Sandstone Concretion
Sedimentary Clastic Rock (Silicate-rich)
Category
Browse sedimentary (man made conglomerate) specimens identified by the Rock Identifier community.
Sandstone Concretion
Sedimentary Clastic Rock (Silicate-rich)
Sandstone (with Liesegang rings or joints)
Clastic Sedimentary Rock (primarily Quartz with Iron Oxide cement)
Sea Glass
Man-made silicate glass (Amorphous silicon dioxide)
Quartz (Engineered Stone Countertop)
Silicon Dioxide (SiO2) with polymer resins
Ceramic or Polished Stone Heart (Anthropogenic Material)
Glazed Ceramic (Silicon Dioxide based coating on Alumina Silicate body) or Polished Limestone/Marble (Calcium Carbonate, CaCO3)
Chakra Stone (Composite / Man-made Bonded Gemstones)
Composite of Quartz, Lapis Lazuli, Aventurine, Tiger's Eye, and Jasper (SiO2, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, etc.)
Asphalt (Bituminous Pavement)
Bituminous mix (Aggregates with Bitumen binder)
Sea Glass
Man-made silicate glass
Opalite
Man-made opalized glass
Goldstone
Aventurine Glass (Man-made)
Slag Glass
Amorphous Silicate (Man-made)
Ring with an Orange Inlay
N/A (Man-made object)
Sandstone Concretion
Septarian or Carbonate-cemented Sandstone Concretion
Asphalt (Bituminous pavement)
Bituminous concrete / Asphalt
Cobalt Blue Glass / Cullet Glass
Silicon dioxide (Amorphous man-made glass)
Mystic Topaz (Treated Quartz or Topaz)
Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2] with thin-film metallic coating
Opalite
Synthetic Opalite Glass / Opalized Glass
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (SiO2) with metallic oxide impurities
Slag (Industrial Byproduct)
Artificial silicate/iron byproduct
Titanium Coated Kyanite (Aura Kyanite)
Aluminosilicate (Al2SiO5) with a Titanium-Niobium vacuum-deposited coating
Conglomerate
Conglomerate
Boxwork or Septarian Concretion
Septarian nodule / Boxwork weathering
Sea Glass
Man-made vitreous material
Crescent Pebble
Weathered Quartzite or Sandstone Fragment
Chert Concretion
Chert (Microcrystalline Quartz, SiO2)
Titanium-coated Metal Cube (Man-made Fidget Toy)
Titanium-anodized or electroplated alloy (e.g., Ti-coated Zinc or Aluminum)
Transit Token (RTD Denver)
Nickel-plated brass or bronze alloy (Cu-Sn-Zn-Ni)
Magnetic Hematite (Man-made)
Iron Oxide (Fe2O3) with Barium-Strontium Ferrite
Sandstone Anvil / Nutting Stone
Quartzose Sandstone (Sedimentary Rock)
Concrete Rubble with Aggregate
Hardened Portland Cement Paste with Coarse Aggregate
Aura Quartz (Titanium Quartz)
Titanium-coated Silicon Dioxide (SiO2 + Ti)
Opalite
Synthetic Glass (Silica-based)
Costume Jewelry with Synthetic Gemstones
Synthetic Cubic Zirconia and Glass (SiO2 / ZrO2)
Opaline Glass (Opalite)
Synthetic Silicon Dioxide Glass
Titanium Aura Quartz
Titanium bonded Silicon Dioxide (SiO2 + Ti)
Sea Glass
Man-made silicate glass weathering product
Green Obsidian Sphere (man-made glass)
Vitreous Silica with Chromium/Iron additives
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Man-made)
Puddingstone
Conglomerate (Jasper Conglomerate)
Puddingstone (specifically Michigan/Gowganda Puddingstone)
Conglomerate (Jasper Conglomerate)
Conglomerate
Conglomerate
Slag
Metallurgical Slag