Sedimentary (Man Made Composite)

Asphalt (Bituminous Pavement)

Bituminous mix (Aggregates with Bitumen binder)

Decorated turquoise-like bead or mineral pendant

Likely turquoise [CuAl₆(PO₄)₄(OH)₈·4H₂O], possibly dyed composite or blue-green jasper

Felsic Drill Core (likely Gneiss or Granite)

Felsic Metamorphic Rock (Gneissic profile)

Sandstone (with man-made markings)

Arenite (composed primarily of Quartz, SiO2)

Asphalt (Bituminous Concrete)

Bituminous mix containing aggregates and petroleum-based binder (CnH2n+2)

Asphalt (Bituminous Concrete)

Composite material (bitumen binder with mineral aggregate)

Obsidian

Volcanic Glass

Blue Obsidian

Volcanic Glass (Amorphous)

Diamond (or Simulant)

Carbon (C)

Opalite

Man-made Glass (Synthetic Opalized Glass)

Blue Goldstone

Man-made glass infused with copper crystals

Weathered iron-rich concretion or ironstone nodule

Goethite–hematite limonite concretion (FeO(OH), Fe₂O₃, and hydrated iron oxides)

Sandstone Concretion

Clastic Sedimentary Concretion (SiO2 with Iron Oxide)

Asphalt (Road Aggregate)

Asphalt concrete / Bituminous mixture

Blue opalescent glass-like gemstone (possibly imitation opalite)

Likely man-made opalite glass; composition varies, typically silica-based glass

Sea Glass

Silicon dioxide (mostly)

Blue crystal pendant (likely blue glass or synthetic crystal)

Not identifiable from the image; possibly synthetic quartz or glass, rather than a natural mineral

Painted River Rock

Artificially Coated Sedimentary Rock

Conglomerate

Clastic Sedimentary Rock (Conglomerate)

Aura Quartz Geodes (Lab-Altered)

Silicon Dioxide (SiO2) with Metallic Vapor Deposition

Crackle Agate / Dyed Quartz

SiO2 (Silicon Dioxide)

Sandstone Concretion

Clastic Sedimentary Concretion (typically Quartz/Silica with Iron Oxide)

Concretion

Sedimentary Concretion (Ironstone / Calcite Concretion)

Small black stone fragment (possibly obsidian)

Unidentified dark rock; obsidian is volcanic glass (composition typically rhyolitic)

Obsidian

Volcanic Glass

Dyed Agate

Chalcedony (SiO2)

Conglomerate

Conglomerate (Sedimentary rock containing rounded clasts)

Sandstone Concretion

Sedimentary Clastic Rock (Silicate-rich)

Stainless Steel (Polished)

Ferrous Alloy containing Iron (Fe), Chromium (Cr), and Carbon (C)

Ceramic or Polished Stone Heart (Anthropogenic Material)

Glazed Ceramic (Silicon Dioxide based coating on Alumina Silicate body) or Polished Limestone/Marble (Calcium Carbonate, CaCO3)

Blue-green chrysocolla rough specimen

Chrysocolla, hydrated copper aluminosilicate; commonly associated with malachite, quartz, and limonite

Sandstone (with Liesegang rings or joints)

Clastic Sedimentary Rock (primarily Quartz with Iron Oxide cement)

Brick fragment (Man-made material)

N/A (Fired clay)

Cobalt Blue Glass / Cullet Glass

Silicon dioxide (Amorphous man-made glass)

Unidentified translucent crystal/mineral fragment

Likely quartz (SiO₂), but visual identification is uncertain

Asphalt (Bituminous pavement)

Bituminous concrete / Asphalt

Goldstone

Man-made glass with copper inclusions

Sandstone Concretion

Septarian or Carbonate-cemented Sandstone Concretion

Sandstone Anvil / Nutting Stone

Quartzose Sandstone (Sedimentary Rock)

Decorative gemstone-chip jewelry (likely turquoise, coral, and assorted beads)

Predominantly turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; other pieces appear to be dyed coral or red stone, and possibly shell/metal components

Porcelain Tile (Sandstone-look)

Man-made Ceramic (resembling Quartz-rich Sandstone)

Asphalt aggregate (crushed stone in bitumen)

Artificial composite; predominantly crushed granite, basalt, limestone, and/or recycled aggregate bound by bitumen