Clear quartz sphere
Quartz (silicon dioxide, SiO₂)
mineral
Category
Metamorphic (Man Made)
Browse metamorphic (man made) specimens identified by the Rock Identifier community.
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Citrine Quartz
Citrine (Silicon Dioxide, SiO2)
mineral
Exposed Aggregate Concrete (Pea Gravel)
Concrete with Siliceous Alluvial Gravels
sedimentary (man-made conglomerate)
Chert (Arrowheads)
Microcrystalline Quartz (SiO2)
sedimentary
Concrete Fragment
Hardened Portland cement and mineral aggregate
sedimentary (anthropogenic)
Sea Glass
Man-made silicate glass
gemstone
Opalite
Man-made opalescent glass
gemstone
Opalite
Man-made opalized glass
mineral
Goldstone
Aventurine Glass (Man-made)
mineral
Slag Glass
Amorphous Silicate (Man-made)
industrial byproduct
Ring with an Orange Inlay
N/A (Man-made object)
Man-made Object (Ring)
Pink Tumbled Quartz (Dyed)
Silicon Dioxide (SiO2)
mineral
Cobalt Blue Glass / Cullet Glass
Silicon dioxide (Amorphous man-made glass)
mineral
Green Aventurine
Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Sea Glass
Man-made vitreous material
mineral
Sea Glass
Man-made silicate glass
sedimentary
Opalite
Synthetic Opalite Glass / Opalized Glass
gemstone
Asphalt Concrete
Bituminous conglomerate
sedimentary
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (SiO2) with metallic oxide impurities
mineraloid
Slag (Industrial Byproduct)
Artificial silicate/iron byproduct
Mineral description (Anthropogenic material)
![Mystic Topaz (Treated Quartz or Topaz) (Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2] with thin-film metallic coating) — gemstone](https://media.rock.id/mystic-topaz-treated-quartz-or-topaz-b5749325-4a81-403d-a0ed-452e3335d125-thumbnail.jpg)
Mystic Topaz (Treated Quartz or Topaz)
Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2] with thin-film metallic coating
gemstone
Sandstone Concretion
Limonitic Sandstone Concretion
sedimentary
Asphalt (Road Aggregate)
Bituminous conglomerate
sedimentary
Transit Token (RTD Denver)
Nickel-plated brass or bronze alloy (Cu-Sn-Zn-Ni)
not a rock or mineral (anthropogenic material)
Titanium-coated Metal Cube (Man-made Fidget Toy)
Titanium-anodized or electroplated alloy (e.g., Ti-coated Zinc or Aluminum)
Mineral alternative / Synthetic
Concrete Rubble with Aggregate
Hardened Portland Cement Paste with Coarse Aggregate
Anthropogenic (Man-made)
Concrete
Anthropogenic Conglomerate
sedimentary
Concrete Paver (Artificial Cementitious Rock)
Hydrated Portland Cement Aggregate
Sedimentary (Synthetic)
Asphalt Concrete (Bituminous Conglomerate)
Anthropogenic Bituminous Conglomerate
sedimentary
Crushed Stone (Likely Limestone or Granite)
Calcium Carbonate (CaCO3) for Limestone / Quartz and Feldspar for Granite
sedimentary or igneous
Chert Arrowhead (Projectile Point)
Microcrystalline Quartz (Chert or Flint)
sedimentary
Aura Quartz (Titanium Quartz)
Titanium-coated Silicon Dioxide (SiO2 + Ti)
mineral
Concretion (Sandstone)
Carbonate-cemented Sandstone Concretion
sedimentary
Hematite
Iron(III) oxide (Fe2O3)
mineral
Opalite
Synthetic Glass (Silica-based)
gemstone
Costume Jewelry with Synthetic Gemstones
Synthetic Cubic Zirconia and Glass (SiO2 / ZrO2)
mineral
Aggregate Concrete
Anthropogenic Conglomerate (Technosol)
sedimentary
Asphalt Concrete
Bituminous Concrete
sedimentary (artificial)
Opaline Glass (Opalite)
Synthetic Silicon Dioxide Glass
Mineraloid (Man-made)
Titanium Aura Quartz
Titanium bonded Silicon Dioxide (SiO2 + Ti)
mineral
Pyrite in Quartz (Drill Core)
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2) inclusions
igneous/metamorphic (hydrothermal)
Green Obsidian Sphere (man-made glass)
Vitreous Silica with Chromium/Iron additives
mineralogical simulant