Mineral Composite

Unakite

Unakite (Epidotized Granite)

Terrazzo (Synthetic Composite Rock)

Cementitious or Epoxy Resin-bound Aggregates

Turquoise butterfly carving

Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O (carved; possibly stabilized or dyed)

Unakite

Altered Granite (Granitic Metamorphic Rock)

Turquoise cabochon

Turquoise — hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O

Basalt

Basalt

Blue quartzite or blue aventurine glass-like aggregate

Quartzite, predominantly SiO₂ (identification uncertain from image)

Polished Bloodstone (likely dyed agate/jasper)

Cryptocrystalline quartz, SiO₂; commonly chalcedony with iron-oxide inclusions

Iron-Nickel Meteorite (Possible Chondrite or Oxidized Iron)

Siderite (Nickel-Iron) or Chondrite (Si/Fe composite)

Freshwater Pearl

Calcium Carbonate (CaCO3) - Aragonite/Calcite organic composite

Conglomerate

Conglomerate (Clastic Sedimentary Rock)

Jade bangle

Likely nephrite jade (fibrous amphibole, Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂); possibly jadeite (NaAlSi₂O₆)

Unakite

Altered Granite (Epidotized Granite)

Opal (in Jewelry Setting)

Hydrated Silicon Dioxide (SiO2·nH2O)

Magnetic Hematite

Iron(III) oxide (Fe2O3) - Man-magnetized ceramic/barium ferrite composite

Man-made Synthetic Material (Plastic/Composite)

Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)

Polished basalt or basaltic river pebble

Basalt; fine-grained plagioclase–pyroxene rock, possibly containing olivine

Quartzite (or Quartz Slab)

SiO2 (Silicon Dioxide)

Cultured Marble (Synthetic)

Polymer-matrix composite (typically calcium carbonate in polyester resin)

Opal ring

Opal (hydrated amorphous silica, SiO₂·nH₂O)

Brick

Fired clay or Ceramic material (no specific mineralogical scientific name as it's a composite)

Basalt

Basalt

Concrete with Aggregate

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

Asphalt aggregate (crushed stone in bitumen)

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

Conglomerate

Polymictic Conglomerate

Dyed and polished agate cabochon

Microcrystalline quartz (chalcedony), SiO₂; likely colored or composite agate

Concrete / Anthropogenic Conglomerate

Man-made composite material (Portland cement, aggregate, and water)

Cantera Opal (Mexican Fire Opal in Rhyolite Matrix)

Hydrated amorphous silica in rhyolite (SiO2·nH2O in volcanic matrix)

Graphite-rich schist (probable graphite flake)

Graphite (C) in graphitic schist; possibly graphite-bearing phyllite

Granite

Granite (a plutonic igneous rock)

Pink Zebra Jasper

Microcrystalline Quartz (SiO2)

Tiger Iron

Tiger Iron (Hematite, Red Jasper, and Chert/Tiger's Eye composite)

Tiger Iron

Tiger Iron (Hematite, Red Jasper, and Chert/Tiger's Eye composite)

Asphalt Chunk

Asphalt concrete

Polished turquoise cabochon jewelry (likely composite or stabilized turquoise)

Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O

Asphalt

Asphalt concrete (engineered material, not a naturally occurring rock/mineral in this form)

Turquoise-style beaded bracelet

Turquoise, hydrated copper–aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O; possibly dyed or composite beads

Ruby in Zoisite

Anyolite (composite of Corundum Al2O3 and Zoisite Ca2Al3(SiO4)(Si2O7)O(OH))

Ruby in Zoisite

Anyolite (composite of Corundum [Al2O3] and Zoisite [Ca2Al3(SiO4)(Si2O7)O(OH)])

Polished chrysocolla cabochon

Chrysocolla, a hydrated copper silicate (approx. Cu₂H₂Si₂O₅(OH)₄·nH₂O); possibly stabilized or composite material

Basalt

Basalt (extrusive igneous rock)

Beaded mineral/crystal jewelry (likely turquoise and coral accents)

Variable; blue beads may be turquoise (CuAl6(PO4)4(OH)8·4H2O), with possible dyed howlite, glass, or composite materials