Ironstone Concretion (Pot Stone)
Siderite or Limonite Concretion (FeCO3 or FeO(OH)·nH2O)
sedimentary
Category
Man Made Rock Like Material
Browse man made rock like material specimens identified by the Rock Identifier community.
Learn about Man Made Rock Like Material in the encyclopedia
View all →
Chert (Chalcedony/Agate variety)
Silicon Dioxide (SiO2)
sedimentary
Goldstone
Aventurine glass (Synthetic glass with copper inclusions)
mineraloid / man-made glass
Dyed Agate / Painted Stone
Silicon Dioxide (SiO2) with artificial pigment
sedimentary (base), then artificial
Green Aventurine
SiO2 (Silicon Dioxide with Fuchsite inclusions)
mineral
Citrine Quartz
Citrine (Silicon Dioxide, SiO2)
mineral
Aura Quartz (Titanium-coated Quartz)
Silicon Dioxide (SiO2) with metallic vapor coating
mineral
Possible weathered basalt or slag fragment
Basalt, chiefly plagioclase and pyroxene; identification is uncertain from the image
igneous
Opalite
Synthetic Opalised Glass
glass
Polished brown jasper (likely brecciated or orbicular jasper)
Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and other mineral inclusions
gemstone
Diamond (or Simulant)
Carbon (C)
gemstone
Bismuth Crystal
Bismuth (Bi)
mineral
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Aura Quartz (Titanium/Rainbow Quartz)
SiO2 (Silicon Dioxide) with metallic coating
mineral
Aura Quartz Geodes (Lab-Altered)
Silicon Dioxide (SiO2) with Metallic Vapor Deposition
mineral
Titanium Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
mineral
Acrylic or Resin (Synthetic Imitation)
Polymethyl Methacrylate (PMMA) or Polyepoxide
Synthetic/Man-made Polymer
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.)
Combined Minerals / Metaphysical stones
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Sandstone
Arenite (SiO2 composition dominant)
sedimentary
Clear quartz sphere
Quartz (silicon dioxide, SiO₂)
mineral
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Slag
Metallurgical Slag
igneous
Blue Goldstone
Goldstone (artificial glass)
Mineral (man-made glass, not natural)
Weathered iron-rich concretion or ironstone nodule
Goethite–hematite limonite concretion (FeO(OH), Fe₂O₃, and hydrated iron oxides)
sedimentary
Chert Nodule
Microcrystalline Quartz (SiO2)
sedimentary
Quartz pebble (Quartztite fragment)
Silicon Dioxide (SiO2)
mineral
Terrazzo (with Marble and Granite fragments)
Cementitious or resinous composite containing Calcium Carbonate (CaCO3) and Silicates
sedimentary (man-made composite)
Sandstone
Arenite
sedimentary
Sea Glass
Amorphous silicon dioxide (man-made glass weathered by nature)
mineral
Opalite
Synthetic Opalite Glass
mineraloid (man-made)
Diamond
Carbon (C)
gemstone
Chert (Arrowhead/Artifact Fragment)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2AlSi3O10(OH)2)
metamorphic
Slag Glass
Anthropogenic Amorphous Silicon Dioxide
mineral
Dyed Imperial Jasper (Sea Sediment Jasper)
Silicon Dioxide (SiO2) - Impure Quartz/Chalcedony
sedimentary
Sandstone
Arenite (with iron oxide cement)
sedimentary
Pyrite Concretion (Grapestone)
Iron Sulfide (FeS2) Concretion
sedimentary
Blue Goldstone
Aventurine Glass
Man-made glass (often grouped with minerals in lapidary)
Moldavite
Tektite (Impact Glass), ~80% SiO2 + Al2O3
tektite
Chert (and Agate/Chalcedony)
Microcrystalline Quartz (SiO2)
sedimentary
Carved Stone Turtle
Carved Soapstone and Quartz
mineral