Rock Identifier

Category

Anthropogenic (Man Made Artifact)

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

Learn about Anthropogenic (Man Made Artifact) in the encyclopedia

Opalite

Goldstone

Map Jasper

Blue Goldstone

Mandarin Garnet

Mandarin Garnet

Andalusite

Zincite

Marl

Dunite

Coquina

Dalmatian Jasper

Dalmatian Jasper

Chalk

Chert (Nodule) (Chert (Alpha-Quartz, SiO2)) — sedimentary

Chert (Nodule)

Chert (Alpha-Quartz, SiO2)

Chert (specifically Flint or Common Opal fragment) (Cryptocrystalline Silica (SiO2)) — sedimentary

Chert (specifically Flint or Common Opal fragment)

Cryptocrystalline Silica (SiO2)

Chert (Nodule) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Nodule)

Microcrystalline Quartz (SiO2)

Chert (Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline Quartz (SiO2)

Man-made Glass (Tumbled/Shaped) (Amorphous Silicon Dioxide (SiO2) with metal oxide colorants) — Mineraloid (synthetic)

Man-made Glass (Tumbled/Shaped)

Amorphous Silicon Dioxide (SiO2) with metal oxide colorants

Mineraloid (synthetic)

Man-made Crystal (Lead Glass) (Lead oxide-doped Silica Glass (approx. SiO2 + PbO)) — Mineraloid/Synthetic Material

Man-made Crystal (Lead Glass)

Lead oxide-doped Silica Glass (approx. SiO2 + PbO)

Mineraloid/Synthetic Material

Man-made Dyed Aura Quartz (Silicon Dioxide (SiO2) with metallic coating/dye) — mineral

Man-made Dyed Aura Quartz

Silicon Dioxide (SiO2) with metallic coating/dye

Chert (Quartz Variety) (Chert (Silicon Dioxide, SiO2)) — sedimentary

Chert (Quartz Variety)

Chert (Silicon Dioxide, SiO2)

Chert (often called Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (often called Flint)

Microcrystalline Quartz (SiO2)

Opalite (Man-made synthetic glass with opalescent effects (SiO2 + metal oxides)) — mineraloid

Opalite

Man-made synthetic glass with opalescent effects (SiO2 + metal oxides)

Slag Glass (Cullet) (Amorphous Silica (man-made), primarily SiO2 with trace metal oxides) — Mineraloid / Synthetic Glass

Slag Glass (Cullet)

Amorphous Silica (man-made), primarily SiO2 with trace metal oxides

Mineraloid / Synthetic Glass

Chert (varieties include Flint and Mudstone) (Microcrystalline Silica (SiO2)) — sedimentary

Chert (varieties include Flint and Mudstone)

Microcrystalline Silica (SiO2)

Small dark mineral/rock fragment (Indeterminate; possibly magnetite-bearing basalt or iron-rich slag) — mineral

Small dark mineral/rock fragment

Indeterminate; possibly magnetite-bearing basalt or iron-rich slag

Rainbow Hematite (Man-made/Treated) (Tumbled Hematite with Titanium/Anodized coating (Iron(III) oxide, Fe2O3)) — mineral

Rainbow Hematite (Man-made/Treated)

Tumbled Hematite with Titanium/Anodized coating (Iron(III) oxide, Fe2O3)

Glass / Silicon Dioxide (Man-made) (SiO2 (Amorphous Silicon Dioxide)) — Amorphous Solid

Glass / Silicon Dioxide (Man-made)

SiO2 (Amorphous Silicon Dioxide)

Amorphous Solid

Man-made Blank Ammunition (Brass) (CuZn (Cartridge Brass - roughly 70% Copper, 30% Zinc)) — Anticrystalline / Synthetic Alloy

Man-made Blank Ammunition (Brass)

CuZn (Cartridge Brass - roughly 70% Copper, 30% Zinc)

Anticrystalline / Synthetic Alloy

Chert (Chocolate or Brown Flint) (Chert (SiO2)) — sedimentary

Chert (Chocolate or Brown Flint)

Chert (SiO2)

Chert (often called Flint for darker varieties) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — sedimentary

Chert (often called Flint for darker varieties)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Chert (varieties include Flint and Jasper) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (varieties include Flint and Jasper)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Quartzite Arrowhead (Quartzite (SiO2 silicon dioxide)) — metamorphic

