Rock Identifier

Category

Mineral Like Byproduct

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

Learn about Mineral Like Byproduct in the encyclopedia

Calc-Silicate Rock

Calc-Silicate Rock

Garden Quartz

Ribbon Jasper

Sagenite Agate

Leopard Skin Jasper

Leopard Skin Jasper

Flower Jasper

Feather Jasper

Dendritic Opal

Starburst Agate

Plume Agate

Feather Agate

Moss Opal

Petrified Wood (Silicified wood (Quartz replacement)) — sedimentary

Petrified Wood

Silicified wood (Quartz replacement)

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

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

Lepidolite

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

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

Limonite Geode

Hydrated Iron Oxide Hydroxide, FeO(OH)·nH2O

Pegmatite (with Muscovite Mica and Quartz) (Granitic Pegmatite (chiefly KAlSi3O8, SiO2, and KAl2(AlSi3O10)(OH)2)) — igneous

Pegmatite (with Muscovite Mica and Quartz)

Granitic Pegmatite (chiefly KAlSi3O8, SiO2, and KAl2(AlSi3O10)(OH)2)

Sandstone (Sedimentary Rock (Quartz Arenite)) — sedimentary

Sandstone

Sedimentary Rock (Quartz Arenite)

Sandstone (Sedimentary Clastic Rock) — sedimentary

Sandstone

Sedimentary Clastic Rock

Septarian Nodule (Septarian Concretion (Calcite, Aragonite, Limestone)) — sedimentary

Septarian Nodule

Septarian Concretion (Calcite, Aragonite, Limestone)

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Educational Geologic Collection (Mixed Mineral and Rock Collection (Various compositions)) — mineral

Educational Geologic Collection

Mixed Mineral and Rock Collection (Various compositions)

Pink Dyed Agate (Pink Agate Slice) (Silicon Dioxide (SiO2) - Chalcedony / Cryptocrystalline Quartz) — mineral

Pink Dyed Agate (Pink Agate Slice)

Silicon Dioxide (SiO2) - Chalcedony / Cryptocrystalline Quartz

Petrified Wood (Silicified Wood (primarily SiO2 - Silicon Dioxide)) — mineral

Petrified Wood

Silicified Wood (primarily SiO2 - Silicon Dioxide)

Sandstone (Ferruginous) (Sandstone (Clastic sedimentary rock, predominantly SiO2 with Fe2O3 cement)) — sedimentary

Sandstone (Ferruginous)

Sandstone (Clastic sedimentary rock, predominantly SiO2 with Fe2O3 cement)

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

Gneiss

Gneiss (High-grade metamorphic rock)

Fossil Shark Tooth (Chondrichthyes (class)) — fossil

Fossil Shark Tooth

Chondrichthyes (class)

Gneiss (Gneiss (Metamorphic rock composed primarily of Quartz, Feldspar, and Mica/Amphibole)) — metamorphic

Gneiss

Gneiss (Metamorphic rock composed primarily of Quartz, Feldspar, and Mica/Amphibole)

Mahogany Obsidian (Volcanic Glass with Hematite/Magnetite (SiO2 + Fe2O3)) — igneous

Mahogany Obsidian

Volcanic Glass with Hematite/Magnetite (SiO2 + Fe2O3)

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

Lepidolite

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

Fossilized Dinosaur Skull (Tyrannosaurus rex) (Tyrannosaurus rex (permineralized fossil), rich in Hydroxylapatite/Silica) — sedimentary

Fossilized Dinosaur Skull (Tyrannosaurus rex)

Tyrannosaurus rex (permineralized fossil), rich in Hydroxylapatite/Silica

Limonite/Ironstone (Limonite (FeO(OH)·nH2O)) — mineral

Limonite/Ironstone

Limonite (FeO(OH)·nH2O)

Limonite (FeO(OH)•nH2O) — mineral

Limonite

FeO(OH)•nH2O

Limonite (FeO(OH)•nH2O) — mineral

Limonite

FeO(OH)•nH2O

Pegmatite (Igneous Pegmatite) — igneous

Pegmatite

Igneous Pegmatite

Fossilized Coral (Anthozoa) — fossil

Fossilized Coral

Anthozoa

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

Almandine Garnet

Almandine (Fe3Al2(SiO4)3)

Muscovite Mica (Muscovite (KAl2(AlSi3O10)(F,OH)2)) — mineral

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(F,OH)2)

Fossilized Shark Tooth (Carcharodon (Galeocerdo sp. or Lamniform)) — mineral

Fossilized Shark Tooth

Carcharodon (Galeocerdo sp. or Lamniform)

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

Lepidolite

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

Septarian Nodule (Septarian concretion (Calcite, Aragonite, Limestone)) — sedimentary

Septarian Nodule

Septarian concretion (Calcite, Aragonite, Limestone)

Vanadinite (Pb5(VO4)3Cl) — mineral

Vanadinite

Pb5(VO4)3Cl

Kimberlite (Ultramafic igneous rock) — igneous

Kimberlite

Ultramafic igneous rock

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

Banded Gneiss

Gneiss (High-grade Metamorphic Rock)

Snowflake Obsidian and Green Aventurine (Volcanic Glass (SiO2 with Cristobalite inclusions) and Quartz (SiO2 with Fuchsite)) — igneous and metamorphic

Snowflake Obsidian and Green Aventurine

Volcanic Glass (SiO2 with Cristobalite inclusions) and Quartz (SiO2 with Fuchsite)

igneous and metamorphic

Almandine Garnet (Fe3Al2(SiO4)3) — mineral

Almandine Garnet

Fe3Al2(SiO4)3

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

Potassium Feldspar (Orthoclase)

Orthoclase (KAlSi3O8)

Prehnite (Prehnite - Ca2Al(AlSi3O10)(OH)2) — mineral

Prehnite

Prehnite - Ca2Al(AlSi3O10)(OH)2

Copper Ore (Chrysocolla/Malachite in host rock) (Hydrated copper phyllosilicate and copper carbonate hydroxide) — mineral

Copper Ore (Chrysocolla/Malachite in host rock)

Hydrated copper phyllosilicate and copper carbonate hydroxide

Quartz with Sericite and Cinnabar (Silicon Dioxide (SiO2) with muscovite/sericite and mercury sulfide (HgS)) — mineral

Quartz with Sericite and Cinnabar

Silicon Dioxide (SiO2) with muscovite/sericite and mercury sulfide (HgS)

Dendritic Limestone (Limestone with manganese oxide dendrites, CaCO3) — sedimentary

Dendritic Limestone

Limestone with manganese oxide dendrites, CaCO3

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

Obsidian

Volcanic glass (SiO2 + impurities)

Landscape Jasper (Microcrystalline quartz (SiO2) with iron and manganese oxide inclusions) — sedimentary

Landscape Jasper

Microcrystalline quartz (SiO2) with iron and manganese oxide inclusions

Dendritic Limestone (CaCO3 with manganese oxide dendrites) — sedimentary

Dendritic Limestone

CaCO3 with manganese oxide dendrites