Ceramic or Polished Stone Heart (Anthropogenic Material)
Glazed Ceramic (Silicon Dioxide based coating on Alumina Silicate body) or Polished Limestone/Marble (Calcium Carbonate, CaCO3)
Category
Browse anthropogenic sedimentary (man made) specimens identified by the Rock Identifier community.
Ceramic or Polished Stone Heart (Anthropogenic Material)
Glazed Ceramic (Silicon Dioxide based coating on Alumina Silicate body) or Polished Limestone/Marble (Calcium Carbonate, CaCO3)
Iron Slag (Industrial Byproduct)
Anthropogenic Vitrification Product/Ferrous Slag
Ferrochrome Slag
Anthropogenic slag (Fe-Cr alloy waste)
Ferro-slag (Leland Blue/Slag Glass)
Anthropogenic Vitreous Silica (Industrial Slag)
Sea Glass
Amorphous Silicon Dioxide (Man-made glass weathered by nature)
N/A - Non-Geological Item
Asphalt (Road Aggregate)
Asphalt concrete / Bituminous mixture
Sandstone-based Concrete Fragment
Cementitious Composite with Sedimentary Aggregate
Cullet (Slag Glass)
Amorphous Silica (SiO2) with various metal oxide colorants
Concrete Rubble with Aggregate
Hardened Portland Cement Paste with Coarse Aggregate
Blue Slag Glass
Man-made Silicon Dioxide (Amorphous)
Asphalt (Bituminous Concrete)
Bituminous mix containing aggregates and petroleum-based binder (CnH2n+2)
Slag (Industrial Byproduct)
Artificial silicate/iron byproduct
Transit Token (RTD Denver)
Nickel-plated brass or bronze alloy (Cu-Sn-Zn-Ni)
Fired Clay Brick (Anthropic Rock substitute)
Anthropogenic polycrystalline ceramic (predominantly Mullite and Quartz: Al6Si2O13 + SiO2)
Chert (specifically Flint Arrowhead)
Silicon dioxide (SiO2) - Microcrystalline Quartz
Note on Image Identification: Textile
N/A (Anthropogenic material)
Slag Glass / Industrial Slag
Anthropogenic Glass
Asphalt Concrete (Bituminous Pavement)
Aggregates in Bitumen Matrix
Sea Glass
Anthropogenic Silicate Glass
Asphalt (Road Aggregate)
Bituminous Conglomerate / Asphalt Concrete
Sea Glass
Man-made silicate glass
Sea Glass
Man-made silicate glass
Asphalt Chunk (with aggregate)
Bituminous concrete / Anthropogenic conglomerate
Sea Glass
Man-made silicate glass
Opalite
Man-made opalescent glass
Artisanal Glass Beads (Simulated Goldstone or Aventurine Glass)
Silicon Dioxide (SiO2) with metallic inclusions
Metal Chain (Likely Steel or a Steel Alloy)
Steel (primarily iron and carbon); specific alloy unknown
Opalite
Synthetic glass / Opalized glass
Small pebble, likely limestone
Unidentified carbonate pebble, possibly micritic limestone (calcite, CaCO₃)
Chert Arrowhead
Cryptocrystalline Quartz (SiO2)
Chert (Arrowheads)
Microcrystalline Quartz (SiO2)
Chert Arrowhead
Microcrystalline Quartz (SiO2)
Chert (Arrowhead Shard)
Microcrystalline silica (SiO2)
Opalite
Synthesized glass / Silicon dioxide glass
Opalite
Synthetic glass / Simulated opal
Quartz pebble (Quartztite fragment)
Silicon Dioxide (SiO2)
Metal Chain Belt with Square Plates
Not applicable (man-made)
Slag Glass
Vitreous Silicate Residue
Synthetic Resin Charm (Seal Shape)
Polymer Resin with plastic glitter / Polyethylene terephthalate glitters
Sandstone (likely Fossilized Wood or Concrete Simulacrum)
Arenite / Silicified Wood / Anthropogenic Concrete
Slag
Metallurgical by-product