Rock Identifier

Category

Industrial By Product

Browse industrial by product specimens identified by the Rock Identifier community.

Learn about Industrial By Product in the encyclopedia

Adirondack Garnet

Adirondack Garnet

Brazilian Agate

Brazilian Agate

Almandine Garnet

Almandine Garnet

Tripolite

Diatomaceous Earth

Vanadium Tourmaline

Vanadium Tourmaline

Cat's Eye Obsidian

Seam Agate

Perthite

Orange Tourmaline

Orange Tourmaline

Pink Agate

Purple Agate

Obsidian (Volcanic Glass (SiO2)) — igneous

Obsidian

Volcanic Glass (SiO2)

Ferrochrome Slag (Calcium-Aluminium-Magnesium Silicate Slag) — industrial byproduct

Ferrochrome Slag

Calcium-Aluminium-Magnesium Silicate Slag

industrial byproduct

Silicon (Industrial Grade) (Elemental Silicon (Si)) — mineral

Silicon (Industrial Grade)

Elemental Silicon (Si)

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

Cullet Glass (Slag)

Amorphous Silicon Dioxide (Man-made)

Coal (Carbonaceous sedimentary rock / Lignite to Bituminous coal) — sedimentary

Coal

Carbonaceous sedimentary rock / Lignite to Bituminous coal

Coal (Biogenic sedimentary rock (Carbon)) — sedimentary

Coal

Biogenic sedimentary rock (Carbon)

Agate (Silicon Dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon Dioxide (Chalcedony), SiO2

Quartz (Iron-stained) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Diamond (or Diamond Simulant) (Carbon (C) if diamond, various if simulant (e.g., Cubic Zirconia ZrO2)) — gemstone

Diamond (or Diamond Simulant)

Carbon (C) if diamond, various if simulant (e.g., Cubic Zirconia ZrO2)

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

Coal (Bituminous coal (Complex organic sedimentary rock)) — sedimentary

Coal

Bituminous coal (Complex organic sedimentary rock)

Quartz Sand Gravel (Silicon Dioxide (SiO2)) — sedimentary

Quartz Sand Gravel

Silicon Dioxide (SiO2)

N/A - Image is non-geological (Acrylonitrile Butadiene Styrene (ABS) or Polypropylene (PP)) — Synthetic material (Plastic/Polymer)

N/A - Image is non-geological

Acrylonitrile Butadiene Styrene (ABS) or Polypropylene (PP)

Synthetic material (Plastic/Polymer)

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

Opalite (Synthetic Moonstone/Opal) (Synthetic Silica Glass) — mineraloid (synthetic)

Opalite (Synthetic Moonstone/Opal)

Synthetic Silica Glass

mineraloid (synthetic)

Rough Diamond (Diamond (C)) — mineral

Rough Diamond

Diamond (C)

Tumbled White Quartz (Silicon Dioxide (SiO2)) — mineral

Tumbled White Quartz

Silicon Dioxide (SiO2)

Gravel and Sediment Sample (Mixed clastic sediment) — sedimentary

Gravel and Sediment Sample

Mixed clastic sediment

Diamond (or Lab-Grown Cubic Zirconia) (Carbon (C)) — mineral

Diamond (or Lab-Grown Cubic Zirconia)

Carbon (C)

Silver Nugget (Native Silver (Ag)) — mineral

Silver Nugget

Native Silver (Ag)

Coal (Combustible sedimentary rock) — sedimentary

Coal

Combustible sedimentary rock

Agate (Silicon Dioxide (Chalcedony), SiO2) — gemstone

Agate

Silicon Dioxide (Chalcedony), SiO2

Diamond (C) — gemstone

Diamond

C

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

Chert / Jasper

Silicon Dioxide (SiO2)

Faceted Clear Gemstone (Likely Quartz or Cubic Zirconia) (Silicon Dioxide (SiO2) or Zirconium Dioxide (ZrO2)) — gemstone

Faceted Clear Gemstone (Likely Quartz or Cubic Zirconia)

Silicon Dioxide (SiO2) or Zirconium Dioxide (ZrO2)

Diamond (or Diamond Simulant) (Carbon (C) or Zirconium dioxide (ZrO2) for CZ) — gemstone

Diamond (or Diamond Simulant)

Carbon (C) or Zirconium dioxide (ZrO2) for CZ

Diamond (or Simulant) (Carbon (C) or Cubic Zirconia (ZrO2)) — gemstone

Diamond (or Simulant)

Carbon (C) or Cubic Zirconia (ZrO2)

River Pebble (Quartzite/Chert) (Quartzite with inclusions (SiO2)) — metamorphic

River Pebble (Quartzite/Chert)

Quartzite with inclusions (SiO2)

Quartz (Gravel Fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz (Gravel Fragment)

Silicon Dioxide (SiO2)

Bicolor Quartz (Milk Quartz with Slag or Dark Inclusions) (Silicon Dioxide (SiO2) with impurities) — mineral

Bicolor Quartz (Milk Quartz with Slag or Dark Inclusions)

Silicon Dioxide (SiO2) with impurities

Synthetic Convention Badge (Plastic/PVC) (Polyvinyl Chloride (PVC) / Polycarbonate) — mineraloid (synthetic)

Synthetic Convention Badge (Plastic/PVC)

Polyvinyl Chloride (PVC) / Polycarbonate

mineraloid (synthetic)

Cupronickel Coin (Copper-Nickel Alloy (typically 75% Cu, 25% Ni)) — anthropic metallic specimen

Cupronickel Coin

Copper-Nickel Alloy (typically 75% Cu, 25% Ni)

anthropic metallic specimen

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

Chert Nodule (Flint)

Microcrystalline Quartz (SiO2)

Diamond (likely facet or crystal shard) (Diamond (C)) — mineral

Diamond (likely facet or crystal shard)

Diamond (C)

Anthracite Coal (Anthracite) — sedimentary

Anthracite Coal

Anthracite

Ferrochrome Slag (Anthropogenic silicate/oxide glass (Complex silicate matrix with Cr-Fe-Si inclusions)) — Industrial byproduct (often confused with igneous rocks or meteorites)

Ferrochrome Slag

Anthropogenic silicate/oxide glass (Complex silicate matrix with Cr-Fe-Si inclusions)

Industrial byproduct (often confused with igneous rocks or meteorites)

Red Garnet (Almandine Garnet (Fe3Al2(SiO4)3)) — mineral

Red Garnet

Almandine Garnet (Fe3Al2(SiO4)3)

Opalite Egg (Synthetic Glass (Simulated Opal)) — mineral

Opalite Egg

Synthetic Glass (Simulated Opal)

Rounded pale-green pebble, likely serpentinite or altered basalt (Probable serpentinite (serpentine-group minerals) or weathered mafic rock; exact identification requires testing) — igneous

Rounded pale-green pebble, likely serpentinite or altered basalt

Probable serpentinite (serpentine-group minerals) or weathered mafic rock; exact identification requires testing

Man-made Slag (Industrial Byproduct) (Anthropogenic Glassy Residue) — not a natural rock

Man-made Slag (Industrial Byproduct)

Anthropogenic Glassy Residue

not a natural rock

Ironstone (Limonitic Shale) (Ferruginous Siltstone / Goethite-rich Sedimentary Rock) — sedimentary

Ironstone (Limonitic Shale)

Ferruginous Siltstone / Goethite-rich Sedimentary Rock

Kaolin (China Clay) (Kaolinite [Al2Si2O5(OH)4]) — sedimentary

Kaolin (China Clay)

Kaolinite [Al2Si2O5(OH)4]