Rock Identifier

Category

Man Made Material, Not A Natural Rock Or Mineral Specimen

Browse man made material, not a natural rock or mineral specimen specimens identified by the Rock Identifier community.

Learn about Man Made Material, Not A Natural Rock Or Mineral Specimen in the encyclopedia

Emerald in Matrix

Emerald in Matrix

Aquamarine Matrix

Aquamarine Matrix

Halite

Dunite

Chalk

Claystone

Carbonatite

Tripolite

Dalmatian Jasper

Dalmatian Jasper

Rock Gypsum

Marl

Calc-Silicate Rock

Calc-Silicate Rock

Slag Glass (Anthropogenic Amorphous Silicon Dioxide) — mineral

Slag Glass

Anthropogenic Amorphous Silicon Dioxide

Polished blue chalcedony (possibly agate) (Microcrystalline quartz, SiO₂; chalcedony, potentially banded agate) — mineral

Polished blue chalcedony (possibly agate)

Microcrystalline quartz, SiO₂; chalcedony, potentially banded agate

Carved labradorite fish (Labradorite, calcium-rich plagioclase feldspar (approximately (Ca,Na)(Al,Si)₄O₈)) — mineral

Carved labradorite fish

Labradorite, calcium-rich plagioclase feldspar (approximately (Ca,Na)(Al,Si)₄O₈)

Goldstone (Aventurine glass) — mineral (man-made glass)

Goldstone

Aventurine glass

mineral (man-made glass)

Ferruginous Conglomerate (or Iron-Rich Concrete/Slag) (Clastic Sedimentary (Silicon Dioxide/Iron Oxide matrix)) — sedimentary

Ferruginous Conglomerate (or Iron-Rich Concrete/Slag)

Clastic Sedimentary (Silicon Dioxide/Iron Oxide matrix)

Asphalt aggregate (crushed stone in bitumen) (Artificial composite; predominantly crushed granite, basalt, limestone, and/or recycled aggregate bound by bitumen) — sedimentary

Asphalt aggregate (crushed stone in bitumen)

Artificial composite; predominantly crushed granite, basalt, limestone, and/or recycled aggregate bound by bitumen

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

Pink Tumbled Quartz (Dyed) (Silicon Dioxide (SiO2)) — mineral

Pink Tumbled Quartz (Dyed)

Silicon Dioxide (SiO2)

Dyed Blue Agate (Dragon Vein Agate) (Silicon Dioxide (SiO2) with artificial cobalt/organic dyes) — mineral

Dyed Blue Agate (Dragon Vein Agate)

Silicon Dioxide (SiO2) with artificial cobalt/organic dyes

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

Opalite

Man-made Glass (Synthetic Opalized Glass)

Goldstone (Brown) (Aventurine Glass (Silicon Dioxide infused with Copper crystals)) — mineraloid (man-made glass)

Goldstone (Brown)

Aventurine Glass (Silicon Dioxide infused with Copper crystals)

mineraloid (man-made glass)

Bouncy Ball (Synthetic Rubber Polymer) (Polybutadiene / Ethylene Vinyl Acetate (EVA)) — Synthetic material (Not a rock or mineral)

Bouncy Ball (Synthetic Rubber Polymer)

Polybutadiene / Ethylene Vinyl Acetate (EVA)

Synthetic material (Not a rock or mineral)

Sandstone (Sedimentary Rock (Quartz Sandstone)) — sedimentary

Sandstone

Sedimentary Rock (Quartz Sandstone)

Artificial Rock Face (Faux Rock) (Glass Fiber Reinforced Concrete (GFRC)) — man-made/construction material

Artificial Rock Face (Faux Rock)

Glass Fiber Reinforced Concrete (GFRC)

man-made/construction material

Diamond (Cut jewelry specimen) (Diamond (pure Carbon, C)) — mineral

Diamond (Cut jewelry specimen)

Diamond (pure Carbon, C)

Goldstone (Brown/Gold variety) (Aventurine Glass (SiO2 with Copper inclusions)) — Synthetic/Man-made glass (often mistaken for a mineral)

Goldstone (Brown/Gold variety)

Aventurine Glass (SiO2 with Copper inclusions)

