Cubic Zirconia (Man-made)
Cubic Zirconia (ZrO2) with Enamel and Metal Alloy
mineral
Category
Mineral (Man Made Glass, Not Natural)
Browse mineral (man made glass, not natural) specimens identified by the Rock Identifier community.
Learn about Mineral (Man Made Glass, Not Natural) in the encyclopedia
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Man-made Synthetic Material (Plastic/Composite)
Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)
Non-geological / Synthetic
Moldavite
Tektite (Impact Glass), ~80% SiO2 + Al2O3
tektite
Dyed Crackle Quartz
Silicon Dioxide (SiO2) with synthetic dye
mineral
Clear quartz sphere
Quartz (silicon dioxide, SiO₂)
mineral
Libyan Desert Glass
Tektite (high-silica impact glass), SiO2
mineral
Blue Goldstone
Auraventurine (Synthetic glass with cobalt and copper inclusions)
Synthetic (Man-made Glass)
Terrazzo (Man-made Composite)
Cementitious or Resin-bound Lithic Composite
sedimentary (artificial)
Goldstone
N/A (Synthetic Glass with Copper Inclusions)
Manufactured Glass
Crescent Pebble
Weathered Quartzite or Sandstone Fragment
sedimentary
Goldstone and pink quartz bead strands
Goldstone is aventurescent copper-bearing glass; pink beads are likely rose quartz (SiO₂), though dyed or glass imitations are possible
mineral
Rainbow Hematite (Man-made/Treated)
Tumbled Hematite with Titanium/Anodized coating (Iron(III) oxide, Fe2O3)
mineral
Opalite
Man-made synthetic glass with opalescent effects (SiO2 + metal oxides)
mineraloid
Pyrite in Quartz (Drill Core)
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2) inclusions
igneous/metamorphic (hydrothermal)
Concrete Fragment
Hardened Portland cement and mineral aggregate
sedimentary (anthropogenic)
Slag
Anthropogenic glassy silicate
Mineral-like byproduct
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2
metamorphic
Diamond
Carbon (C)
gemstone
Corundum (Pink Sapphire / Ruby)
Al2O3 (Aluminum Oxide)
mineral
Sandstone Concretion
Limonitic Sandstone Concretion
sedimentary
Concrete with Aggregate
Composite construction material; primary matrix is Calcium Silicate Hydrate (C-S-H)
anthropogenic (human-made) sedimentary-like material
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2AlSi3O10(OH)2)
metamorphic
Chert (Arrowhead/Artifact Fragment)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Green Sea Glass
Man-made silicate glass (weathered)
sedimentary
Chert Concretion
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Man-made Jewelry Charm (Enameled Metal)
Not a natural mineral; composed of base metal alloy (likely zinc or brass) and epoxy resin/enamel.
Synthetic / Manufactured Artifact
Blue Crackle Quartz (Dyed Quarzite)
Silicon Dioxide (SiO2) with artificial dye
Metamorphic (modified)
Carved Stone Turtle
Carved Soapstone and Quartz
mineral
Fluorite (Polished Point/Tower)
Calcium Fluoride (CaF2)
mineral
Stainless Steel (Polished)
Ferrous Alloy containing Iron (Fe), Chromium (Cr), and Carbon (C)
Mineral equivalent / Metal Alloy
Blue Goldstone
Synthetic glass with cobalt and copper inclusions
man-made glass
Slag Glass (Cullet)
Amorphous Silica (man-made), primarily SiO2 with trace metal oxides
Mineraloid / Synthetic Glass
Man-made Slag (Industrial Byproduct)
Anthropogenic Glassy Residue
not a natural rock
Asphalt Concrete (Bituminous Pavement)
Aggregates in Bitumen Matrix
Technogenic / Anthropogenic Pavement Material
Porcelain Tile (Sandstone-look)
Man-made Ceramic (resembling Quartz-rich Sandstone)
sedimentary (imitation)
Sea Glass
Man-made vitreous material (silica-based glass)
mineral
Sea Glass (specifically Frosted White)
Amorphous Silica (substance: Sodium-calcium silicate glass)
Mineraloid (Anthropogenic/Man-made rock)
Blue slag glass or dyed glass-like industrial material
Amorphous silicate glass; likely copper-bearing blue slag, but possibly colored man-made glass
mineral
Hematite Beads
Hematite (Fe2O3)
Mineral
Concretion (Sandstone)
Carbonate-cemented Sandstone Concretion
sedimentary
Felsic Drill Core (likely Gneiss or Granite)
Felsic Metamorphic Rock (Gneissic profile)
metamorphic
Iron Slag (Industrial Byproduct)
Anthropogenic Vitrification Product/Ferrous Slag
Mineral-like Industrial Smelting Waste