Concrete with Aggregate
Composite construction material; primary matrix is Calcium Silicate Hydrate (C-S-H)
Category
Browse anthropogenic (human made) sedimentary like material specimens identified by the Rock Identifier community.
Concrete with Aggregate
Composite construction material; primary matrix is Calcium Silicate Hydrate (C-S-H)
Concrete
Anthropogenic Conglomerate
Concrete rubble
Anthropogenic conglomerate
Painted River Rock
Artificially Coated Sedimentary Rock
Industrial Slag
Anthropogenic Vitreous Slag
Chert (Arrowhead Shard)
Microcrystalline silica (SiO2)
Concrete-like aggregate surface with embedded rock fragments
Anthropogenic concrete or exposed aggregate; not a natural rock specimen
Asphalt Concrete (Bituminous Conglomerate)
Anthropogenic Bituminous Conglomerate
Note on Image Identification: Textile
N/A (Anthropogenic material)
Concrete
Anthropogenic Sedimentary Rock (Hydrated Calcium Silicate)
Concrete / Anthropogenic Conglomerate
Man-made composite material (Portland cement, aggregate, and water)
Aluminum Slag
Anthropogenic Aluminum (Al)
Fired Clay Brick (Anthropic Rock substitute)
Anthropogenic polycrystalline ceramic (predominantly Mullite and Quartz: Al6Si2O13 + SiO2)
Concrete fragment with Aggregate
Anthropogenic Concrete with Calcarious and Siliceous Aggregate
Concrete Fragment
Artificial Conglomerate (Cement and Aggregate)
Chert (Arrowhead Fragment)
Microcrystalline Quartz (SiO2)
Concrete / Conglomerate (Man-made)
Artificial Conglomerate (Cementitious Composite)
Fordite
Anthropogenic paint-rock
Green sea glass (likely)
Anthropogenic glass, not a mineral; composition commonly soda–lime silicate glass
Slag (Industrial Glass/Glassy Rock)
Anthropogenic Vitreous Material
Chert (Arrowhead Preform or Point)
Chert (Microcrystalline Quartz, SiO2)
Chert (often called Flint in archaeological contexts)
Microcrystalline or cryptocrystalline Silica (SiO2)
Chert (Arrowhead Artifact)
Microcrystalline Quartz (SiO2)
Chert Arrowhead
Cryptocrystalline Quartz (SiO2)
Chert / Flint Handaxe
Cryptocrystalline Quartz (SiO2)
Eroded Brick or Pumice-like Scoria
Vesicular Basalt / Scoria (Anthropogenic variant: Eroded Firebrick)
Aggregate Concrete
Anthropogenic Conglomerate (Technosol)
Sandstone (likely Fossilized Wood or Concrete Simulacrum)
Arenite / Silicified Wood / Anthropogenic Concrete
Slag
Glassy silicate byproduct (anthropogenic material)
Concrete
Anthropogenic Sedimentary Conglomerate (Cement mixture: typically Ca2SiO4, Ca3SiO5, Ca3Al2O6)
Lava Rock with Fabric Impression
Scoria or Basalt with anthropogenic impressions
Chert (specifically a Lithic Flake)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Concrete with Exposed Aggregate
Anthropogenic conglomerate (Concrete)
Chert (Yellow Jasper/Flint)
Silicon Dioxide (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (Arrowhead/Projectile Point)
Microcrystalline quartz (SiO2)
Sea Glass
Man-made vitreous material (silica-based glass)
Slag
Metallurgical by-product
Asphalt Concrete
Bituminous Concrete (Anthropic Rock)
Ferruginous Conglomerate (or Iron-Rich Concrete/Slag)
Clastic Sedimentary (Silicon Dioxide/Iron Oxide matrix)
Weathered concrete or cementitious slab (not natural rock)
Artificial calcium-silicate cement composite; likely Portland cement concrete
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial byproduct)