Man Made Metamorphic Style Composite

Concrete with Aggregate

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

Terrazzo (with Marble and Granite fragments)

Cementitious or resinous composite containing Calcium Carbonate (CaCO3) and Silicates

Quartz (Engineered Stone Countertop)

Silicon Dioxide (SiO2) with polymer resins

Opalite

Synthetic glass / Vitreous silica

Copper Composite Turquoise (Purple and Blue)

Composite Hydrous copper aluminum phosphate with bronze/copper matrix binding

Asphalt (Bituminous Concrete)

Bituminous Concrete / Pavement

Jade-and-cabochon fruit cocktail ring

Likely nephrite or jadeite (jade) leaves with orange/cream chalcedony or other cabochons; identification from the image is uncertain

Porcelain (White Ceramic)

Mullite-bearing Vitrified Ceramic (Major phases: Mullite Al6Si2O13, Glassy Silica SiO2)

Opalite

Synthetic glass / Opalized glass

Unidentifiable Rock Fragment

Opalite

Synthesized glass / Silicon dioxide glass

Opalite

Synthetic glass / Simulated opal

Turquoise ring (likely stabilized or imitation turquoise)

Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; exact material is uncertain from the image

Pyrite

Iron Sulfide (FeS2)

Metal Chain Belt with Square Plates

Not applicable (man-made)

Green-and-white terrazzo (likely serpentine/marble aggregate)

Composite decorative stone; probable serpentinite (Mg₃Si₂O₅(OH)₄) with white calcite marble fragments in cementitious matrix

Synthetic Resin Charm (Seal Shape)

Polymer Resin with plastic glitter / Polyethylene terephthalate glitters

Rainbow Hematite Ring

Iron(III) oxide (Fe2O3) with thin-film coating

Blue goldstone (man-made glass)

Copper-bearing aventurine glass; synthetic silicate glass

Tumbled Clear Quartz/Rock Crystal

Silicon Dioxide (SiO2)

Asphalt Chunk

Asphalt concrete

Sea Glass

Amorphous Silicon Dioxide (SiO2)

Cullet Glass / Slag Glass

Amorphous silica glass

One Pound Coin (UK)

Nickel-Brass Alloy (Cu-Zn-Ni)

Opalite

Synthetic glass / Opaque silicious glass

Milky quartz (likely)

Quartz, silicon dioxide (SiO₂)

Blue cabochon gemstone, likely synthetic glass or dyed stone

Indeterminate from image; possible glass, synthetic spinel, sodalite, or lapis lazuli

Opalite

Synthetic glass / Opalized glass

Diamond (or Simulant)

Carbon (C) or relevant simulant formula (e.g., ZrO2 for Cubic Zirconia)

Felsic Drill Core (likely Gneiss or Granite)

Felsic Metamorphic Rock (Gneissic profile)

Brick

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

Quartz (Engineered Quartz Surface)

Silicon Dioxide (SiO2) based composite

Green Aventurine

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

Polished blue glassy mineral specimen, likely sodalite or blue aventurine

Most consistent with sodalite (Na₈Al₆Si₆O₂₄Cl₂), though dyed quartzite or blue glass cannot be excluded from the photograph

Milky quartz

Quartz (silicon dioxide, SiO₂)

Tumbled milky quartz

Quartz (SiO₂), cryptocrystalline-to-massive variety

Not a geological specimen

N/A (man-made object)

ABS Plastic (Acrylonitrile Butadiene Styrene)

(C8H8)x·(C4H6)y·(C3H3N)z

Green Aventurine

SiO2 (Silicon Dioxide with Fuchsite inclusions)

Tumbled milky quartz

Quartz — silicon dioxide (SiO₂), cryptocrystalline or microcrystalline variety possible

White pebble, likely quartz or calcite

Indeterminate from image; possible microcrystalline quartz (SiO₂) or calcite (CaCO₃)

Tumbled milky quartz pebble

Quartz (silicon dioxide, SiO₂), opaque-to-translucent milky variety