartz crystal or glass-like gemstone

Quartz, silicon dioxide (SiO₂); exact identification is uncertain from the strongly magenta-lit image

Metallic sulfide mineral fragment, likely galena

Galena (lead sulfide, PbS), tentative identification

Opalite

Synthetic Glass / Man-made Opal Simulant

Opalite

Synthetic Opalized Glass / Man-made Glass

Blue sea glass or blue glassy mineral fragment

Uncertain; likely man-made soda-lime glass, not a natural mineral

Iron-rich chert or silicified sedimentary rock

Microcrystalline quartz (SiO₂), likely ferruginous chert/jasper

Chert (Arrowhead/Tool variety)

Microcrystalline Quartz (SiO2)

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)

Opalite

Synthetic Glass (SiO2 + impurities)

Opalite

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

Silicon Carbide (Carborundum)

Silicon Carbide (SiC) / Moissanite (natural)

Green Aventurine

SiO2 (Silicon Dioxide with Fuchsite inclusions)