Rock Identifier

Category

Man Made Material (Anthro Lithic Product)

Browse man made material (anthro lithic product) specimens identified by the Rock Identifier community.

Learn about Man Made Material (Anthro Lithic Product) in the encyclopedia

Opalite

Goldstone

Blue Goldstone

Dunite

Zincite

Mint Obsidian

Crimson Obsidian

Lherzolite

Violet Obsidian

Tangerine Obsidian

Pastel Obsidian

Lilac Obsidian

Opalite (Synthetic Glass (Silica-based)) — gemstone

Opalite

Synthetic Glass (Silica-based)

Titanium Aura Quartz (Titanium bonded Silicon Dioxide (SiO2 + Ti)) — mineral

Titanium Aura Quartz

Titanium bonded Silicon Dioxide (SiO2 + Ti)

Polished white chalcedony or quartz pendant (Microcrystalline quartz (chalcedony), SiO₂; exact identification is uncertain from the image) — gemstone

Polished white chalcedony or quartz pendant

Microcrystalline quartz (chalcedony), SiO₂; exact identification is uncertain from the image

Opalite Egg (Synthetic Glass (Simulated Opal)) — mineral

Opalite Egg

Synthetic Glass (Simulated Opal)

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).) — Man-made material (metal)

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).

Man-made material (metal)

Blue opal heart cabochon (Common opal, hydrated amorphous silica (SiO₂·nH₂O), likely blue-dyed or synthetic opalite) — gemstone

Blue opal heart cabochon

Common opal, hydrated amorphous silica (SiO₂·nH₂O), likely blue-dyed or synthetic opalite

Clear Quartz Sphere (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz Sphere (Rock Crystal)

Silicon Dioxide (SiO2)

Botryoidal chalcedony (likely agate/jasper variety) (Microcrystalline quartz, SiO₂) — mineral

Botryoidal chalcedony (likely agate/jasper variety)

Microcrystalline quartz, SiO₂

Aura Quartz (Titanium Quartz) (Titanium-coated Silicon Dioxide (SiO2 + Ti)) — mineral

Aura Quartz (Titanium Quartz)

Titanium-coated Silicon Dioxide (SiO2 + Ti)

Concretion (Sandstone) (Carbonate-cemented Sandstone Concretion) — sedimentary

Concretion (Sandstone)

Carbonate-cemented Sandstone Concretion

Asphalt (Road Aggregate) (Bituminous Conglomerate / Asphalt Concrete) — Anthropogenic (Man-made)

Asphalt (Road Aggregate)

Bituminous Conglomerate / Asphalt Concrete

Anthropogenic (Man-made)

Red-orange jasper pebble (tentative) (Microcrystalline quartz, SiO₂, colored mainly by iron oxides) — mineral

Red-orange jasper pebble (tentative)

Microcrystalline quartz, SiO₂, colored mainly by iron oxides

Blue Crackle Quartz (Dyed Quarzite) (Silicon Dioxide (SiO2) with artificial dye) — Metamorphic (modified)

Blue Crackle Quartz (Dyed Quarzite)

Silicon Dioxide (SiO2) with artificial dye

Metamorphic (modified)

Dyed Aura Quartz (Silicon Dioxide (SiO2) with metallic coating) — mineral

Dyed Aura Quartz

Silicon Dioxide (SiO2) with metallic coating

Slag (Ferrous Slag (Amorphous calcium-magnesium-aluminum silicates)) — igneous (artificial/anthropogenic)

Slag

Ferrous Slag (Amorphous calcium-magnesium-aluminum silicates)

igneous (artificial/anthropogenic)

Concrete or asphalt-like aggregate surface with a dark fragment (Uncertain; likely artificial concrete containing mixed lithic aggregate, not a natural rock) — sedimentary

Concrete or asphalt-like aggregate surface with a dark fragment

Uncertain; likely artificial concrete containing mixed lithic aggregate, not a natural rock

Sea Glass (White/Clear) (Amorphous Silica (Alkali-Lime-Silica Glass), SiO2 + Na2O + CaO) — Anthropogenic (Man-made product subject to geological processes)

Sea Glass (White/Clear)

Amorphous Silica (Alkali-Lime-Silica Glass), SiO2 + Na2O + CaO

Anthropogenic (Man-made product subject to geological processes)

Opalite (Synthetic Glass (Simulated Opal)) — gemstone

Opalite

Synthetic Glass (Simulated Opal)

Aura Quartz (Titanium or Gold bonded Silicon Dioxide (SiO2)) — mineral

Aura Quartz

Titanium or Gold bonded Silicon Dioxide (SiO2)

Polished black stone, likely obsidian (Obsidian (volcanic glass; mostly silica-rich rhyolitic composition)) — igneous

