Rock Identifier

Category

Mineral Like Byproduct (Technogenic)

Browse mineral like byproduct (technogenic) specimens identified by the Rock Identifier community.

Learn about Mineral Like Byproduct (Technogenic) in the encyclopedia

Blue Line Jasper

Lime Green Tourmaline

Lime Green Tourmaline

Glauconite

Hutcheonite

Halite

Sperrylite

Baddeleyite

Anatase

Brookite

Talc

Euxenite

Eltyubyuite

Quartz Geode (Crystalline Silicon Dioxide (SiO2) in sedimentary matrix) — sedimentary

Quartz Geode

Crystalline Silicon Dioxide (SiO2) in sedimentary matrix

Schist (Schist) — Metamorphic

Schist

Schist

Limonite Geode (Hydrated Iron Oxide Hydroxide, FeO(OH)·nH2O) — mineral

Limonite Geode

Hydrated Iron Oxide Hydroxide, FeO(OH)·nH2O

Talc (Mg3Si4O10(OH)2) — mineral

Talc

Mg3Si4O10(OH)2

Obsidian (Obsidian (volcanic glass; primarily SiO2)) — igneous

Obsidian

Obsidian (volcanic glass; primarily SiO2)

Echinoid Fossil (Sea Urchin Fossil) (Echinoidea) — fossil

Echinoid Fossil (Sea Urchin Fossil)

Echinoidea

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

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Black Obsidian (Obsidian (Volcanic Glass, SiO2+)) — igneous

Black Obsidian

Obsidian (Volcanic Glass, SiO2+)

Polished agate/jasper pebble (Microcrystalline quartz (chalcedony), SiO₂, with likely iron-oxide and clay inclusions) — mineral

Polished agate/jasper pebble

Microcrystalline quartz (chalcedony), SiO₂, with likely iron-oxide and clay inclusions

Fossil Shark Tooth (Chondrichthyes (class)) — fossil

Fossil Shark Tooth

Chondrichthyes (class)

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Epidotite (Unakite-related Epidote) (Epidote (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH))) — metamorphic

Epidotite (Unakite-related Epidote)

Epidote (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH))

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Black Tourmaline (Schorl (NaFe2+3Al6(BO3)3Si6O18(OH)4)) — mineral

Black Tourmaline

Schorl (NaFe2+3Al6(BO3)3Si6O18(OH)4)

Pink Garnet (likely Almandine or Rhodolite) (Garnet Group (Fe3Al2(SiO4)3 to Mg3Al2(SiO4)3)) — mineral

Pink Garnet (likely Almandine or Rhodolite)

Garnet Group (Fe3Al2(SiO4)3 to Mg3Al2(SiO4)3)

Limonite (Iron Ore) (Limonite (FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Green Schist (Greenschist (Chlorite Schist)) — metamorphic

Green Schist

Greenschist (Chlorite Schist)

Concretion (Sedimentary Concretion (e.g., Siderite or Ironstone)) — sedimentary

Concretion

Sedimentary Concretion (e.g., Siderite or Ironstone)

Sagenitic Agate (with Goethite/Rutile inclusions) (Silicon Dioxide (SiO2) with hydrous ferric oxide inclusions) — mineral

Sagenitic Agate (with Goethite/Rutile inclusions)

Silicon Dioxide (SiO2) with hydrous ferric oxide inclusions

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Biotite (Mica) (Biotite group (K(Mg,Fe)3AlSi3O10(F,OH)2)) — mineral

Biotite (Mica)

Biotite group (K(Mg,Fe)3AlSi3O10(F,OH)2)

Riverstone (Sandstone or Quartzite) (Sedimentary Rock (likely Arenite)) — sedimentary

Riverstone (Sandstone or Quartzite)

Sedimentary Rock (likely Arenite)

Garnet (Garnet Group (Silicate Minerals)) — mineral

Garnet

Garnet Group (Silicate Minerals)

Orthoclase Feldspar (KAlSi3O8 (Potassium aluminum silicate)) — mineral

Orthoclase Feldspar

KAlSi3O8 (Potassium aluminum silicate)

Desert Rose (Barite Rose or Gypsum Rose) (Barium Sulfate (BaSO4) / Hydrated Calcium Sulfate (CaSO4·2H2O)) — mineral

Desert Rose (Barite Rose or Gypsum Rose)

Barium Sulfate (BaSO4) / Hydrated Calcium Sulfate (CaSO4·2H2O)

Dendritic Agate (Silicon dioxide with manganese or iron oxide inclusions (SiO2)) — gemstone

Dendritic Agate

Silicon dioxide with manganese or iron oxide inclusions (SiO2)

Drupa or Druzy Quartz on Geode Fragment (Crystalline Silicon Dioxide (SiO2)) — mineral

Drupa or Druzy Quartz on Geode Fragment

Crystalline Silicon Dioxide (SiO2)

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

Gneiss

Gneiss (High-Grade Metamorphic Rock)

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

Almandine Garnet

Almandine, Fe3Al2(SiO4)3

Obsidian (Volcanic glass (SiO2 + impurities)) — igneous

Obsidian

Volcanic glass (SiO2 + impurities)

Feldspar (Orthoclase) (Potassium Feldspar (KAlSi3O8)) — mineral

Feldspar (Orthoclase)

Potassium Feldspar (KAlSi3O8)

Quartz-Veined Sandstone (Quartz-veined Arenite) — sedimentary

Quartz-Veined Sandstone

Quartz-veined Arenite

Fossil Shell (Brachiopod or Mollusk fossil) — fossil

Fossil Shell

Brachiopod or Mollusk fossil

Lepidolite (Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)) — mineral

Lepidolite

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)

Limonite (Ironstone) (Limonite (mixture of hydrated iron oxides, primarily Goethite α-FeO(OH))) — mineral

Limonite (Ironstone)

Limonite (mixture of hydrated iron oxides, primarily Goethite α-FeO(OH))

Limonite (Iron Ore) (FeO(OH)·nH2O (Hydrated iron(III) oxide-hydroxide)) — mineral

Limonite (Iron Ore)

FeO(OH)·nH2O (Hydrated iron(III) oxide-hydroxide)

Sandstone (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone

Clastic sedimentary rock (primarily SiO2)

Obsidian (Volcanic Glass (70% or more SiO2)) — igneous

Obsidian

Volcanic Glass (70% or more SiO2)

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)