Rock Identifier

Category

Igneous Or Sedimentary (Anthropogenic Modification)

Browse igneous or sedimentary (anthropogenic modification) specimens identified by the Rock Identifier community.

Slag (Industrial By-product) (Anthropogenic Vitreous Silica/Iron Silicate) — mineral

Slag (Industrial By-product)

Anthropogenic Vitreous Silica/Iron Silicate

Slag (Anthropogenic Vitrification Product / Silicate Slag) — Anthropogenic (Man-made industrial byproduct)

Slag

Anthropogenic Vitrification Product / Silicate Slag

Anthropogenic (Man-made industrial byproduct)

Foliated Metamorphic Rock (likely Gneiss or Schist) (Gneissic Metamorphic Rock) — metamorphic

Foliated Metamorphic Rock (likely Gneiss or Schist)

Gneissic Metamorphic Rock

Gneiss (Gneiss (High-grade Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (High-grade Metamorphic Rock)

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

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Turquoise (CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise

CuAl6(PO4)4(OH)8·4H2O

Botryoidal Chalcedony (Silicon Dioxide (SiO2)) — mineral

Botryoidal Chalcedony

Silicon Dioxide (SiO2)

Fluorite (Fluoride (Calcium Fluoride - CaF2)) — mineral

Fluorite

Fluoride (Calcium Fluoride - CaF2)

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

Gneiss (Gneiss (High-grade Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (High-grade Metamorphic Rock)

Titanium Aura Quartz (Bismuth-coated Druzy) (Silicon Dioxide (SiO2) with Titanium/Metal vapor coating) — mineral

Titanium Aura Quartz (Bismuth-coated Druzy)

Silicon Dioxide (SiO2) with Titanium/Metal vapor coating

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Agate Nodule / Weathered Chert (SiO2 (Silicon Dioxide - Microcrystalline Quartz)) — Sedimentary / Mineral

Agate Nodule / Weathered Chert

SiO2 (Silicon Dioxide - Microcrystalline Quartz)

Sedimentary / Mineral

Gneiss (Gneiss (High-grade Regional Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Gneiss (Banded Gneiss) (Gneiss) — metamorphic

Gneiss (Banded Gneiss)

Gneiss

Gneiss (Gneiss (High-grade metamorphic rock)) — metamorphic

Gneiss

Gneiss (High-grade metamorphic rock)

Gneiss (specifically Banded Gneiss) (Gneiss) — metamorphic

Gneiss (specifically Banded Gneiss)

Gneiss

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Banded Gneiss (Gneiss (high-grade metamorphic silicate rock)) — metamorphic

Banded Gneiss

Gneiss (high-grade metamorphic silicate rock)

Concrete (Anthropogenic Sedimentary Conglomerate (Cement mixture: typically Ca2SiO4, Ca3SiO5, Ca3Al2O6)) — sedimentary (artificial)

Concrete

Anthropogenic Sedimentary Conglomerate (Cement mixture: typically Ca2SiO4, Ca3SiO5, Ca3Al2O6)

sedimentary (artificial)

Banded Gneiss (Gneiss) — metamorphic

Banded Gneiss

Gneiss

Asphalt (Bituminous pavement) (Bituminous concrete / Asphalt) — Sedimentary (Anthropogenic)

Asphalt (Bituminous pavement)

Bituminous concrete / Asphalt

Sedimentary (Anthropogenic)

Green Slag Glass (Amorphous Silicon Dioxide (with metallic impurities)) — Igneous (Anthropogenic)

Green Slag Glass

Amorphous Silicon Dioxide (with metallic impurities)

Igneous (Anthropogenic)

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

Jasper Agate (Chalcedony)

Silicon Dioxide (SiO2)

Slag (Glassy silicate byproduct (anthropogenic material)) — industrial byproduct

Slag

Glassy silicate byproduct (anthropogenic material)

industrial byproduct

Slag (Anthropogenic Vitrophyre (Iron or Smelting Slag)) — Mineral-like byproduct

Slag

Anthropogenic Vitrophyre (Iron or Smelting Slag)

Mineral-like byproduct

Sea Glass (Amorphous Silica (Anthropogenic glass) - SiO2) — mineral

Sea Glass

Amorphous Silica (Anthropogenic glass) - SiO2

Iron Slag (Industrial Byproduct) (Anthropogenic Vitrification Product/Ferrous Slag) — Mineral-like Industrial Smelting Waste

Iron Slag (Industrial Byproduct)

Anthropogenic Vitrification Product/Ferrous Slag

Mineral-like Industrial Smelting Waste

Banded Gneiss (Gneiss (complex metamorphic silicate rock)) — metamorphic

Banded Gneiss

Gneiss (complex metamorphic silicate rock)

Quartz / Quartz Geode fragment (Silicon Dioxide (SiO2)) — mineral

Quartz / Quartz Geode fragment

Silicon Dioxide (SiO2)

Banded Gneiss (Gneiss (High-grade Regional Metamorphic Rock)) — metamorphic

Banded Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Chalcedony (Agate/Quartz variety) (Cryptocrystalline Quartz (SiO2)) — mineral

Chalcedony (Agate/Quartz variety)

Cryptocrystalline Quartz (SiO2)

Chalcedony (Grey/White Agate) (Silicon Dioxide (SiO₂)) — mineral

Chalcedony (Grey/White Agate)

Silicon Dioxide (SiO₂)

Biotite Gneiss (Gneiss (complex mixture including Biotite K(Mg,Fe)3AlSi3O10(F,OH)2 and Quartz/Feldspar)) — metamorphic

Biotite Gneiss

Gneiss (complex mixture including Biotite K(Mg,Fe)3AlSi3O10(F,OH)2 and Quartz/Feldspar)

Gneiss (specifically a water-worn pebble) (Gneiss) — metamorphic

Gneiss (specifically a water-worn pebble)

Gneiss

Gneiss (High-grade metamorphic rock (Gneiss)) — metamorphic

Gneiss

High-grade metamorphic rock (Gneiss)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Gneiss (Metamorphic Rock) (Gneiss) — metamorphic

Gneiss (Metamorphic Rock)

Gneiss

Banded Gneiss (Gneiss (Metamorphic high-grade, predominantly SiO2, Al2O3, K2O, Na2O)) — metamorphic

Banded Gneiss

Gneiss (Metamorphic high-grade, predominantly SiO2, Al2O3, K2O, Na2O)

Gneiss (specifically Micaceous Gneiss) (Gneiss (High-grade Regional Metamorphic Rock)) — metamorphic

Gneiss (specifically Micaceous Gneiss)

Gneiss (High-grade Regional Metamorphic Rock)

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

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Chalcedony (specifically Agate or Moonstone-like Quartz) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (specifically Agate or Moonstone-like Quartz)

Silicon Dioxide (SiO2)