Sea Glass (Teal/Turquoise)
Amorphous Silica (SiO2) with trace metal oxides
Anthropogenic (Man-made material processed by nature)
Category
Anthropogenic (Man Made Material Processed By Nature)
Browse anthropogenic (man made material processed by nature) specimens identified by the Rock Identifier community.
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Sea Glass (Turquoise/Aqua)
Amorphous Silica (SiO2) with transition metal dopants
Anthropogenic (Man-made material processed by nature)
Concrete rubble
Anthropogenic conglomerate
sedimentary
Concrete
Anthropogenic Conglomerate
sedimentary
Smelter Slag
Anthropogenic Silicate Slag
igneous
Aluminum Slag
Anthropogenic Aluminum (Al)
mineral
Asphalt Concrete (Bituminous Conglomerate)
Anthropogenic Bituminous Conglomerate
sedimentary
Slag
Glassy silicate byproduct (anthropogenic material)
industrial byproduct
Concrete Fragment
Artificial Conglomerate (Cement and Aggregate)
sedimentary
Concrete with Exposed Aggregate
Anthropogenic conglomerate (Concrete)
man-made rock (sedimentary analogue)
Concrete / Anthropogenic Conglomerate
Man-made composite material (Portland cement, aggregate, and water)
not a natural rock
Slag (Industrial Glass/Glassy Rock)
Anthropogenic Vitreous Material
igneous
Goldstone (Brown/Gold)
Aventurine Glass (Man-made glass with Copper inclusions)
gemstone
Chert Arrowhead (Projectile Point)
Microcrystalline Quartz (Chert or Flint)
sedimentary
Opalite
Synthetic glass / Opalized glass
gemstone
Sandstone-based Concrete Fragment
Cementitious Composite with Sedimentary Aggregate
sedimentary (man-made/anthropogenic)
Aggregate Concrete
Anthropogenic Conglomerate (Technosol)
sedimentary
Stainless Steel (Polished)
Ferrous Alloy containing Iron (Fe), Chromium (Cr), and Carbon (C)
Mineral equivalent / Metal Alloy
Metal Chain Belt with Square Plates
Not applicable (man-made)
Man-made Object (Metalwork)
Slag
Anthropogenic Vitreous Silica/Iron oxides
mineral-like byproduct
Opalite
Synthetic Glass / Man-made Opal Simulant
gemstone
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial byproduct)
mineraloid
Green Sea Glass
Man-made vitreous material (silica glass)
gemstone
Concrete Fragment
Hardened Portland Cement Composite
Anthropogenic (Man-made material mimicking sedimentary rock)
Sea Glass
Man-made silicate glass
mineral
Concrete fragment with Aggregate
Anthropogenic Concrete with Calcarious and Siliceous Aggregate
sedimentary (anthropogenic/man-made)
Lava Rock with Fabric Impression
Scoria or Basalt with anthropogenic impressions
igneous
Concrete
Anthropogenic Sedimentary Rock (Hydrated Calcium Silicate)
sedimentary (anthropogenic / man-made)
Opalite
Synthetic Opalized Glass
gemstone
Cullet Glass / Slag Glass
Amorphous silica glass
man-made glass / industrial byproduct
Ring with an Orange Inlay
N/A (Man-made object)
Man-made Object (Ring)
Sea Glass
Man-made vitreous material (silica-based glass)
mineral
Blue Slag Glass
Anthropogenic Amorphous Silicon Dioxide
mineral
Concrete
Anthropogenic Sedimentary Conglomerate (Cement mixture: typically Ca2SiO4, Ca3SiO5, Ca3Al2O6)
sedimentary (artificial)
Sea Glass
Man-made silicate glass
mineral
Man-made Ceramic / Clay Figurine
Aluminosilicate Ceramic (Processed Clay)
Synthetic (not a rock or mineral)
Sea Glass
Amorphous Silicon Dioxide (Man-made glass weathered by nature)
mineral
Sea Glass
Man-made silicate glass
mineral
Blue Goldstone
Auraventurine (Synthetic glass with cobalt and copper inclusions)
Synthetic (Man-made Glass)
Asphalt Concrete
Bituminous Concrete (Anthropic Rock)
sedimentary
Concrete / Conglomerate (Man-made)
Artificial Conglomerate (Cementitious Composite)
sedimentary
Iron Slag (Industrial Byproduct)
Anthropogenic Vitrification Product/Ferrous Slag
Mineral-like Industrial Smelting Waste