Rock Identifier

Category

Mineral Like Byproduct (Often Mistaken For Igneous Rock Or Meteorite)

Browse mineral like byproduct (often mistaken for igneous rock or meteorite) specimens identified by the Rock Identifier community.

Learn about Mineral Like Byproduct (Often Mistaken For Igneous Rock Or Meteorite) in the encyclopedia

Calc-Silicate Rock

Calc-Silicate Rock

Carbonatite

Pegmatite

Argillite

Pyroxenite

Dalmatian Jasper

Dalmatian Jasper

Skarn

Serpentinite

Granulite

Cordierite Hornfels

Cordierite Hornfels

Lamprophyre

Bauxite

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Diorite (Diorite (intermediate intrusive igneous rock)) — igneous

Diorite

Diorite (intermediate intrusive igneous rock)

Scoria (Lava Rock) (Scoria (basaltic pyroclastic rock)) — igneous

Scoria (Lava Rock)

Scoria (basaltic pyroclastic rock)

Basalt (Beach Pebble) (Extrusive mafic volcanic rock) — igneous

Basalt (Beach Pebble)

Extrusive mafic volcanic rock

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Pumice (Pumice (volcanic glass with vesicular texture)) — igneous

Pumice

Pumice (volcanic glass with vesicular texture)

Sodalite (Na8(Al6Si6O24)Cl2 (Sodium Aluminum Silicate Chloride)) — mineral

Sodalite

Na8(Al6Si6O24)Cl2 (Sodium Aluminum Silicate Chloride)

Basalt with Calcite Veining (Aphanitic Mafic Igneous Rock (primarily Plagioclase and Pyroxene)) — igneous

Basalt with Calcite Veining

Aphanitic Mafic Igneous Rock (primarily Plagioclase and Pyroxene)

Hydrothermal Quartz Breccia (Hydrothermal Breccia with Quartz and Chloritic/Epidote Clasts) — metamorphic

Hydrothermal Quartz Breccia

Hydrothermal Breccia with Quartz and Chloritic/Epidote Clasts

Sandstone (Arenite (Clastic Sedimentary Rock)) — sedimentary

Sandstone

Arenite (Clastic Sedimentary Rock)

Quartz Vein in Host Rock (Silicon Dioxide (SiO2) with host rock (often Schist or Basalt)) — mineral

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) with host rock (often Schist or Basalt)

Granitoid (Common Granite) (Intrusive Igneous Granite-type Rock) — igneous

Granitoid (Common Granite)

Intrusive Igneous Granite-type Rock

Sapphire (Corundum) (Corundum (Al2O3)) — mineral

Sapphire (Corundum)

Corundum (Al2O3)

Beryl (likely Pink/Morganite variety) (Beryllium aluminum silicate (Be3Al2Si6O18)) — mineral

Beryl (likely Pink/Morganite variety)

Beryllium aluminum silicate (Be3Al2Si6O18)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Smoky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Smoky Quartz

Quartz (Silicon Dioxide, SiO2)

Magnetite (Magnetite (Iron(II,III) oxide, Fe3O4)) — mineral

Magnetite

Magnetite (Iron(II,III) oxide, Fe3O4)

Basalt (Arrowhead form) (Extrusive mafic igneous rock) — igneous

Basalt (Arrowhead form)

Extrusive mafic igneous rock

Yellow Jasper (Silicon Dioxide (SiO2) with Goethite inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with Goethite inclusions

Pegmatite (Coarse-grained Igneous Rock (Granitic Pegmatite)) — igneous

Pegmatite

Coarse-grained Igneous Rock (Granitic Pegmatite)

Obsidian (Volcanic glass (high silica volcanic rock)) — igneous

Obsidian

Volcanic glass (high silica volcanic rock)

Lava Rock (Scoria) (Scoria (Mafic volcanic rock)) — igneous

Lava Rock (Scoria)

Scoria (Mafic volcanic rock)

Green Quartz (Aventurine or Prase) (Silicon Dioxide (SiO2) with inclusions) — mineral

Green Quartz (Aventurine or Prase)

Silicon Dioxide (SiO2) with inclusions

Basalt (Basalt (dominated by Plagioclase Feldspar and Pyroxene)) — igneous

Basalt

Basalt (dominated by Plagioclase Feldspar and Pyroxene)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Granite (Granite) — igneous

Granite

Granite

Sandstone (Arenite (SiO2 based clastic rock)) — sedimentary

Sandstone

Arenite (SiO2 based clastic rock)

Geode (unopened) (SiO2 - Chert-shelled concretion (mostly Quartz)) — sedimentary

Geode (unopened)

SiO2 - Chert-shelled concretion (mostly Quartz)

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Quartz (Smoky/Druzy variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Smoky/Druzy variety)

Silicon Dioxide (SiO2)

Quartz with Iron Stains (Silicon Dioxide (SiO2) with FeOx inclusions) — mineral

Quartz with Iron Stains

Silicon Dioxide (SiO2) with FeOx inclusions

Sunstone (Feldspar group (Plagioclase / Oligoclase)) — mineral

Sunstone

Feldspar group (Plagioclase / Oligoclase)

Granite (Granite (interlocking crystals of quartz, feldspar, and mica)) — igneous

Granite

Granite (interlocking crystals of quartz, feldspar, and mica)

Scoria (Lava Rock) (Scoria (extrusive volcanic rock)) — igneous

Scoria (Lava Rock)

Scoria (extrusive volcanic rock)

Magnetite with Pyroxene (Magnetite (Fe3O4) in Mafic Igneous Matrix) — mineral/igneous

Magnetite with Pyroxene

Magnetite (Fe3O4) in Mafic Igneous Matrix

mineral/igneous

Veined Sandstone with Calcite Veins (Sedimentary sandstone with hydrothermal/mineral veins) — sedimentary

Veined Sandstone with Calcite Veins

Sedimentary sandstone with hydrothermal/mineral veins

Sandstone (Fossiliferous) (Arenite / Clastic Sedimentary Rock) — sedimentary

Sandstone (Fossiliferous)

Arenite / Clastic Sedimentary Rock

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Gabbro (potentially weathered) (Mafic Plutonic Rock (Gabbro/Diabase)) — igneous

Gabbro (potentially weathered)

Mafic Plutonic Rock (Gabbro/Diabase)

Pink Granite (Phaneritic Felsic Igneous Rock (Granite)) — igneous

Pink Granite

Phaneritic Felsic Igneous Rock (Granite)

Diorite (Polished Tumble) (Diorite (Intermediate intrusive igneous rock)) — Igneous

Diorite (Polished Tumble)

Diorite (Intermediate intrusive igneous rock)

Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)