Man Made Material (Simulated Mineral)

Opalite

Synthetic opalescent glass

Sea Glass

Amorphous silicon dioxide (SiO2) - Man-made glass tumbled by nature

Clear quartz tumbled stone

Quartz (silicon dioxide, SiO₂)

Opalite (Man-made Glass)

Synthetic Silicon Dioxide Glass (SiO2 + metal oxides)

Opalite

Synthetic Opalite Glass (Silicon Dioxide)

Green Aventurine

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

Blue-dyed tumbled quartz or glass imitation

Quartz (SiO₂), appearance possibly enhanced with blue dye; identity uncertain from image

Black Obsidian

Amorphous volcanic glass (SiO2 + impurities)

Pyrite Concretion (Grapestone)

Iron Sulfide (FeS2) Concretion

Milky quartz (likely quartz crystal fragment)

Quartz, silicon dioxide (SiO₂)

Lapis Lazuli (Simulated)

Lapis Lazuli (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2

Pink Tumbled Quartz (Dyed)

Silicon Dioxide (SiO2)

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

Carved Stone Turtle

Carved Soapstone and Quartz

Green sea glass or tumbled green quartz (uncertain)

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

Goldstone (Brown/Gold variety)

Aventurine Glass (SiO2 with Copper inclusions)

Aura Quartz (Titanium/Gold coated)

Silicon Dioxide (SiO2) with metallic vapor deposition

Sandstone Anvil / Nutting Stone

Quartzose Sandstone (Sedimentary Rock)

Sea Glass

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

Aura Quartz

Titanium/Titanium-Gold treated Silicon Dioxide (SiO2)

Blue tumbled glass-like specimen; likely blue slag glass

Likely man-made glass (silicate glass), not a natural mineral; exact material cannot be confirmed from the image

Blue glassy tumbled stone, likely blue chalcedony or slag glass

Chalcedony (microcrystalline SiO₂), possibly man-made blue glass

Sea Glass

Amorphous Silicon Dioxide (Man-made glass weathered by nature)

Tumbled milky quartz

Quartz (silicon dioxide, SiO₂)

Red Slag Glass

Amorphous Silica (Industrial byproduct with metallic oxide dopants)

Blue goldstone beads

Man-made aventurine glass (silica glass with metallic copper inclusions), not natural lapis lazuli

Sandstone Concretion

Clastic Sedimentary Rock (primarily SiO2 with mineral cement)

Man-made Carved Stone (Scream Mask/Skull motif)

Carved Soapstone or Serpentine-rich rock

Baked-clay ceramic fragment (likely brick or pottery)

Fired clay, primarily aluminosilicate minerals; not a natural rock

Polished silver sheen obsidian heart

Obsidian (volcanic glass), primarily rhyolitic silica-rich glass

Blue Goldstone

Goldstone (artificial glass)

Chert Concretion (with typical hematite/limonite staining)

Sedimentary Concretion (SiO2 with FeO(OH)⋅nH2O)

Titanium Amethyst Geode

Silicon Dioxide (SiO2) with Titanium/Metal Vapor Deposition Layer

Possible weathered basalt or slag fragment

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

Hematite

Iron(III) oxide (Fe2O3)

Green glass sphere/marble

Soda-lime glass (primarily SiO2, Na2O, CaO)

Small clear crystal, possibly quartz or glass-like gemstone

Uncertain; likely quartz (SiO₂), but the image is insufficient to exclude man-made glass or cubic zirconia

Goldstone (Brown)

Aventurine Glass (Silicon Dioxide infused with Copper crystals)

Sandstone Concretion

Clastic sedimentary rock (primarily Quartz SiO2)

Blue glassy fragment among beach gravel

Likely cobalt-blue man-made glass; not a natural mineral specimen

Dyed Blue Agate (Dragon Vein Agate)

Silicon Dioxide (SiO2) with artificial cobalt/organic dyes

Diamond

Native Carbon (C)