Man Made Object (Metalwork)

Blue Goldstone

Man-made glass with crystalline copper/cobalt inclusions

Concrete Fragment

Hardened Portland Cement Composite

Green Aventurine

SiO2 (Silicon Dioxide with Fuchsite inclusions)

Slag

Anthropogenic glassy silicate

Sandstone-based Concrete Fragment

Cementitious Composite with Sedimentary Aggregate

Aura Quartz Geodes (Lab-Altered)

Silicon Dioxide (SiO2) with Metallic Vapor Deposition

Likely weathered granite or granitic gneiss fragment

Granite; primarily quartz, feldspar, and mica

Weathered concrete or cementitious slab (not natural rock)

Artificial calcium-silicate cement composite; likely Portland cement concrete

Black onyx or black agate cabochon

Cryptocrystalline chalcedony, SiO₂; likely black chalcedony/onyx, though dyed material is possible

Bismuth Crystal

Bismuth (Bi)

Aura Rose Quartz

SiO2 (Silicon Dioxide with Titanium/Gold coating)

Asphalt (Bituminous Concrete)

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

Faceted glass-like gemstone object

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

Sandstone Concretion

Siliciclastic Concretion

Cubic Zirconia

Cubic Zirconium Dioxide (ZrO2)

Aura Quartz (Titanium-coated Quartz)

Silicon Dioxide (SiO2) with metallic vapor coating

Sandstone Concretion

Clastic Sedimentary Concretion (SiO2 with Iron Oxide)

Titanium Aura Quartz

Titanium-coated Silicon Dioxide (SiO2)

Crackle Agate / Dyed Quartz

SiO2 (Silicon Dioxide)

Green stone disk, possibly serpentine or jade

Indeterminate from the photograph; candidates include serpentine-group minerals (approximately Mg₃Si₂O₅(OH)₄) or jadeite jade (NaAlSi₂O₆).

Agate

Banded Chalcedony (SiO2)

Fossiliferous limestone with colonial coral

Calcite (CaCO₃) limestone containing fossil tabulate or rugose coral colonies

Tumbled milky quartz

Quartz, silicon dioxide (SiO₂)

Libyan Desert Glass

Tektite (high-silica impact glass), SiO2

Zinc Alloy (Silver-plated)

Zinc Alloy Casting (Zn-Al-Mg-Cu)

Asphalt Concrete (Bituminous Concrete)

Bituminous aggregate

Opalite (Synthetic Moonstone/Sea Opal)

Silicon Dioxide (SiO2) glass with metallic inclusions

Chakra Stone (Composite / Man-made Bonded Gemstones)

Composite of Quartz, Lapis Lazuli, Aventurine, Tiger's Eye, and Jasper (SiO2, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, etc.)

Polished black stone egg, probably black obsidian

Obsidian, a natural volcanic glass; composition primarily silica-rich glass (approximately SiO₂), with variable iron and other trace elements

Fancy Jasper (Butterfly Carving)

Silicon Dioxide (SiO2) with iron and manganese inclusions

White quartz pebble or chip

Quartz (silicon dioxide, SiO₂), possibly milky quartz

Unidentified translucent crystal/mineral fragment

Likely quartz (SiO₂), but visual identification is uncertain

Green Aventurine

Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2

Mohave Turquoise (Composite/Stabilized)

Hydrated copper aluminium phosphate (CuAl6(PO4)4(OH)8·4H2O) with stabilizing resin and metallic inclusions

Concrete

Hydrated Portland Cement Aggregate Composite

Goldstone (Brown)

Aventurine Glass (Silicon Dioxide infused with Copper crystals)

Green Quartz / Chrysoprase / Sea Glass

Silicon Dioxide (SiO2)

Slag Glass

Vitreous Silicate Residue

Conglomerate

Conglomerate (Sedimentary rock containing rounded clasts)

Clear quartz crystal

Quartz (silicon dioxide, SiO₂)

Clear quartz fragment

Quartz (silicon dioxide, SiO₂)

Polished black pebble, likely basalt

Basalt, a fine-grained mafic volcanic rock composed mainly of plagioclase feldspar and pyroxene, commonly with olivine