Quartzite Arrowhead

Quartzite (SiO2 silicon dioxide)

Chert / Flint (Silicon Dioxide (SiO₂)) — sedimentary

Chert / Flint

Silicon Dioxide (SiO₂)

Chert (specifically Zebra Chert/Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (specifically Zebra Chert/Flint)

Silicon Dioxide (SiO2)

Chert (Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline Quartz (SiO2)

Goldstone (Red/Brown) (Aventurine Glass (SiO2 with Copper inclusions)) — Mineral (Man-made glass)

Goldstone (Red/Brown)

Aventurine Glass (SiO2 with Copper inclusions)

Mineral (Man-made glass)

Chert (Yellow Jasper) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Yellow Jasper)

Cryptocrystalline Quartz (SiO2)

Flint Arrowhead (Cryptocrystalline quartz (Chert/Flint, SiO2)) — sedimentary

Flint Arrowhead

Cryptocrystalline quartz (Chert/Flint, SiO2)

Green Agate (Silicon dioxide (SiO₂)) — mineral

Green Agate

Silicon dioxide (SiO₂)

Note: Item is not a geological specimen (Guitar Components (Steel, Nickel, Plastic, Wood)) — Synthetic/Consumer Product

Note: Item is not a geological specimen

Guitar Components (Steel, Nickel, Plastic, Wood)

Synthetic/Consumer Product

Note: Item is a Synthetic/Man-made Object (Titanium-coated Stainless Steel (Fe-Cr-Ni-Ti)) — Non-geological

Note: Item is a Synthetic/Man-made Object

Titanium-coated Stainless Steel (Fe-Cr-Ni-Ti)

Chert (variations include Flint/Novaculite) (Chert (formula: SiO2)) — sedimentary

Chert (variations include Flint/Novaculite)

Chert (formula: SiO2)

Chert (Grey-Green Flint) (Microcrystalline silicon dioxide (SiO2)) — sedimentary

Chert (Grey-Green Flint)

Microcrystalline silicon dioxide (SiO2)

Quartzite Lithic Fragment (Possible Arrowhead Tip / Flaked Tool Fragment) (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite Lithic Fragment (Possible Arrowhead Tip / Flaked Tool Fragment)

Metamorphic Quartzite (SiO2)

Chert (Flint) (Chert (SiO2)) — sedimentary

Chert (Flint)

Chert (SiO2)

Chert (within Limestone) (Silicon Dioxide (SiO2)) — sedimentary

Chert (within Limestone)

Silicon Dioxide (SiO2)

Mahogany Obsidian (Volcanic Glass (Amorphous Silicon Dioxide with Hematite inclusions)) — igneous

Mahogany Obsidian

Volcanic Glass (Amorphous Silicon Dioxide with Hematite inclusions)

Chert / Flint Arrowheads and Artifacts (Cryptocrystalline quartz (SiO2)) — sedimentary

Chert / Flint Arrowheads and Artifacts

Cryptocrystalline quartz (SiO2)

Chert (specifically Gray/Blue-Gray Chert) (Chert (SiO2)) — sedimentary

Chert (specifically Gray/Blue-Gray Chert)

Chert (SiO2)

Brick (Fired clay or Ceramic material (no specific mineralogical scientific name as it's a composite)) — Man-made material (constructed)

Brick

Fired clay or Ceramic material (no specific mineralogical scientific name as it's a composite)

Man-made material (constructed)

Chert (and Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (and Flint)

Silicon Dioxide (SiO2)

Man-made Synthetic Material (Not a rock or mineral) (Polyester (Polyethylene terephthalate) / Faux Fur) — Synthetic / Textile

Man-made Synthetic Material (Not a rock or mineral)

Polyester (Polyethylene terephthalate) / Faux Fur

Synthetic / Textile

Man-made Synthetic Material (Costume Faux Fur) (Synthetic Polymer (Polyester/Acrylic)) — not a rock

Man-made Synthetic Material (Costume Faux Fur)

Synthetic Polymer (Polyester/Acrylic)

Blue Sapphire (Synthetic or Man-made Glass Imitation) (Corundum (Al2O3) if natural; Lead-glass or Spinal if synthetic) — mineral

Blue Sapphire (Synthetic or Man-made Glass Imitation)

Corundum (Al2O3) if natural; Lead-glass or Spinal if synthetic