Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Category
Man Made Rock Like Material
Browse man made rock like material specimens identified by the Rock Identifier community.
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Chert
Microcrystalline Quartz (SiO2)
sedimentary
Diorite
Diorite (Intermediate intrusive igneous rock)
igneous
Red Sandstone
Arenite (Iron-rich)
sedimentary
Granite
Plutonic Igneous Rock (composed typically of SiO2, Al2O3, K2O, Na2O, CaO)
igneous
Tektite
Natural impact glass
meteorite
Artisanal Glass Beads (Simulated Goldstone or Aventurine Glass)
Silicon Dioxide (SiO2) with metallic inclusions
man-made material
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone
Arenite
sedimentary
Probable amber fragment
Amber (fossilized plant resin; chiefly amorphous organic resin, commonly dominated by succinite)
gemstone
Aura Quartz
Titanium/Titanium-Gold treated Silicon Dioxide (SiO2)
mineral
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Tree Agate
Chalcedony (SiO2)
gemstone
Chert (varieties include Flint and Jasper)
Silicon Dioxide (SiO2)
sedimentary
Flint
Silicon dioxide (SiO2)
sedimentary
Fulgarite
Fulgurite (Lechatelierite / Vitrified Sand)
igneous
Chalk
Carbonate rock (mainly CaCO3)
sedimentary
Goldstone
Avventurina (Cu + SiO2 glass)
mineral
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Granite
Granite (composed primarily of Quartz, Feldspar, and Mica)
igneous
Chert (varieties: Flint or Jasper)
Silicon dioxide (SiO2) / Microcrystalline Quartz
sedimentary
Hematite Beads
Hematite (Fe2O3)
Mineral
Cullet Glass (sometimes mistaken for Blue Obsidian or Slag)
Amorphous Silicon Dioxide (SiO2) with chemical additives (e.g., Cobalt for blue color)
mineraloid / industrial byproduct
Green Glass (often marketed as 'Obsidian' or 'Green Quartz')
Amorphous Silica (SiO2) with copper or chromium additives
Mineraloid (Man-made)
Asphalt (Bituminous Concrete)
Composite material (bitumen binder with mineral aggregate)
man-made rock (technosol)
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert
Chert (Microcrystalline Quartz)
sedimentary
Granite
Phaneritic Igneous Rock (composed mostly of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert Nodule (Flint)
Chert (Silicon Dioxide, SiO2)
sedimentary
Bauxite
Bauxite (Al(OH)3, AlO(OH))
sedimentary
Greenstone
Metamorphic mafic rock (chlorite-actinolite-epidote schist)
metamorphic
Red Slag Glass (Cullet)
Amorphous Silicon Dioxide (SiO2) with metallic dopants
Antropogenic (Man-made material)
River Pebbles (Chert and Quartzite)
Sedimentary Clastic Rock (Silica-rich)
sedimentary
Diamond
Native Carbon (C)
mineral
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Sandstone
Sandstone (clastic sedimentary rock, predominantly SiO2)
sedimentary
Granite
Intrusive Igneous Rock (Granitic)
igneous
Sandstone
Arenite (primarily SiO2)
sedimentary
Chert (Polished River Pebble)
Chert (SiO2)
sedimentary
Porcelain Tile (Sandstone-look)
Man-made Ceramic (resembling Quartz-rich Sandstone)
sedimentary (imitation)
Chert (Yellow/Tan variety)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary