Concrete with Aggregate
Artificial Conglomerate (Cement and Aggregate)
sedimentary
Category
Man Made Composite (Lithified Equivalent Of Sedimentary)
Browse man made composite (lithified equivalent of sedimentary) specimens identified by the Rock Identifier community.
Learn about Man Made Composite (Lithified Equivalent Of Sedimentary) in the encyclopedia
View all →
Tumbled Clear Quartz/Rock Crystal
Silicon Dioxide (SiO2)
mineral
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Not a geological specimen
N/A (man-made object)
N/A
Chert (Chalky Flint Node)
Chert (Microcrystalline Quartz, SiO2)
sedimentary
ABS Plastic (Acrylonitrile Butadiene Styrene)
(C8H8)x·(C4H6)y·(C3H3N)z
Synthetic Polymer (Synthetic Material)
Crushed Stone (Likely Limestone or Granite)
Calcium Carbonate (CaCO3) for Limestone / Quartz and Feldspar for Granite
sedimentary or igneous
Stamped concrete made to resemble flagstone
Portland-cement concrete with decorative stone-textured finish
sedimentary
Opalite
Synthetic Glass (Simulated Opal)
gemstone
Gabbro
Gabbro (Mg, Fe)2Si2O6 / (Ca, Na)(Al, Si)4O8
igneous
Nacre (Mother of Pearl)
Nacre (Biogenic Aragonite/Calcite composite, CaCO3)
mineral
Opalite
Synthetic glass (SiO2 + impurities)
mineral
Asphalt Concrete
Bituminous Concrete (Anthropic Rock)
sedimentary
Likely chert (flint) fragment
Microcrystalline quartz, SiO₂
sedimentary
Concrete Paver (Artificial Cementitious Rock)
Hydrated Portland Cement Aggregate
Sedimentary (Synthetic)
Diamond
Native Carbon (C)
gemstone
Engineered Quartz (Quartzite look-alike)
Silicon Dioxide (SiO2) composite
mineral-based composite
Sea Glass
Man-made silicate glass
mineral
Sea Glass
Man-made silicate glass
mineral
Sea Glass
Man-made silicate glass
mineral
Sea Glass
Man-made vitreous material
gemstone
Sea Glass
Man-made vitreous material
mineral
Sea Glass
Man-made silicate glass
mineral
Blue Obsidian (Cullet Glass)
Man-made silicate glass
mineral
Sea Glass
Man-made silicate glass
mineral
Opalite
Man-made opalized glass
mineral
Goldstone
Aventurine Glass (Man-made)
mineral
Sea Glass
Man-made silicate glass
gemstone
Slag Glass
Amorphous Silicate (Man-made)
industrial byproduct
Ring with an Orange Inlay
N/A (Man-made object)
Man-made Object (Ring)
Rose Quartz and Cherry Quartz (Dyed Glass/Quartz)
Silicon Dioxide (SiO2) with inclusions/dye
gemstone
Exposed Aggregate Concrete (Pea Gravel)
Concrete with Siliceous Alluvial Gravels
sedimentary (man-made conglomerate)
Sea Glass
Man-made silicate glass (Amorphous silicon dioxide)
sedimentary
Asphalt Concrete
Bituminous Concrete / Asphaltic Composite
not a natural rock (man-made composite)
Sea Glass
Amorphous silicon dioxide
mineral
Opalite
Synthesized glass / Silicon dioxide
gemstone
Not a rock, mineral, or geological specimen
N/A
Opalite
Synthetic glass / Opaque silicious glass
gemstone
Concrete
Anthropogenic Sedimentary Conglomerate (Cement mixture: typically Ca2SiO4, Ca3SiO5, Ca3Al2O6)
sedimentary (artificial)
Concrete rubble
Anthropogenic conglomerate
sedimentary
Sea Glass
Man-made vitreous material (silica glass)
sedimentary
Sea Glass
Man-made silicate glass weathering product
sedimentary