Cullet Glass / Slag Glass
Amorphous silica glass
Category
Browse man made composite (lithified equivalent of sedimentary) specimens identified by the Rock Identifier community.
Cullet Glass / Slag Glass
Amorphous silica glass
One Pound Coin (UK)
Nickel-Brass Alloy (Cu-Zn-Ni)
Opalite
Man-made opalescent glass
Unidentifiable Rock Fragment
Asphalt Concrete
Bituminous conglomerate
Concrete fragment with Aggregate
Anthropogenic Concrete with Calcarious and Siliceous Aggregate
Sandstone Concretion
Limonitic Sandstone Concretion
Gabbro
Gabbro (Mg, Fe)2Si2O6 / (Ca, Na)(Al, Si)4O8
Sea Glass
Man-made silicate glass
Concrete
Anthropogenic Conglomerate
Sandstone (likely Fossilized Wood or Concrete Simulacrum)
Arenite / Silicified Wood / Anthropogenic Concrete
Porcelain (Stoneware Ceramic)
Mullite / Silica-glass composite (Al6Si2O13)
Asphalt Concrete (Bituminous Conglomerate)
Anthropogenic Bituminous Conglomerate
Chert Arrowhead (Projectile Point)
Microcrystalline Quartz (Chert or Flint)
Concrete Fragment
Hardened Portland cement and mineral aggregate
Aggregate Concrete
Anthropogenic Conglomerate (Technosol)
Concretion (Sandstone)
Carbonate-cemented Sandstone Concretion
Sandstone (with potential Arkose/Lithic characteristics)
Arenite (Sedimentary rock composed of sand-sized grains)
Opalite
Synthetic Glass (Amorphized Silicon Dioxide)
Opalite
Synthetic glass / Opalized glass
Diamond (or Simulant)
Carbon (C) or relevant simulant formula (e.g., ZrO2 for Cubic Zirconia)
Basalt
Basalt (Mafic volcanic rock)
Chert (Chalky Flint Node)
Chert (Microcrystalline Quartz, SiO2)
ABS Plastic (Acrylonitrile Butadiene Styrene)
(C8H8)x·(C4H6)y·(C3H3N)z
Nacre (Mother of Pearl)
Nacre (Biogenic Aragonite/Calcite composite, CaCO3)
Metal Chain Belt with Square Plates
Not applicable (man-made)
Rainbow Hematite Ring
Iron(III) oxide (Fe2O3) with thin-film coating
Concrete with Aggregate
Artificial Conglomerate (Cement and Aggregate)
Asphalt Concrete
Bituminous Concrete (Anthropic Rock)
Diamond
Native Carbon (C)
Seven Chakra Bonded Stone
Bonded composite of Red Jasper, Carnelian, Tiger's Eye, Aventurine, Lapis Lazuli, Amethyst, and Clear Quartz
Conglomerate
Conglomerate (clastic sedimentary rock)
Tumbled Clear Quartz/Rock Crystal
Silicon Dioxide (SiO2)
Quartz (Engineered Quartz Surface)
Silicon Dioxide (SiO2) based composite
Concrete rubble
Anthropogenic conglomerate
Exposed Aggregate Concrete (Pea Gravel)
Concrete with Siliceous Alluvial Gravels
Opalite
Synthetic Glass (Simulated Opal)
Not a geological specimen
N/A (man-made object)
Rose Quartz and Cherry Quartz (Dyed Glass/Quartz)
Silicon Dioxide (SiO2) with inclusions/dye
Fossilized Coral (Coquina/Limestone)
Cnidaria Anthozoa (Fossilized)
Opalite
Synthetic glass / Opaque silicious glass
Not a rock, mineral, or geological specimen