Man Made Glass (Not A Natural Rock Or Mineral)

Man-made earbud charging case (Not a rock or mineral)

Acrylonitrile Butadiene Styrene (ABS) Plastic with electronic components

Sandstone Concretion

Clastic Sedimentary Rock (primarily SiO2 with mineral cement)

Likely blue glass or synthetic gemstone jewelry

Uncertain; possibly synthetic spinel, cubic zirconia, or blue glass

Diamond Druzy (Crystalline Diamond)

Carbon (C)

Concrete with Aggregate

Composite construction material; primary matrix is Calcium Silicate Hydrate (C-S-H)

Quartz crystal (likely clear quartz)

Quartz, silicon dioxide (SiO₂)

Diamond

Carbon (C)

Weathered concrete or cementitious slab (not natural rock)

Artificial calcium-silicate cement composite; likely Portland cement concrete

Beaded gemstone bracelet, likely lapis lazuli and pale quartz/agate

Lapis lazuli: lazurite-rich rock, chiefly (Na,Ca)₈(AlSiO₄)₆(S,SO)₂; pale beads are uncertain

Sandstone

Arenite

Carved Stone Turtle

Carved Soapstone and Quartz

Sandstone

Arenite (SiO2 primarily)

Sandstone

Arenite (with iron oxide cement)

Unidentified gray metallic object

Not determinable from the image; likely a metal screw or manufactured fastener rather than geological material

Blue slag glass / industrial smelter slag

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

Aluminum Slag

Anthropogenic Aluminum (Al)

Corundum (Pink Sapphire / Ruby)

Al2O3 (Aluminum Oxide)

Goldstone (likely blue-free synthetic goldstone pendant)

Synthetic aventurine glass; silica glass with dispersed metallic copper crystals

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

Smoky Quartz Cluster

Smoky Quartz (Silicon Dioxide - SiO2)

Green Slag Glass

Cullet (Amorphous Silicon Dioxide with impurities)

Green glassy mineral fragment, possibly fluorite

Fluorite (calcium fluoride, CaF₂), tentative identification

Cobalt Glass Slug (Cullet)

Man-made Silicate Glass with Cobalt Oxide (CoO)

Slag Glass

SiO2 (Silicon Dioxide) with impurities

Concrete Fragment

Artificial Conglomerate (Cement and Aggregate)

Goldstone (Red)

Aventurine Glass

Ferrochrome Slag

Anthropogenic slag (Fe-Cr alloy waste)

Natural Pearl

Calcium carbonate (primarily Aragonite and Conchiolin), CaCO3

Sandstone

Arenite (composed primarily of SiO2)

Concrete with Aggregate

Artificial Conglomerate (Cement and Aggregate)

Polished brown jasper (likely brecciated or orbicular jasper)

Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and other mineral inclusions

Conglomerate

Conglomerate Rock (Paraconglomerate)

Glass Nugget (Tumbled Glass)

Amorphous Silicon Dioxide (SiO2) with additives

Sandstone (likely Fossiliferous)

Arenite / Fossiliferous Sandstone (SiO2 composition)

Weathered iron-rich concretion or ironstone nodule

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

Obsidian (likely black volcanic glass)

Obsidian; primarily amorphous volcanic silica glass, approximately SiO₂-rich rhyolitic composition

Eroded Brick or Pumice-like Scoria

Vesicular Basalt / Scoria (Anthropogenic variant: Eroded Firebrick)

Red cabochon gemstone ring (likely glass or synthetic stone)

Undetermined; the image does not establish a natural mineral identity

Green glassy mineral specimen, likely rough emerald or green fluorite

Tentatively beryl (Be₃Al₂Si₆O₁₈), emerald variety; synthetic/man-made glass cannot be excluded from the photograph

Titanium-coated Metal Cube (Man-made Fidget Toy)

Titanium-anodized or electroplated alloy (e.g., Ti-coated Zinc or Aluminum)

Cubic Zirconia

Cubic Zirconium Dioxide (ZrO2)

Milky quartz (rough fragment)

Quartz, silicon dioxide (SiO₂)