Rock Identifier

Category

Anthropogenic Specimen (Man Made)

Browse anthropogenic specimen (man made) specimens identified by the Rock Identifier community.

Learn about Anthropogenic Specimen (Man Made) in the encyclopedia

Opalite

Emerald in Matrix

Emerald in Matrix

Morganite Crystal

Morganite Crystal

Emerald Crystal

Emerald Crystal

Aquamarine Matrix

Aquamarine Matrix

Aquamarine Crystal

Aquamarine Crystal

Mushroom Tourmaline

Mushroom Tourmaline

Map Jasper

Goldstone

Blue Goldstone

Mandarin Garnet

Mandarin Garnet

Andalusite

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

Milky quartz

Quartz (silicon dioxide, SiO₂)

Iron Slag (Iron/Steel Slag (Ferrosilicate Glass)) — industrial byproduct (anthropogenic material)

Iron Slag

Iron/Steel Slag (Ferrosilicate Glass)

industrial byproduct (anthropogenic material)

Terracotta (Man-made ceramic brick fragment) (Baked clay / High-iron ceramic (Silicate-based ceramic)) — Anthropogenic material (Man-made sedimentary mimic)

Terracotta (Man-made ceramic brick fragment)

Baked clay / High-iron ceramic (Silicate-based ceramic)

Anthropogenic material (Man-made sedimentary mimic)

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

Quartz crystal fragment (likely milky quartz)

Quartz, silicon dioxide (SiO₂)

Opalite (Synthetic glass (SiO2 + impurities)) — mineral

Opalite

Synthetic glass (SiO2 + impurities)

Polished blue glassy mineral specimen, likely sodalite or blue aventurine (Most consistent with sodalite (Na₈Al₆Si₆O₂₄Cl₂), though dyed quartzite or blue glass cannot be excluded from the photograph) — mineral

Polished blue glassy mineral specimen, likely sodalite or blue aventurine

Most consistent with sodalite (Na₈Al₆Si₆O₂₄Cl₂), though dyed quartzite or blue glass cannot be excluded from the photograph

Slag Glass (Cullet) (Amorphous Silicon Dioxide (SiO2) with metal oxide colorants) — Anthropogenic (Man-made)

Slag Glass (Cullet)

Amorphous Silicon Dioxide (SiO2) with metal oxide colorants

Anthropogenic (Man-made)

Tumbled milky quartz pebble (Quartz (silicon dioxide, SiO₂), opaque-to-translucent milky variety) — mineral

Tumbled milky quartz pebble

Quartz (silicon dioxide, SiO₂), opaque-to-translucent milky variety

Diamond (Native Carbon (C)) — gemstone

Diamond

Native Carbon (C)

Terrazzo (Synthetic Composite Rock) (Cementitious or Epoxy Resin-bound Aggregates) — Man-made metamorphic-style composite

Terrazzo (Synthetic Composite Rock)

Cementitious or Epoxy Resin-bound Aggregates

Man-made metamorphic-style composite

Blue Goldstone (Aventurine Glass) — man-made glass

Blue Goldstone

Aventurine Glass

Synthetic Costume Accessory (Non-Geological) (Polyester and Acrylic Fiber (Anthropogenic polymer)) — Synthetic / Man-made textile

Synthetic Costume Accessory (Non-Geological)

Polyester and Acrylic Fiber (Anthropogenic polymer)

Synthetic / Man-made textile

Ocean Jasper Mushroom (Orbicular Jasper (Silicon Dioxide, SiO2 mixed with various impurities)) — mineral

Ocean Jasper Mushroom

Orbicular Jasper (Silicon Dioxide, SiO2 mixed with various impurities)

Libyan Desert Glass (Tektite (high-silica impact glass), SiO2) — mineral

Libyan Desert Glass

Tektite (high-silica impact glass), SiO2

Zinc Alloy (Silver-plated) (Zinc Alloy Casting (Zn-Al-Mg-Cu)) — mineral (refined metal)

Zinc Alloy (Silver-plated)

Zinc Alloy Casting (Zn-Al-Mg-Cu)

mineral (refined metal)

Rose Quartz and Cherry Quartz (Dyed Glass/Quartz) (Silicon Dioxide (SiO2) with inclusions/dye) — gemstone

Rose Quartz and Cherry Quartz (Dyed Glass/Quartz)

Silicon Dioxide (SiO2) with inclusions/dye

Tumbled milky quartz (Quartz — silicon dioxide (SiO₂), cryptocrystalline or microcrystalline variety possible) — mineral

Tumbled milky quartz

Quartz — silicon dioxide (SiO₂), cryptocrystalline or microcrystalline variety possible

