Pet Rock (Man-made Quartzite or Granite Cobble)
Silicon dioxide (SiO2) mixture; commonly composed of Quartz, Feldspar, and Mica
Category
Browse anthropogenic sedimentary (man made) specimens identified by the Rock Identifier community.
Pet Rock (Man-made Quartzite or Granite Cobble)
Silicon dioxide (SiO2) mixture; commonly composed of Quartz, Feldspar, and Mica
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)
Slag
Anthropogenic Vitrification Product / Silicate Slag
Green Obsidian Sphere (man-made glass)
Vitreous Silica with Chromium/Iron additives
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Man-made)
Slag
Metallurgical Slag
Brick fragment (Man-made material)
N/A (Fired clay)
Aura Quartz (specifically Titanium Aura Quartz)
Titanium-coated Silicon Dioxide (SiO2 + Ti Coating)
Crackled Quartz (Blue Dyed)
Silicon Dioxide (SiO2) with anthropogenic dye
Blue Goldstone
Auraventurine (Synthetic glass with cobalt and copper inclusions)
Chert Concretion (with typical hematite/limonite staining)
Sedimentary Concretion (SiO2 with FeO(OH)⋅nH2O)
Pyrite Concretion (Grapestone)
Iron Sulfide (FeS2) Concretion
Sandstone Concretion
Clastic Sedimentary Rock (primarily SiO2 with mineral cement)
Sandstone (with man-made markings)
Arenite (composed primarily of Quartz, SiO2)
Opalite
Synthetic Glass (Simulated Opal)
Synthetic Resin / Plastic Figurine
Synthetic Polymer (Copolymer of Polyethylene or Resin)
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)
Titanium Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
Opalite
Synthetic Opalized Glass
Opalite (Synthetic Moonstone/Opal)
Synthetic Silica Glass
Opalite
Synthetic Glass (Simulated Moonstone/Opal)
Polished brown jasper (likely brecciated or orbicular jasper)
Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and other mineral inclusions
Opalite
Man-made Glass (Synthetic Opalized Glass)
Dyed Agate / Painted Stone
Silicon Dioxide (SiO2) with artificial pigment
Opalite
Synthetic Opalite Glass (Silicon Dioxide)
Man-made Polished Porcelain Tile (Artificial Geologic Lookalike)
Fused Silicate Ceramic with Alumina (Synthetic Kaolinite derivative)
Conglomerate
Conglomerate Rock (Paraconglomerate)
Sandstone Concretion
Clastic sedimentary rock (primarily Quartz SiO2)
Cubic Zirconia (Jewelry Setting)
Zirconium Dioxide (ZrO2)
Diamond
Native Carbon (C)
Opalite Egg
Synthetic Glass (Simulated Opal)
Polymer Clay (Mock Mineral)
Polyvinyl chloride (PVC) with plasticizers and pigment
Opalite
Opalescent Glass (SiO2 + coloring agents)
Opalite
Man-made opalescent glass (SiO2 + metal oxides)
Tumbled milky quartz pebble
Quartz (silicon dioxide, SiO₂), opaque-to-translucent milky variety
Blue Goldstone
Synthetic glass with cobalt and copper inclusions
Cubic Zirconia (Jewelry Setting)
Cubic Zirconia (ZrO2)