Sea Glass (Teal/Turquoise)
Amorphous Silica (SiO2) with trace metal oxides
Category
Browse anthropogenic (man made material processed by nature) specimens identified by the Rock Identifier community.
Sea Glass (Teal/Turquoise)
Amorphous Silica (SiO2) with trace metal oxides
Sea Glass (Turquoise/Aqua)
Amorphous Silica (SiO2) with transition metal dopants
Slag
Glassy silicate byproduct (anthropogenic material)
Asphalt Concrete (Bituminous Conglomerate)
Anthropogenic Bituminous Conglomerate
Sandstone-based Concrete Fragment
Cementitious Composite with Sedimentary Aggregate
Aluminum Slag
Anthropogenic Aluminum (Al)
Concrete / Anthropogenic Conglomerate
Man-made composite material (Portland cement, aggregate, and water)
Concrete with Exposed Aggregate
Anthropogenic conglomerate (Concrete)
Metal Chain Belt with Square Plates
Not applicable (man-made)
Concrete Fragment
Hardened Portland Cement Composite
Stainless Steel (Polished)
Ferrous Alloy containing Iron (Fe), Chromium (Cr), and Carbon (C)
Blue Goldstone
Auraventurine (Synthetic glass with cobalt and copper inclusions)
Lava Rock with Fabric Impression
Scoria or Basalt with anthropogenic impressions
Ring with an Orange Inlay
N/A (Man-made object)
Concrete / Conglomerate (Man-made)
Artificial Conglomerate (Cementitious Composite)
Exposed Aggregate Concrete (Pea Gravel)
Concrete with Siliceous Alluvial Gravels
Concrete
Anthropogenic Sedimentary Rock (Hydrated Calcium Silicate)
Metal Chain (Likely Steel or a Steel Alloy)
Steel (primarily iron and carbon); specific alloy unknown
Concrete
Anthropogenic Sedimentary Conglomerate (Cement mixture: typically Ca2SiO4, Ca3SiO5, Ca3Al2O6)
Terrazzo (Synthetic Composite Rock)
Cementitious or Epoxy Resin-bound Aggregates
Cullet (Slag Glass)
Amorphous Silica (SiO2) with various metal oxide colorants
Goldstone
Aventurine Glass (Man-made)
Iron Slag (Industrial Byproduct)
Anthropogenic Vitrification Product/Ferrous Slag
Ferro-slag (Leland Blue/Slag Glass)
Anthropogenic Vitreous Silica (Industrial Slag)
Man-made Ceramic / Clay Figurine
Aluminosilicate Ceramic (Processed Clay)
Aluminum Slag
Anthropogenic Aluminum (Al)
Titanium Aura Quartz (Bismuth-coated Druzy)
Silicon Dioxide (SiO2) with Titanium/Metal vapor coating
Note on Image Identification: Textile
N/A (Anthropogenic material)
Goldstone (Red)
Aventurine Glass (Cupriferous glass)
Green Slag
Anthropogenic Silicate Glass
Concrete Rubble with Aggregate
Hardened Portland Cement Paste with Coarse Aggregate
Asphalt (Road Aggregate)
Asphalt concrete / Bituminous mixture
Slag Glass
Anthropogenic Amorphous Silicon Dioxide
Concrete
Hydrated Portland Cement Aggregate Composite
Not a rock, mineral, or geological specimen
Artisanal Glass Beads (Simulated Goldstone or Aventurine Glass)
Silicon Dioxide (SiO2) with metallic inclusions
Asphalt (Bituminous pavement)
Bituminous concrete / Asphalt
Asphalt (Road Aggregate)
Bituminous Conglomerate / Asphalt Concrete
Man-made Synthetic Material (Not a rock or mineral)
Polyester (Polyethylene terephthalate) / Faux Fur
Slag (Industrial Byproduct)
Artificial silicate/iron byproduct
Slag
Anthropogenic glassy silicate
Carborundum (Silicon Carbide)
Silicon Carbide (SiC)