Rock Identifier

Category

Man Made Object (Metalwork)

Browse man made object (metalwork) specimens identified by the Rock Identifier community.

Learn about Man Made Object (Metalwork) in the encyclopedia

Opalite

Map Jasper

Goldstone

Blue Goldstone

Mandarin Garnet

Mandarin Garnet

Andalusite

Zincite

Marl

Coquina

Dunite

Dalmatian Jasper

Dalmatian Jasper

Rock Gypsum

Slag (Metallurgical by-product) — Anthropogenic (Man-made material)

Slag

Metallurgical by-product

Anthropogenic (Man-made material)

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

Moldavite

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

Strawberry Quartz (Silicon Dioxide (SiO2) with Hematite or Goethite inclusions) — mineral

Strawberry Quartz

Silicon Dioxide (SiO2) with Hematite or Goethite inclusions

Opalite (Man-made Synthetic Glass (Silicon Dioxide with metal additives)) — mineral

Opalite

Man-made Synthetic Glass (Silicon Dioxide with metal additives)

Green Slag (Anthropogenic Silicate Glass) — Mineraloid (Industrial byproduct)

Green Slag

Anthropogenic Silicate Glass

Mineraloid (Industrial byproduct)

Opalite (Synthetic Opalite Glass) — mineraloid (man-made)

Opalite

Synthetic Opalite Glass

mineraloid (man-made)

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

Silicon Carbide (Carborundum)

Silicon Carbide (SiC)

Red Sandstone or Brick Fragment (Arenite (if sandstone)) — sedimentary

Red Sandstone or Brick Fragment

Arenite (if sandstone)

Titanium Coated Kyanite (Aura Kyanite) (Aluminosilicate (Al2SiO5) with a Titanium-Niobium vacuum-deposited coating) — metamorphic

Titanium Coated Kyanite (Aura Kyanite)

Aluminosilicate (Al2SiO5) with a Titanium-Niobium vacuum-deposited coating

Citrine Quartz (Citrine (Silicon Dioxide, SiO2)) — mineral

Citrine Quartz

Citrine (Silicon Dioxide, SiO2)

Labradorite (Labradorite ((Ca, Na)(Al, Si)4O8)) — mineral

Labradorite

Labradorite ((Ca, Na)(Al, Si)4O8)

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

Iron Slag (Anthropogenic Iron oxide/Silicate composite) — Mineral-like byproduct (Technogenic)

Iron Slag

Anthropogenic Iron oxide/Silicate composite

Mineral-like byproduct (Technogenic)

Decorative mosaic cross containing mixed rock and glass fragments (Polychrome aggregate; likely quartz, feldspar, marble, granite, and assorted colored glass) — mineral

Decorative mosaic cross containing mixed rock and glass fragments

Polychrome aggregate; likely quartz, feldspar, marble, granite, and assorted colored glass

Blue cabochon gemstone, likely synthetic glass or dyed stone (Indeterminate from image; possible glass, synthetic spinel, sodalite, or lapis lazuli) — gemstone

Blue cabochon gemstone, likely synthetic glass or dyed stone

Indeterminate from image; possible glass, synthetic spinel, sodalite, or lapis lazuli

Bismuth (Bismuth (Bi)) — mineral

Bismuth

Bismuth (Bi)

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

Asphalt (Road Aggregate)

Bituminous Conglomerate / Asphalt Concrete

Anthropogenic (Man-made)

Blue glass-like tumbled specimen (Most likely cobalt-blue slag glass or manufactured glass; not confidently identifiable as a natural mineral from the image) — mineral

Blue glass-like tumbled specimen

Most likely cobalt-blue slag glass or manufactured glass; not confidently identifiable as a natural mineral from the image

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

Milky quartz (rough quartz fragment)

Quartz, silicon dioxide (SiO₂)

Chert Concretion (Chert (Microcrystalline Quartz, SiO2)) — sedimentary

Chert Concretion

Chert (Microcrystalline Quartz, SiO2)

Faceted yellow-brown gemstone ring, possibly citrine (Unidentified faceted gem; citrine is quartz (SiO₂), but the photo is insufficient for a reliable identification) — gemstone

Faceted yellow-brown gemstone ring, possibly citrine

Unidentified faceted gem; citrine is quartz (SiO₂), but the photo is insufficient for a reliable identification

