Mineral Composite

Turquoise-colored ring stone (possibly turquoise or imitation)

Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; identity cannot be confirmed from the image

Chrysocolla Cuprite

Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Chrysocolla) and Cu2O (Cuprite)

Tourmalinated Quartz

Quartz (SiO2) with included Tourmaline (complex borosilicate)

Asphalt Pavement (with aggregate)

Asphalt concrete

Carved Sea Turtle Figurine (Aventurine / Quartz / Jasper)

Quartz variety (SiO2) / Polycrystalline Quartz Aggregate

Asphalt (Road Aggregate)

Bituminous conglomerate

Unidentified polished mineral fragment

Likely quartz-bearing stone; exact identification is impossible from the blurred photograph

Nacre (Mother of Pearl)

Nacre (Biogenic Aragonite/Calcite composite, CaCO3)

Decorated turquoise-like bead or mineral pendant

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

Concrete Fragment

Hardened Portland Cement Composite

Asphalt Concrete

Bituminous Concrete / Asphaltic Composite

Asphalt Chunk (Bituminous Concrete)

Aggregated Bitumen / Artificial Breccia

Digital Multimeter (Synthetic Object)

Digital Multimeter (DMM)

Asphalt (Bituminous Concrete)

Bituminous Concrete / Pavement

Jasper and Chalcedony Composite

Silicon Dioxide (SiO2) microcrystalline quartz

Chakra Stone Tower (Composite Multi-Mineral)

Crystalline Silicon Dioxide composite (SiO2) with various inclusions

Onyx (Black) and Mother of Pearl Inlay

Silicon Dioxide (SiO2) for Onyx; Aragonite (CaCO3) for Mother of Pearl

Engineered Quartz

Engineered Stone (primarily SiO2)

Unakite

Altered Granite (Epidotized Granite)

Unakite

Altered Granite (Epidotized Granite)

Jasper and Mudstone Composite

Silicified Sedimentary Rock / Jasperoid Pebble

Seven Chakra Bonded Stone

Bonded composite of Red Jasper, Carnelian, Tiger's Eye, Aventurine, Lapis Lazuli, Amethyst, and Clear Quartz

Tiger Iron

Composite rock (Quartz, Tiger's Eye, Hematite, and Jasper)

Copper Composite Turquoise (Purple and Blue)

Composite Hydrous copper aluminum phosphate with bronze/copper matrix binding

Engineered Quartz

Silicon dioxide composite

River Pebble (Granitic / Quartzite Pebble)

Quartz-Feldspar Aggregate (SiO2 / KAlSi3O8)

Asphalt (Bituminous Concrete)

Composite material (bitumen binder with mineral aggregate)

Engineered Quartz (Quartzite look-alike)

Silicon Dioxide (SiO2) composite

Mohave Turquoise (Composite/Stabilized)

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

Asphalt Concrete (Bituminous Pavement)

Aggregates in Bitumen Matrix

Concrete

Hydrated Portland Cement Aggregate Composite

Blue-green quartz-rich stone, possibly chrysoprase or aventurine

Uncertain; likely quartz (SiO₂) with green coloration from nickel-bearing minerals or inclusions

Magnetic Hematite (Man-made)

Iron Oxide (Fe2O3) with Barium-Strontium Ferrite

Connemara Marble

Calcitic Marble / Serpentinite composite

Opal ring

Common opal, likely synthetic or assembled blue-green opal (hydrated amorphous silica, SiO₂·nH₂O)

Quartz (Engineered Quartz Surface)

Silicon Dioxide (SiO2) based composite

Concrete

Anthropogenic Sedimentary Rock (Hydrated Calcium Silicate)

Polished turquoise sphere with purple matrix/inclusion

Turquoise, hydrated copper–aluminum phosphate; approximate formula CuAl₆(PO₄)₄(OH)₈·4H₂O

Asphalt / Road Aggregate

Bituminous Conglomerate (synthetic)

Sandstone

Sandstone (clastic sedimentary rock composite)

Graphite

Graphite (Native Carbon, C)

Feldspar-Quartz Rock (likely Pegmatite or Granite)

Feldspar-Quartz composite rock (KAlSi3O8 - SiO2)