Concrete Fragment
Artificial Conglomerate (Cement and Aggregate)
Category
Browse man made specimens identified by the Rock Identifier community.
Concrete Fragment
Artificial Conglomerate (Cement and Aggregate)
Chert (Arrowheads)
Microcrystalline Quartz (SiO2)
Black Obsidian
Amorphous volcanic glass (SiO2 + impurities)
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Man-made)
Opalite
Man-made Glass (Synthetic Opalized Glass)
Stainless Steel (Polished)
Ferrous Alloy containing Iron (Fe), Chromium (Cr), and Carbon (C)
Asphalt Concrete
Bituminous conglomerate
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (SiO2) with metallic oxide impurities
Slag (Industrial Byproduct)
Artificial silicate/iron byproduct
Concrete Fragment
Hardened Portland cement and mineral aggregate
Opalite
Man-made Glass (Synthetic Opalized Glass)
Concrete Paver (Artificial Cementitious Rock)
Hydrated Portland Cement Aggregate
Unidentifiable Rock Fragment
Asphalt Concrete (Bituminous Conglomerate)
Anthropogenic Bituminous Conglomerate
Goldstone
Avventurina (Man-made Glass with Copper inclusions)
Opalite
Man-made glass (traditionally simulated Opal)
Exposed Aggregate Concrete (Pea Gravel)
Concrete with Siliceous Alluvial Gravels
Hematite
Iron(III) oxide (Fe2O3)
Asphalt (Road Aggregate)
Bituminous conglomerate
Opalite
Synthetic Glass (Simulated Opal)
Asphalt / Road Aggregate
Bituminous Conglomerate (synthetic)
Synthetic Resin / Plastic Figurine
Synthetic Polymer (Copolymer of Polyethylene or Resin)
Asphalt (Road Aggregate)
Asphalt concrete / Bituminous mixture
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Byproduct)
Aura Quartz
Titanium or Gold bonded Silicon Dioxide (SiO2)
Bouncy Ball (Synthetic Rubber Polymer)
Polybutadiene / Ethylene Vinyl Acetate (EVA)
Mystic Topaz (Treated Quartz or Topaz)
Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2] with thin-film metallic coating
Sandstone Concretion
Limonitic Sandstone Concretion
Terrazzo (Man-made Composite)
Cementitious or Resin-bound Lithic Composite
Blue Apatite
Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)
Concrete / Conglomerate (Man-made)
Artificial Conglomerate (Cementitious Composite)
Opalite
Synthetic Glass (Silica-based)
Costume Jewelry with Synthetic Gemstones
Synthetic Cubic Zirconia and Glass (SiO2 / ZrO2)
Aggregate Concrete
Anthropogenic Conglomerate (Technosol)
Asphalt Concrete
Bituminous Concrete
Opaline Glass (Opalite)
Synthetic Silicon Dioxide Glass
Titanium Aura Quartz
Titanium bonded Silicon Dioxide (SiO2 + Ti)
Rainbow Hematite Ring
Iron(III) oxide (Fe2O3) with thin-film coating
Polymer Clay (Mock Mineral)
Polyvinyl chloride (PVC) with plasticizers and pigment
Concrete with Aggregate
Artificial Conglomerate (Cement and Aggregate)
Opalite
Opalescent Glass (SiO2 + coloring agents)
Aura Quartz (Titanium Quartz)
Titanium-coated Silicon Dioxide (SiO2 + Ti)