Rock Identifier

Category

Man Made Material

Browse man made material specimens identified by the Rock Identifier community.

Learn about Man Made Material in the encyclopedia

Opalite

Goldstone

Blue Goldstone

Dunite

Zincite

Mint Obsidian

Crimson Obsidian

Lherzolite

Violet Obsidian

Tangerine Obsidian

Pastel Obsidian

Lilac Obsidian

Crescent Pebble (Weathered Quartzite or Sandstone Fragment) — sedimentary

Crescent Pebble

Weathered Quartzite or Sandstone Fragment

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

Red glassy cabochon, likely synthetic ruby or red glass (Uncertain; possible synthetic corundum (Al₂O₃, chromium-colored) or man-made glass) — gemstone

Red glassy cabochon, likely synthetic ruby or red glass

Uncertain; possible synthetic corundum (Al₂O₃, chromium-colored) or man-made glass

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

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

Boxwork or Septarian Concretion

Septarian nodule / Boxwork weathering

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)

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 silicate glass (Amorphous silicon dioxide)) — mineral

Sea Glass

Man-made silicate glass (Amorphous silicon dioxide)

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

Clear quartz sphere

Quartz (silicon dioxide, SiO₂)

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

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)

Obsidian (Blue) (Volcanic Glass (SiO2)) — igneous

Obsidian (Blue)

Volcanic Glass (SiO2)

Blue Cracked Quartz (Dyed Fire Crackle Quartz) (Silicon Dioxide (SiO2) with synthetic dye) — mineral

Blue Cracked Quartz (Dyed Fire Crackle Quartz)

Silicon Dioxide (SiO2) with synthetic dye

Slag (Metallurgical Slag) — igneous

Slag

Metallurgical Slag

Pink Quartz / Sea Glass (Silicon Dioxide (SiO2)) — mineral

Pink Quartz / Sea Glass

Silicon Dioxide (SiO2)

Sandstone (with man-made markings) (Arenite (composed primarily of Quartz, SiO2)) — sedimentary

Sandstone (with man-made markings)

Arenite (composed primarily of Quartz, SiO2)

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

Clear quartz crystal (likely)

Quartz, silicon dioxide (SiO₂)

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

Tumbled milky quartz pebble

Quartz (silicon dioxide, SiO₂)

Opalite (Synthetic Glass (Simulated Moonstone/Opal)) — gemstone

Opalite

Synthetic Glass (Simulated Moonstone/Opal)

Diamond (or Cubic Zirconia) (Carbon (C) or Zirconium Dioxide (ZrO2)) — mineral

Diamond (or Cubic Zirconia)

Carbon (C) or Zirconium Dioxide (ZrO2)

Rock crystal quartz fragments (Quartz (silicon dioxide, SiO₂)) — mineral

Rock crystal quartz fragments

Quartz (silicon dioxide, SiO₂)

Blue Goldstone (Aventurine Glass) — Man-made glass (often grouped with minerals in lapidary)

Blue Goldstone

Aventurine Glass

Man-made glass (often grouped with minerals in lapidary)

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

Strawberry Quartz

Silicon Dioxide (SiO2) with Hematite/Goethite inclusions

Quartz (likely milky quartz or quartz glass-like fragment) (Quartz, silicon dioxide (SiO₂)) — mineral

Quartz (likely milky quartz or quartz glass-like fragment)

Quartz, silicon dioxide (SiO₂)

Tumbled opalite (likely synthetic glass) (Opalite; typically man-made opalescent soda-lime glass, not a recognized mineral species) — gemstone

Tumbled opalite (likely synthetic glass)

Opalite; typically man-made opalescent soda-lime glass, not a recognized mineral species

Blue goldstone (Man-made aventurine glass containing metallic copper particles; not a natural mineral) — mineral

Blue goldstone

Man-made aventurine glass containing metallic copper particles; not a natural mineral

Likely polished quartz or glass-like mineral cabochon (Probably quartz (SiO₂), though the image cannot exclude man-made glass) — mineral

Likely polished quartz or glass-like mineral cabochon

Probably quartz (SiO₂), though the image cannot exclude man-made glass

Black tumbled stone, possibly obsidian (Obsidian (volcanic glass; predominantly SiO₂), identification uncertain from image) — igneous

Black tumbled stone, possibly obsidian

Obsidian (volcanic glass; predominantly SiO₂), identification uncertain from image

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

Clear quartz crystal (likely)

Quartz, silicon dioxide (SiO₂)

Polished dendritic agate or jasper (Microcrystalline quartz (SiO₂), likely chalcedony with iron/manganese dendrites) — mineral

Polished dendritic agate or jasper

Microcrystalline quartz (SiO₂), likely chalcedony with iron/manganese dendrites

Clear quartz tumbled stone (Quartz (silicon dioxide, SiO₂)) — mineral

Clear quartz tumbled stone

Quartz (silicon dioxide, SiO₂)

Ferrochrome Slag (Anthropogenic slag (Fe-Cr alloy waste)) — industrial byproduct

Ferrochrome Slag

Anthropogenic slag (Fe-Cr alloy waste)

industrial byproduct

Fluorite (Polished Point/Tower) (Calcium Fluoride (CaF2)) — mineral

Fluorite (Polished Point/Tower)

Calcium Fluoride (CaF2)

Possible obsidian or slag glass (Volcanic glass, primarily SiO₂; alternatively industrial iron-rich glassy slag) — igneous

Possible obsidian or slag glass

Volcanic glass, primarily SiO₂; alternatively industrial iron-rich glassy slag

Diamond (in a gold ring) (Diamond (pure carbon, C)) — mineral

Diamond (in a gold ring)

Diamond (pure carbon, C)

Cubic Zirconia (Simulated Diamond) (Cubic Zirconia (ZrO2)) — mineral

Cubic Zirconia (Simulated Diamond)

Cubic Zirconia (ZrO2)