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

Sagenite Agate

Ribbon Jasper

Leopard Skin Jasper

Leopard Skin Jasper

Flower Jasper

Dendritic Opal

Feather Jasper

Starburst Agate

Plume Agate

Feather Agate

Landscape Opal

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

Prehnite

Prehnite - Ca2Al(AlSi3O10)(OH)2

Quartz with Tourmaline inclusions (Silicon Dioxide (SiO2) with Tourmaline needles) — mineral

Quartz with Tourmaline inclusions

Silicon Dioxide (SiO2) with Tourmaline needles

Dendritic Agate (Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions) — mineral

Dendritic Agate

Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions

Obsidian (Volcanic Glass (predominantly SiO2)) — igneous

Obsidian

Volcanic Glass (predominantly SiO2)

Limonite (Ironstone) (FeO(OH)qn H2O) — sedimentary

Limonite (Ironstone)

FeO(OH)qn H2O

Petrified Wood Agate (Silicified Wood (primarily SiO2)) — fossil

Petrified Wood Agate

Silicified Wood (primarily SiO2)

Fossilized Shark Tooth (Megalodon or Carcharocles species fragment) (Otodus megalodon / Carcharocles spp. (Apatite / Calcium Phosphate)) — fossil

Fossilized Shark Tooth (Megalodon or Carcharocles species fragment)

Otodus megalodon / Carcharocles spp. (Apatite / Calcium Phosphate)

Vanadinite (Pb5(VO4)3Cl) — mineral

Vanadinite

Pb5(VO4)3Cl

Yellow Jasper Pebble (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — mineral

Yellow Jasper Pebble

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Schist (Diamond Drill Core) (Mica Schist) — metamorphic

Schist (Diamond Drill Core)

Mica Schist

Quartz Geode Fragment (Silicon Dioxide (SiO2) in a Sedimentary Host) — mineral

Quartz Geode Fragment

Silicon Dioxide (SiO2) in a Sedimentary Host

Vanadinite (Pb5(VO4)3Cl) — mineral

Vanadinite

Pb5(VO4)3Cl

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

Limonite with Ironstone (Limonite (hydrated iron(III) oxide-hydroxides), FeO(OH)·nH2O) — mineral

Limonite with Ironstone

Limonite (hydrated iron(III) oxide-hydroxides), FeO(OH)·nH2O

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

Limonite (Iron Ore)

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

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

Limonite (Iron Ore)

FeO(OH)·nH2O

Diorite (Intermediate Phaneritic Plutonic Rock - Diorite) — igneous

Diorite

Intermediate Phaneritic Plutonic Rock - Diorite

Kimberlite with Diamond (Kimberlite (Porphyritic Peridotite)) — igneous

Kimberlite with Diamond

Kimberlite (Porphyritic Peridotite)

Sandstone (Quartzose Sandstone (Sedimentary Rock)) — sedimentary

Sandstone

Quartzose Sandstone (Sedimentary Rock)

Sandstone and Mixed Rock Assemblage (Clastic Sedimentary Rock / Quartz Arenite) — sedimentary

Sandstone and Mixed Rock Assemblage

Clastic Sedimentary Rock / Quartz Arenite

Sandstone (Quartzose) (Arenite (SiO2 based typically)) — sedimentary

Sandstone (Quartzose)

Arenite (SiO2 based typically)

Calcite (Yellow/Orange variety - sometimes called Honey Calcite) (Calcite) — Mineral

Calcite (Yellow/Orange variety - sometimes called Honey Calcite)

Calcite

African Turquoise (Jasper) (Silicon Dioxide (SiO2) - Macro-crystalline Quartz with inclusions) — sedimentary

African Turquoise (Jasper)

Silicon Dioxide (SiO2) - Macro-crystalline Quartz with inclusions

Agate (Plume/Moss variety) (Cryptocrystalline Quartz (SiO2) with iron/manganese inclusions) — mineral

Agate (Plume/Moss variety)

Cryptocrystalline Quartz (SiO2) with iron/manganese inclusions

Schist (Chlorite or Mica Schist) — metamorphic

Schist

Chlorite or Mica Schist

Blue Quartz (Silicon Dioxide (SiO2) with inclusions) — mineral

Blue Quartz

Silicon Dioxide (SiO2) with inclusions

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)

Eclipse Stone (Kabamba Jasper) (Rhyolite with Aegirine (NaFe3+Si2O6)) — metamorphic

Eclipse Stone (Kabamba Jasper)

Rhyolite with Aegirine (NaFe3+Si2O6)

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

Banded Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Moss Agate (Silicon Dioxide (SiO2) with inclusions) — mineral

Moss Agate

Silicon Dioxide (SiO2) with inclusions

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Rough amber-like brown mineral specimen (Uncertain from photograph; possibly iron-stained quartz, common opal, or resinous amber) — mineral

Rough amber-like brown mineral specimen

Uncertain from photograph; possibly iron-stained quartz, common opal, or resinous amber

Polished Black Obsidian (Volcanic Glass (70-75% SiO2)) — igneous

Polished Black Obsidian

Volcanic Glass (70-75% SiO2)

Dendritic Rhodonite (Rhodonite (Manganese Silicate), (Mn,Fe,Mg,Ca)SiO3) — mineral

Dendritic Rhodonite

Rhodonite (Manganese Silicate), (Mn,Fe,Mg,Ca)SiO3

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

Biotite (Black Mica)

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

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

Fossilized Shark Tooth

Carcharodon (Galeocerdo sp. or Lamniform)

Polished Mexican “Crazy Lace” agate tower (Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide inclusions) — mineral

Polished Mexican “Crazy Lace” agate tower

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

Sandstone Pebble (Arenite (SiO2 complex)) — sedimentary

Sandstone Pebble

Arenite (SiO2 complex)

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

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Conglomerate (Conglomerate (Sedimentary Rock)) — sedimentary

Conglomerate

Conglomerate (Sedimentary Rock)