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

Blue Apatite (Fluoroapatite (Ca5(PO4)3F)) — mineral

Blue Apatite

Fluoroapatite (Ca5(PO4)3F)

Banded Serpentine (Serpentine group (subgroup Lizardite or Antigorite) - Mg3Si2O5(OH)4) — metamorphic

Banded Serpentine

Serpentine group (subgroup Lizardite or Antigorite) - Mg3Si2O5(OH)4

Gneiss (Metamorphic Rock) (Gneiss) — metamorphic

Gneiss (Metamorphic Rock)

Gneiss

Dalmatian Stone (Dalmatian Stone (Felsic Igneous Rock)) — igneous

Dalmatian Stone

Dalmatian Stone (Felsic Igneous Rock)

Snowflake Obsidian (Volcanic glass with Cristobalite inclusions (70–75% SiO2)) — Igneous

Snowflake Obsidian

Volcanic glass with Cristobalite inclusions (70–75% SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Peacock Ore (Bornite or Iridescent Chalcopyrite) (Bornite (Cu5FeS4) or Acid-treated Chalcopyrite (CuFeS2)) — mineral

Peacock Ore (Bornite or Iridescent Chalcopyrite)

Bornite (Cu5FeS4) or Acid-treated Chalcopyrite (CuFeS2)

Strawberry Quartz (Silicon Dioxide (SiO2) with inclusions of Goethite or Hematite) — Mineral

Strawberry Quartz

Silicon Dioxide (SiO2) with inclusions of Goethite or Hematite

Granite (Granite (Felsic intrusive igneous rock)) — igneous

Granite

Granite (Felsic intrusive igneous rock)

Scoria (Lava Rock) (Scoria) — igneous

Scoria (Lava Rock)

Scoria

Quartz (Milky Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Granite (Granite (a phaneritic intrusive igneous rock consisting mainly of quartz, alkali feldspar, and plagioclase)) — igneous

Granite

Granite (a phaneritic intrusive igneous rock consisting mainly of quartz, alkali feldspar, and plagioclase)

Wonderstone (Banded Rhyolite) (Rhyolite (Silicon Dioxide with Iron Oxide impurities)) — igneous

Wonderstone (Banded Rhyolite)

Rhyolite (Silicon Dioxide with Iron Oxide impurities)

Peridotite (Dunite/Lherzolite) (Ultramafic Peridotite) — igneous

Peridotite (Dunite/Lherzolite)

Ultramafic Peridotite

Prehnite (Prehnite, Ca2Al2Si3O10(OH)2) — Mineral

Prehnite

Prehnite, Ca2Al2Si3O10(OH)2

Diorite (Spotted) (Diorite (Intrusive igneous rock)) — igneous

Diorite (Spotted)

Diorite (Intrusive igneous rock)

Pink Rhyolite (Rhyolite (High-silica volcanic rock)) — igneous

Pink Rhyolite

Rhyolite (High-silica volcanic rock)

Green Fluorite (Calcium Fluoride (CaF2)) — mineral

Green Fluorite

Calcium Fluoride (CaF2)

Sandstone (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone

Arenite (composed primarily of SiO2)

Quartz / Common Opal (Silicon Dioxide (SiO2)) — mineral

Quartz / Common Opal

Silicon Dioxide (SiO2)

Sandstone (with Iron Staining) (Clastic Sedimentary Rock (primarily Quartz, SiO2)) — sedimentary

Sandstone (with Iron Staining)

Clastic Sedimentary Rock (primarily Quartz, SiO2)

Granite (Granite (composed primarily of Quartz SiO2, Potassium Feldspar KAlSi3O8, and Plagioclase Feldspar)) — igneous

Granite

Granite (composed primarily of Quartz SiO2, Potassium Feldspar KAlSi3O8, and Plagioclase Feldspar)

Diamond (Faceted) (Diamond (Carbon, C)) — mineral

Diamond (Faceted)

Diamond (Carbon, C)

Red Scoria (Lava Rock) (Scoria (Extrusive Igneous Rock / Mafic composition)) — igneous

Red Scoria (Lava Rock)

Scoria (Extrusive Igneous Rock / Mafic composition)

Veined Quartz (SiO2 (Silicon Dioxide)) — Mineral

Veined Quartz

SiO2 (Silicon Dioxide)

Milky Quartz (Crystalline Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

Bornite (Bornite (Cu5FeS4)) — mineral

Bornite

Bornite (Cu5FeS4)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Serpentine (Antigorite, Lizardite, or Chrysotile (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4) — metamorphic

Serpentine

Antigorite, Lizardite, or Chrysotile (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Sandstone (with potential fossil inclusions) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (with potential fossil inclusions)

Clastic sedimentary rock (primarily SiO2)

Quartz (Silicon Dioxide (SiO2)) — Mineral

Quartz

Silicon Dioxide (SiO2)

Peridot (Olivine (Mg,Fe)2SiO4) — Mineral

Peridot

Olivine (Mg,Fe)2SiO4

Granite (River-worn Cobble) (Phaneritic Felsic Igneous Rock (primarily Quartz, Potassium Feldspar, and Plagioclase)) — igneous

Granite (River-worn Cobble)

Phaneritic Felsic Igneous Rock (primarily Quartz, Potassium Feldspar, and Plagioclase)

Geode (unopened) or Calcareous Nodule (Siliceous or Calcareous Concretion/Nodule) — sedimentary

Geode (unopened) or Calcareous Nodule

Siliceous or Calcareous Concretion/Nodule

Feldspar (KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8) — mineral

Feldspar

KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8

Quartz with Iron Staining (Silicon Dioxide (SiO2)) — mineral

Quartz with Iron Staining

Silicon Dioxide (SiO2)

Felsic Drill Core (likely Gneiss or Granite)

Felsic Metamorphic Rock (Gneissic profile)

Green Quartz / Prasiolite (Silicon Dioxide (SiO2)) — mineral

Green Quartz / Prasiolite

Silicon Dioxide (SiO2)

Pumice (Pumice (a highly vesicular volcanic glass)) — igneous

Pumice

Pumice (a highly vesicular volcanic glass)

Garnet (Almandine-Pyrope group, X3Y2(SiO4)3) — mineral

Garnet

Almandine-Pyrope group, X3Y2(SiO4)3

Pink Feldspar (Orthoclase Feldspar (KAlSi3O8)) — mineral

Pink Feldspar

Orthoclase Feldspar (KAlSi3O8)