Synthetic/Man-made glass (often mistaken for a mineral)

Red coral (likely precious coral) (Corallium sp.; calcium-carbonate skeleton, primarily calcite) — gemstone

Red coral (likely precious coral)

Corallium sp.; calcium-carbonate skeleton, primarily calcite

Note on Image Identification: Textile (N/A (Anthropogenic material)) — not a rock

Note on Image Identification: Textile

N/A (Anthropogenic material)

Limonite (Yellow Ochre) (Hydrated Iron Oxide (FeO(OH)·nH2O)) — mineral

Limonite (Yellow Ochre)

Hydrated Iron Oxide (FeO(OH)·nH2O)

Dyed Dragon Vein Agate (Silicon Dioxide (SiO2) with artificial pigment) — mineral

Dyed Dragon Vein Agate

Silicon Dioxide (SiO2) with artificial pigment

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

Carborundum (Silicon Carbide)

Silicon carbide (SiC)

Cullet Glass (Slag Glass) (Amorphous Silicon Dioxide (Industrial Man-made)) — mineraloid

Cullet Glass (Slag Glass)

Amorphous Silicon Dioxide (Industrial Man-made)

Diamond (as set in a gold ring) (Carbon (C)) — mineral

Diamond (as set in a gold ring)

Carbon (C)

Bismuth Crystal (Bismuth (Bi)) — mineral

Bismuth Crystal

Bismuth (Bi)

Goldstone (blue/black aventurine glass) (Man-made aventurine glass; silica glass containing metallic copper or other glittering inclusions) — mineral

Goldstone (blue/black aventurine glass)

Man-made aventurine glass; silica glass containing metallic copper or other glittering inclusions

Transit Token (RTD Denver) (Nickel-plated brass or bronze alloy (Cu-Sn-Zn-Ni)) — not a rock or mineral (anthropogenic material)

Transit Token (RTD Denver)

Nickel-plated brass or bronze alloy (Cu-Sn-Zn-Ni)

not a rock or mineral (anthropogenic material)

Sea Glass (Silicon dioxide (mostly)) — mineral

Sea Glass

Silicon dioxide (mostly)

Sea Glass (Man-made vitreous material (silica-based glass)) — mineral

Sea Glass

Man-made vitreous material (silica-based glass)

Opalite (Synthetic Glass (typically Silica/Magnesium based with metal additives)) — mineral

Opalite

Synthetic Glass (typically Silica/Magnesium based with metal additives)

Goldstone (Avventurina (Cu + SiO2 glass)) — mineral

Goldstone

Avventurina (Cu + SiO2 glass)

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

Pink Quartz / Sea Glass

Silicon Dioxide (SiO2)

Decorative gemstone-chip jewelry (likely turquoise, coral, and assorted beads) (Predominantly turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; other pieces appear to be dyed coral or red stone, and possibly shell/metal components) — gemstone

Decorative gemstone-chip jewelry (likely turquoise, coral, and assorted beads)

Predominantly turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; other pieces appear to be dyed coral or red stone, and possibly shell/metal components

Swirled Agate Bead (Silicon Dioxide (SiO2)) — mineral

Swirled Agate Bead

Silicon Dioxide (SiO2)

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

Obsidian (Blue)

Volcanic Glass (SiO2)

Sandstone Concretion (Siliciclastic Concretion) — sedimentary

Sandstone Concretion

Siliciclastic Concretion

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

White quartz pebble (Quartz (SiO₂), likely milky quartz) — mineral

White quartz pebble

Quartz (SiO₂), likely milky quartz

Concretion with Geode Cavity (Ferruginous Sandstone Concretion with Quartz Center) — sedimentary

Concretion with Geode Cavity

Ferruginous Sandstone Concretion with Quartz Center

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)

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

Opalite (Synthetic Glass, SiO2 base with metallic inclusions) — mineraloid (synthetic)

Opalite

Synthetic Glass, SiO2 base with metallic inclusions

mineraloid (synthetic)

Sea Glass (Amorphous Silicon Dioxide (SiO2)) — mineral

Sea Glass

Amorphous Silicon Dioxide (SiO2)