Man Made Glass (Not A Natural Rock Or Mineral)

Sandstone

Arenite (SiO2 primarily)

Polished stone sphere, possibly agate or jasper

Likely microcrystalline quartz (SiO₂); exact variety cannot be confirmed from the image

Small rounded pebble (rock type indeterminate)

Unidentified fine-grained lithic pebble

Goldstone

Man-made glass infused with metallic copper

Sea Glass

Man-made silicate glass weathering product

Small greenish crystal/mineral fragment

Indeterminate; possibly olivine, quartz, or a green gemstone fragment

Sandstone-based Concrete Fragment

Cementitious Composite with Sedimentary Aggregate

Green Sea Glass

Amorphous Silica (man-made glass), SiO2 + additive metal oxides

Lava Rock with Fabric Impression

Scoria or Basalt with anthropogenic impressions

Sandstone

Arenite (variable SiO2 composition)

Polished, carved gemstone (possibly dyed agate or glass-like material)

Unconfirmed from the image; no specific mineral can be identified reliably

Sandstone (likely Quartzose Sandstone)

Arenite

Gold coin pendant on a chain

Gold (Au), likely a coin set in a gold-colored metal mount

Slag

Anthropogenic glassy silicate

Polished labradorite sphere

Labradorite, calcic plagioclase feldspar ((Ca,Na)(Al,Si)₄O₈)

Rounded graywacke or sandstone cobble

Lithified clastic sandstone; likely quartz–feldspar–lithic grain aggregate in a silica or calcite matrix

Bouncy Ball (Synthetic Rubber Polymer)

Polybutadiene / Ethylene Vinyl Acetate (EVA)

Mixed polished gemstone and mineral collection

Primarily quartz varieties (SiO₂), plus probable aventurine, rose quartz, amethyst, agate, jasper, serpentine, feldspar, and possibly dyed or man-made glass pieces

Milky quartz (likely quartz crystal fragment)

Quartz, silicon dioxide (SiO₂)

Blue Sandstone

Man-made glass with cobalt and copper inclusions

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

Blue Goldstone

Synthetic glass with cobalt and copper inclusions

Polished labradorite pendant

Labradorite, a calcium-rich plagioclase feldspar (approximately NaAlSi₃O₈–CaAl₂Si₂O₈)

Yellow cabochon gemstone, likely citrine or yellow glass imitation

Quartz (SiO₂), if natural citrine; visual evidence is insufficient to exclude man-made glass or resin

Faceted glass-like gemstone object

Likely synthetic glass or cubic zirconia; exact material cannot be confirmed from the image

Green Glass Slag

Amorphous Silicon Dioxide (SiO2) with metal oxide impurities

Green Aventurine

Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2

Asphalt Chunk

Asphalt concrete

Likely blue glass or synthetic gemstone jewelry

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

Goldstone

Man-made glass containing cuprous oxide

Green Aventurine

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

Cobalt Glass Slug (Cullet)

Man-made Silicate Glass with Cobalt Oxide (CoO)

Sandstone Concretion

Limonitic Sandstone Concretion

Stainless Steel (Polished)

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

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

Acrylonitrile Butadiene Styrene (ABS) Plastic with electronic components

Fluorite (Polished Point/Tower)

Calcium Fluoride (CaF2)

Blue slag glass / industrial smelter slag

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

Pale green aventurine (likely quartz) sphere

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

Conglomerate

Conglomerate (Sedimentary rock containing rounded clasts)

Dyed Agate / Painted Stone

Silicon Dioxide (SiO2) with artificial pigment

Carved Stone Turtle

Carved Soapstone and Quartz

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