Man Made Material

Blue Goldstone

Auraventurine (Synthetic glass with cobalt and copper inclusions)

Hematite

Iron(III) oxide (Fe2O3)

Concrete with Aggregate

Artificial Conglomerate (Cement and Aggregate)

Opalite

Opalescent Glass (SiO2 + coloring agents)

Asphalt Concrete (Bituminous Pavement)

Aggregates in Bitumen Matrix

Terrazzo (Man-made Composite)

Cementitious or Resin-bound Lithic Composite

Opalite

Man-made Glass (SiO2 + additives)

Concrete Rubble with Aggregate

Hardened Portland Cement Paste with Coarse Aggregate

Beads (likely glass or man-made material)

N/A (artificial material)

Sandstone-based Concrete Fragment

Cementitious Composite with Sedimentary Aggregate

Concrete Fragment

Hardened Portland Cement Composite

Man-made Polished Porcelain Tile (Artificial Geologic Lookalike)

Fused Silicate Ceramic with Alumina (Synthetic Kaolinite derivative)

Concrete

Hydrated Portland Cement Aggregate Composite

Opalite

Man-made Synthetic Glass (Silicon Dioxide with metal additives)

Goldstone

Aventurine glass (Synthetic glass with copper inclusions)

Concrete with Exposed Aggregate

Anthropogenic conglomerate (Concrete)

Concrete Paver (Artificial Cementitious Rock)

Hydrated Portland Cement Aggregate

Concrete / Conglomerate (Man-made)

Artificial Conglomerate (Cementitious Composite)

Concrete / Anthropogenic Conglomerate

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

Concrete with Aggregate

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

Goldstone (Red)

Aventurine Glass (SiO2 + Cu)

Goldstone (Red)

Aventurine Glass (Cupriferous glass)

Concrete

Anthropogenic Sedimentary Rock (Hydrated Calcium Silicate)

Concrete

Anthropogenic Sedimentary Conglomerate (Cement mixture: typically Ca2SiO4, Ca3SiO5, Ca3Al2O6)

Goldstone (Red/Brown)

Aventurine Glass (SiO2 with Copper inclusions)

Artisanal Glass Beads (Simulated Goldstone or Aventurine Glass)

Silicon Dioxide (SiO2) with metallic inclusions

Brick

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

Slag

Metallurgical by-product

Metal Alloy (Likely Pewter or Sterling Silver)

Not a natural geological specimen; composed of refined metals. If pewter, it's a tin-based alloy. If sterling silver, it's 92.5% silver and 7.5% other metals (usually copper).

Opalite (Man-made Glass)

Fused glass (typically made of dolomite and metal opacifiers)

Red Slag Glass (Cullet)

Amorphous Silicon Dioxide (SiO2) with metallic dopants

Goldstone (Synthetic Aventurescence Glass)

Cuprous Aventurescent Glass (Silicon Dioxide with Copper inclusions)

Faceted Glass (Costume Jewelry)

Amorphous Silicon Dioxide with colorants (Glass)

Quartz

Silicon dioxide (SiO₂)

Chipped Glass/Plastic Fragment

Silicon dioxide (SiO2) for glass (amorphous) or various polymer compounds for plastic

Goldstone (Red)

Aventurine Glass

Sea Glass (Frosted Glass)

Amorphous Silica (SiO2) with various additives

Sea Glass (Kelly Green)

Amorphous Silica (Silicon Dioxide with Iron/Chromium additives)

Metal Alloy (Jewelry)

Not a naturally occurring rock or mineral; likely a metal alloy for jewelry. Possible compositions include sterling silver (92.5% silver, 7.5% copper), or other silver/gold alloys.

Sea Glass (Teal/Turquoise)

Amorphous Silica (SiO2) with trace metal oxides

Sea Glass (Turquoise/Aqua)

Amorphous Silica (SiO2) with transition metal dopants

Sea Glass (Frosted Glass)

Amorphous Silica (SiO2) with various metal oxide impurities