Cubic Zirconia (Diamond Simulant) (Zirconium Dioxide (ZrO2)) — gemstone

Cubic Zirconia (Diamond Simulant)

Zirconium Dioxide (ZrO2)

Opalite (Synthetic Opalised Glass) — mineral

Opalite

Synthetic Opalised Glass

Opalite (Synthetic Silicon Dioxide (SiO2)) — mineral

Opalite

Synthetic Silicon Dioxide (SiO2)

Slag Glass (Anthropogenic Amorphous Silicon Dioxide) — mineral

Slag Glass

Anthropogenic Amorphous Silicon Dioxide

Rainbow Hematite (Titanium Coated) (Iron(III) oxide (Fe2O3) with Titanium/Metal Oxide coating) — mineral

Rainbow Hematite (Titanium Coated)

Iron(III) oxide (Fe2O3) with Titanium/Metal Oxide coating

Likely tumbled or cut quartz/chalcedony fragment (Silicon dioxide (SiO₂), probably microcrystalline quartz or quartz) — mineral

Likely tumbled or cut quartz/chalcedony fragment

Silicon dioxide (SiO₂), probably microcrystalline quartz or quartz

Boxwork or Septarian Concretion (Septarian nodule / Boxwork weathering) — sedimentary

Boxwork or Septarian Concretion

Septarian nodule / Boxwork weathering

Opalite (Man-made Glass) (Fused glass (typically made of dolomite and metal opacifiers)) — Man-made Material / Glass

Opalite (Man-made Glass)

Fused glass (typically made of dolomite and metal opacifiers)

Man-made Material / Glass

Cobalt Glass Slug (Cullet) (Man-made Silicate Glass with Cobalt Oxide (CoO)) — mineraloid

Cobalt Glass Slug (Cullet)

Man-made Silicate Glass with Cobalt Oxide (CoO)

Opalite (Man-made opalescent glass (SiO2 + metal oxides)) — mineral (synthetic)

Opalite

Man-made opalescent glass (SiO2 + metal oxides)

mineral (synthetic)

Goldstone (Brown/Gold) (Aventurine Glass (Man-made glass with Copper inclusions)) — gemstone

Goldstone (Brown/Gold)

Aventurine Glass (Man-made glass with Copper inclusions)

Porcelain Tile (Sandstone-look) (Man-made Ceramic (resembling Quartz-rich Sandstone)) — sedimentary (imitation)

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

Man-made vitreous material (silica-based glass)

Sea Glass (Man-made silicate glass (Amorphous silicon dioxide)) — mineral

Sea Glass

Man-made silicate glass (Amorphous silicon dioxide)

Goldstone (Aventurine Glass (Man-made glass with copper inclusions)) — mineraloid / man-made glass

Goldstone

Aventurine Glass (Man-made glass with copper inclusions)

mineraloid / man-made glass

Tumbled yellow jasper or chalcedony (Microcrystalline quartz, SiO₂; likely iron-oxide-bearing jasper/chalcedony) — mineral

Tumbled yellow jasper or chalcedony

Microcrystalline quartz, SiO₂; likely iron-oxide-bearing jasper/chalcedony

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

Tumbled milky quartz pebble

Quartz (silicon dioxide, SiO₂), likely milky quartz

Cubic Zirconia (Man-made) (Cubic Zirconia (ZrO2) with Enamel and Metal Alloy) — mineral

Cubic Zirconia (Man-made)

Cubic Zirconia (ZrO2) with Enamel and Metal Alloy

Sandstone (with concrete/human-made layer) (Clastic Sedimentary Rock (primarily Quartz/Feldspar grains)) — sedimentary

Sandstone (with concrete/human-made layer)

Clastic Sedimentary Rock (primarily Quartz/Feldspar grains)

Mystic Topaz (Aluminum Silicate Fluoride Hydroxide (Al2SiO4(F,OH)2) with metallic film coating) — mineral

Mystic Topaz

Aluminum Silicate Fluoride Hydroxide (Al2SiO4(F,OH)2) with metallic film coating

Opalite (Synthetic Glass (Hydrated Crystalline Silicon Dioxide simulation)) — mineral

Opalite

Synthetic Glass (Hydrated Crystalline Silicon Dioxide simulation)