Polished black stone, likely obsidian

Obsidian (volcanic glass; mostly silica-rich rhyolitic composition)

Blue Obsidian (Cullet Glass) (Silicon Dioxide (Amorphous Glass)) — mineral

Blue Obsidian (Cullet Glass)

Silicon Dioxide (Amorphous Glass)

Cubic Zirconia (Jewelry Setting) (Cubic Zirconia (ZrO2)) — gemstone

Cubic Zirconia (Jewelry Setting)

Cubic Zirconia (ZrO2)

Polished obsidian (Volcanic glass; predominantly rhyolitic SiO₂) — igneous

Polished obsidian

Volcanic glass; predominantly rhyolitic SiO₂

Goldstone (Red) (Aventurine Glass (Cupriferous glass)) — Synthetic Glass (Man-made)

Goldstone (Red)

Aventurine Glass (Cupriferous glass)

Synthetic Glass (Man-made)

Aura Quartz (specifically Titanium Aura Quartz) (Titanium-coated Silicon Dioxide (SiO2 + Ti Coating)) — mineral

Aura Quartz (specifically Titanium Aura Quartz)

Titanium-coated Silicon Dioxide (SiO2 + Ti Coating)

Carborundum (Silicon Carbide (SiC)) — mineral

Carborundum

Silicon Carbide (SiC)

Green sea glass (likely) (Man-made glass, likely soda-lime silicate glass; not a natural mineral or rock) — mineral

Green sea glass (likely)

Man-made glass, likely soda-lime silicate glass; not a natural mineral or rock

Aluminum Slag (Anthropogenic Aluminum (Al)) — mineral

Aluminum Slag

Anthropogenic Aluminum (Al)

Red-orange cabochon, likely carnelian or glass imitation (Carnelian: chalcedony (microcrystalline SiO₂), commonly iron-colored) — gemstone

Red-orange cabochon, likely carnelian or glass imitation

Carnelian: chalcedony (microcrystalline SiO₂), commonly iron-colored

Colorless quartz crystal (likely quartz fragment) (Quartz, silicon dioxide (SiO₂)) — mineral

Colorless quartz crystal (likely quartz fragment)

Quartz, silicon dioxide (SiO₂)

Tumbled Clear Quartz/Rock Crystal (Silicon Dioxide (SiO2)) — mineral

Tumbled Clear Quartz/Rock Crystal

Silicon Dioxide (SiO2)

Opalite (Man-made Glass (Synthetic Opalized Glass)) — mineral

Opalite

Man-made Glass (Synthetic Opalized Glass)

Vesicular basalt (weathered scoria) (Scoriaceous basalt; chiefly plagioclase, clinopyroxene, olivine, and iron-titanium oxides) — igneous

Vesicular basalt (weathered scoria)

Scoriaceous basalt; chiefly plagioclase, clinopyroxene, olivine, and iron-titanium oxides

Titanium Aura Quartz (Titanium-coated Silicon Dioxide (SiO2)) — gemstone

Titanium Aura Quartz

Titanium-coated Silicon Dioxide (SiO2)

Blue Goldstone (Aventurine Glass (Silicon Dioxide infused with Cobalt/Copper)) — Synthetic (Man-made Glass)

Blue Goldstone

Aventurine Glass (Silicon Dioxide infused with Cobalt/Copper)

Synthetic (Man-made Glass)

Cullet (Slag Glass) (Amorphous Silica (Industrial byproduct)) — mineraloid

Cullet (Slag Glass)

Amorphous Silica (Industrial byproduct)

Rainbow Hematite Ring (Iron(III) oxide (Fe2O3) with thin-film coating) — mineral

Rainbow Hematite Ring

Iron(III) oxide (Fe2O3) with thin-film coating

Milky quartz (likely) (Quartz, silicon dioxide (SiO₂)) — mineral

Milky quartz (likely)

Quartz, silicon dioxide (SiO₂)

Blue Goldstone (Man-made glass with cobalt and metal flecks) — man-made glass

Blue Goldstone

Man-made glass with cobalt and metal flecks

Felsic Drill Core (likely Gneiss or Granite)

Felsic Metamorphic Rock (Gneissic profile)

Asphalt aggregate (Human-made bituminous asphalt containing crushed silicate rock aggregate) — sedimentary

Asphalt aggregate

Human-made bituminous asphalt containing crushed silicate rock aggregate

Agate and millefiori glass jewelry (Agate: microcrystalline quartz (SiO₂); millefiori element appears to be man-made glass) — mineral

Agate and millefiori glass jewelry

Agate: microcrystalline quartz (SiO₂); millefiori element appears to be man-made glass