Anthropogenic (Man Made Product Subject To Geological Processes)

Tumbled opalite (likely man-made glass)

Opalite, a trade name for opalescent glass; not natural opal

Green sea glass or tumbled green quartz (uncertain)

Likely quartz (SiO₂) if natural; alternatively man-made soda-lime glass

Quartzite

Metamorphic Quartzite (SiO2)

Blue Goldstone

Synthetic Avanturine Glass (or Aventurine Glass)

Obsidian Arrowhead

Volcanic Glass (Primary composition: SiO2)

Terracotta (Man-made ceramic brick fragment)

Baked clay / High-iron ceramic (Silicate-based ceramic)

Opalite (likely man-made opalescent glass)

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

Clear quartz tumbled stone

Quartz (silicon dioxide, SiO₂)

Quartzite

Metamorphic Quartzite (SiO2)

Possible weathered basalt or slag fragment

Basalt, chiefly plagioclase and pyroxene; identification is uncertain from the image

Tumbled aqua glassy mineral specimen, likely chrysocolla or turquoise imitation

Uncertain from image; possible chrysocolla (hydrated copper aluminosilicate, variable composition) or dyed/man-made glass

Red-orange cabochon, likely carnelian or glass imitation

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

Green Glass Cullet / Recycled Glass

Amorphous Silicon Dioxide (SiO2) with various metal oxides

Raw quartz crystal

Quartz (silicon dioxide, SiO₂), likely milky or included quartz

Rose Quartz Carving

Quartum roseum (Variety of Quartz, SiO2)

Vesicular basalt (probable iron-rich volcanic rock)

Basalt; chiefly plagioclase, clinopyroxene, olivine, and Fe-Ti oxides

Titanium Aura Quartz

Titanium-coated Silicon Dioxide (SiO2)

Goldstone (with Tiger's Eye and Quartz)

Aventurine glass (Synthetic SiO2 with Cu inclusions)

Pale green aventurine (likely quartz) sphere

Quartz, SiO₂; possibly pale green aventurine, with color from inclusions or treatment

Tumbled clear quartz (rock crystal)

Quartz, silicon dioxide (SiO₂)

Red cabochon gemstone ring (likely glass or synthetic stone)

Undetermined; the image does not establish a natural mineral identity

Quartzite

Metamorphosed Quartz Sandstone

Polished greenstone (likely serpentine or altered basalt)

Serpentinite, mainly serpentine-group minerals (Mg₃Si₂O₅(OH)₄); exact identification requires testing

Clear quartz crystal (likely)

Quartz, silicon dioxide (SiO₂)

Man-made Dyed Aura Quartz

Silicon Dioxide (SiO2) with metallic coating/dye

Blue Slag Glass

Amorphous Silica (Industrial byproduct)

Asphalt

Asphalt concrete (engineered material, not a naturally occurring rock/mineral in this form)

Quartzite

Metamorphic Quartzite (SiO2)

Diamond Plate (Steel)

Alloyed Carbon Steel or Aluminum with 'Durbar' pattern

Aura Quartz / Rainbow Aura Quartz

Silicon Dioxide (SiO2) with metallic vapor coating

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

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

Tumbled milky quartz

Quartz (silicon dioxide, SiO₂)

Purple glassy pebble, possibly slag glass

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

Goldstone (brown goldstone)

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

Sea Glass

Amorphous Silica (Glass) SiO2

Red-and-black slate

Slate, a fine-grained metamorphic rock composed mainly of clay-derived mica minerals and quartz

Dyed Quartz Geode

Silicon Dioxide (SiO2) with artificial pigment

Black Obsidian

Amorphous volcanic glass (SiO2 + impurities)

Clear quartz chips

Quartz (silicon dioxide, SiO₂)

Mica Group Minerals

There isn't a single scientific name as 'Mica' refers to a group of phyllosilicate minerals. Common scientific names include Muscovite (KAl₂ (AlSi₃O₁₀)(OH)₂), Biotite (K(Mg,Fe)₃AlSi₃O₁₀(OH)₂), Phlogopite (KMg₃AlSi₃O₁₀(OH)₂), and Lepidolite (K(Li,Al)₃(Al,Si,Rb)₄O₁₀(F,OH)₂).

Goldstone (aventurine glass)

Man-made copper-bearing glass; not a natural mineral (commonly sold as blue/brown goldstone)

Agate and millefiori glass jewelry

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