Opalite (Synthetic glass / Opaque silicious glass) — gemstone

Opalite

Synthetic glass / Opaque silicious glass

Tumbled milky quartz (Quartz, silicon dioxide (SiO₂)) — mineral

Tumbled milky quartz

Quartz, silicon dioxide (SiO₂)

Opalite (Man-made opalescent glass) — gemstone

Opalite

Man-made opalescent glass

Opalite (Man-made opalized glass) — mineral

Opalite

Man-made opalized glass

Goldstone (Aventurine Glass (Man-made)) — mineral

Goldstone

Aventurine Glass (Man-made)

Sea Glass (Man-made silicate glass) — gemstone

Sea Glass

Man-made silicate glass

Slag Glass (Amorphous Silicate (Man-made)) — industrial byproduct

Slag Glass

Amorphous Silicate (Man-made)

industrial byproduct

Pyrite in Quartz (Drill Core) (Silicon Dioxide (SiO2) with Iron Sulfide (FeS2) inclusions) — igneous/metamorphic (hydrothermal)

Pyrite in Quartz (Drill Core)

Silicon Dioxide (SiO2) with Iron Sulfide (FeS2) inclusions

igneous/metamorphic (hydrothermal)

Sea Glass (Man-made vitreous material) — mineral

Sea Glass

Man-made vitreous material

Slag (Anthropogenic Glass/Iron byproduct) (Ferro-silicate Slag) — Anthropogenic (Man-made)

Slag (Anthropogenic Glass/Iron byproduct)

Ferro-silicate Slag

Anthropogenic (Man-made)

White quartz pebble or chip (Quartz (silicon dioxide, SiO₂), possibly milky quartz) — mineral

White quartz pebble or chip

Quartz (silicon dioxide, SiO₂), possibly milky quartz

Clear quartz crystal (Quartz (silicon dioxide, SiO₂)) — mineral

Clear quartz crystal

Quartz (silicon dioxide, SiO₂)

Unidentified translucent crystal/mineral fragment (Likely quartz (SiO₂), but visual identification is uncertain) — mineral

Unidentified translucent crystal/mineral fragment

Likely quartz (SiO₂), but visual identification is uncertain

Opalite (likely man-made glass) (Opalite; amorphous silica glass, not a natural mineral) — gemstone

Opalite (likely man-made glass)

Opalite; amorphous silica glass, not a natural mineral

Polished black pebble, likely basalt (Basalt, a fine-grained mafic volcanic rock composed mainly of plagioclase feldspar and pyroxene, commonly with olivine) — igneous

Polished black pebble, likely basalt

Basalt, a fine-grained mafic volcanic rock composed mainly of plagioclase feldspar and pyroxene, commonly with olivine

Moldavite (Tektite (Impact Glass), ~80% SiO2 + Al2O3) — tektite

Moldavite

Tektite (Impact Glass), ~80% SiO2 + Al2O3

Carborundum (Silicon Carbide) (Silicon carbide (SiC)) — mineral

Carborundum (Silicon Carbide)

Silicon carbide (SiC)

Conglomerate (Conglomerate (Sedimentary rock containing rounded clasts)) — sedimentary

Conglomerate

Conglomerate (Sedimentary rock containing rounded clasts)

Fossiliferous limestone with colonial coral (Calcite (CaCO₃) limestone containing fossil tabulate or rugose coral colonies) — fossil

Fossiliferous limestone with colonial coral

Calcite (CaCO₃) limestone containing fossil tabulate or rugose coral colonies

Bismuth Crystal (Bismuth (Bi)) — mineral

Bismuth Crystal

Bismuth (Bi)

Diamond (or Simulant) (Carbon (C)) — gemstone

Diamond (or Simulant)

Carbon (C)

Likely clear quartz pebble or glassy quartz fragment (Quartz (silicon dioxide, SiO₂)) — mineral

Likely clear quartz pebble or glassy quartz fragment

Quartz (silicon dioxide, SiO₂)

Man-made earbud charging case (Not a rock or mineral) (Acrylonitrile Butadiene Styrene (ABS) Plastic with electronic components) — Synthetic/Man-made object

Man-made earbud charging case (Not a rock or mineral)

Acrylonitrile Butadiene Styrene (ABS) Plastic with electronic components

Synthetic/Man-made object

Aura Quartz (Pink/Rose Aura Quartz) (Silicon Dioxide (SiO2) bonded with Platinum and/or Silver) — mineral

Aura Quartz (Pink/Rose Aura Quartz)

Silicon Dioxide (SiO2) bonded with Platinum and/or Silver

Glass (Amorphous Silicon Dioxide (SiO2)) — mineraloid

Glass

Amorphous Silicon Dioxide (SiO2)