Beads (likely glass or man-made material)
N/A (artificial material)
Category
Browse man made material, not a natural rock or mineral specimen specimens identified by the Rock Identifier community.
Beads (likely glass or man-made material)
N/A (artificial material)
Green glass sphere/marble
Soda-lime glass (primarily SiO2, Na2O, CaO)
Asphalt Concrete (Bituminous Conglomerate)
Anthropogenic Bituminous Conglomerate
Asphalt (Road Aggregate)
Asphalt concrete / Bituminous mixture
Chipped Glass/Plastic Fragment
Silicon dioxide (SiO2) for glass (amorphous) or various polymer compounds for plastic
Not a rock, mineral, or geological specimen
Unidentifiable Rock Fragment
Man-made Synthetic Material (Plastic/Composite)
Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)
Concrete / Anthropogenic Conglomerate
Man-made composite material (Portland cement, aggregate, and water)
Concrete Fragment
Hardened Portland Cement Composite
Man-made Polished Porcelain Tile (Artificial Geologic Lookalike)
Fused Silicate Ceramic with Alumina (Synthetic Kaolinite derivative)
Not a geological specimen
N/A (man-made object)
Asphalt Concrete
Bituminous conglomerate
N/A - Non-Geological Item
Man-made Metal Pin (Non-geological)
Antimony-Lead Alloy or Zinc/Brass Base with Electroplating
Asphalt (Bituminous Concrete)
Bituminous mix containing aggregates and petroleum-based binder (CnH2n+2)
Concrete Paver (Artificial Cementitious Rock)
Hydrated Portland Cement Aggregate
Concrete
Anthropogenic Sedimentary Rock (Hydrated Calcium Silicate)
Concrete / Conglomerate (Man-made)
Artificial Conglomerate (Cementitious Composite)
Slag (Industrial Byproduct)
Artificial silicate/iron byproduct
Ocean Jasper Mushroom
Orbicular Jasper (Silicon Dioxide, SiO2 mixed with various impurities)
Asphalt (Road Aggregate)
Bituminous Conglomerate / Asphalt Concrete
Concrete with Exposed Aggregate
Anthropogenic conglomerate (Concrete)
Citrine Quartz
Citrine (Silicon Dioxide, SiO2)
Exposed Aggregate Concrete (Pea Gravel)
Concrete with Siliceous Alluvial Gravels
Asphalt (Bituminous Pavement)
Bituminous mix (Aggregates with Bitumen binder)
ABS Plastic (Acrylonitrile Butadiene Styrene)
(C8H8)x·(C4H6)y·(C3H3N)z
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Byproduct)
Concrete Rubble with Aggregate
Hardened Portland Cement Paste with Coarse Aggregate
Conglomerate
Conglomerate (clastic sedimentary rock)
Opalite
Man-made Glass (SiO2 + additives)
Lava Rock with Fabric Impression
Scoria or Basalt with anthropogenic impressions
Polymer Clay (Mock Mineral)
Polyvinyl chloride (PVC) with plasticizers and pigment
Metal Alloy (Likely Pewter or Sterling Silver)
Not a natural geological specimen; composed of refined metals. If pewter, it's a tin-based alloy. If sterling silver, it's 92.5% silver and 7.5% other metals (usually copper).
Opalite
Opalescent Glass (SiO2 + coloring agents)
Opalite (a synthetic glass)
Silicon Dioxide (SiO2) with various additives; not a true mineral but a man-made gem simulant
Sandstone-based Concrete Fragment
Cementitious Composite with Sedimentary Aggregate
Ring with an Orange Inlay
N/A (Man-made object)
Opaline Glass (Opalite)
Synthetic Silicon Dioxide Glass
Iron Slag (Industrial Byproduct)
Anthropogenic Vitrification Product/Ferrous Slag
Asphalt Concrete (Bituminous Pavement)
Aggregates in Bitumen Matrix
Synthetic Resin Charm (Seal Shape)
Polymer Resin with plastic glitter / Polyethylene terephthalate glitters