Rock Identifier

Category

Mineral Side Rock

Browse mineral side rock specimens identified by the Rock Identifier community.

Learn about Mineral Side Rock in the encyclopedia

Rock Salt

Calc-Silicate Rock

Calc-Silicate Rock

Siderite

Halite

Dolomite

Gypsum

Coal

Claystone

Serpentinite

Carbonatite

Skarn

Schist

Raw quartz crystal cluster (Quartz (silicon dioxide, SiO₂), likely included or iron-stained quartz) — mineral

Raw quartz crystal cluster

Quartz (silicon dioxide, SiO₂), likely included or iron-stained quartz

Petoskey Stone (Fossilized Coral) (Hexagonaria percarinata) — fossil

Petoskey Stone (Fossilized Coral)

Hexagonaria percarinata

Clear Quartz (Quartz (Silicon Dioxide - SiO2)) — mineral

Clear Quartz

Quartz (Silicon Dioxide - SiO2)

Schorl (Black Tourmaline) (Sodium iron aluminum borosilicate (NaFe3Al6(BO3)3Si6O18(OH)4)) — mineral

Schorl (Black Tourmaline)

Sodium iron aluminum borosilicate (NaFe3Al6(BO3)3Si6O18(OH)4)

Green Tourmaline (Verdelite) (Elbaite (Complex Borosilicate: Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)) — mineral

Green Tourmaline (Verdelite)

Elbaite (Complex Borosilicate: Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)

Aragonite Star Cluster (Aragonite (Calcium Carbonate - CaCO3)) — mineral

Aragonite Star Cluster

Aragonite (Calcium Carbonate - CaCO3)

Green Apophyllite on Stilbite (Fluorapophyllite-(K) [(KCa4Si8O20F)·8H2O] and Stilbite [NaCa4(Si27Al9)O72·28H2O]) — mineral

Green Apophyllite on Stilbite

Fluorapophyllite-(K) [(KCa4Si8O20F)·8H2O] and Stilbite [NaCa4(Si27Al9)O72·28H2O]

Chlorite Phantom Quartz (Silicon Dioxide (SiO2) with Chlorite group inclusions [(Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6]) — mineral

Chlorite Phantom Quartz

Silicon Dioxide (SiO2) with Chlorite group inclusions [(Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6]

Petoskey Stone (Hexagonaria percarinata (Fossilized Rugose Coral)) — sedimentary

Petoskey Stone

Hexagonaria percarinata (Fossilized Rugose Coral)

Golden Healer Quartz (Iron-Stained Quartz) (Silicon Dioxide (SiO2) with Iron Oxide/Hydroxide inclusions) — mineral

Golden Healer Quartz (Iron-Stained Quartz)

Silicon Dioxide (SiO2) with Iron Oxide/Hydroxide inclusions

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

Almandine Garnet

Almandine (Fe3Al2(SiO4)3)

Quartz crystal cluster (Quartz (silicon dioxide, SiO₂), likely included or coated with chlorite and iron-oxide minerals) — mineral

Quartz crystal cluster

Quartz (silicon dioxide, SiO₂), likely included or coated with chlorite and iron-oxide minerals

Quartz-rich crystal aggregate (Quartz (SiO₂), possibly druzy quartz with iron-oxide staining) — mineral

Quartz-rich crystal aggregate

Quartz (SiO₂), possibly druzy quartz with iron-oxide staining

Garnet (Garnet group (X3Y2(SiO4)3)) — mineral

Garnet

Garnet group (X3Y2(SiO4)3)

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

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

Aquamarine on Feldspar Matrix (Beryl (Be3Al2Si6O18) with Potassium Feldspar (KAlSi3O8)) — mineral

Aquamarine on Feldspar Matrix

Beryl (Be3Al2Si6O18) with Potassium Feldspar (KAlSi3O8)

Polished smoky quartz crystal point (Quartz (SiO₂), likely iron-colored or smoky quartz with milky inclusions) — mineral

Polished smoky quartz crystal point

Quartz (SiO₂), likely iron-colored or smoky quartz with milky inclusions

Quartz crystal cluster (Quartz (silicon dioxide, SiO₂)) — mineral

Quartz crystal cluster

Quartz (silicon dioxide, SiO₂)

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

Garnet (likely Almandine)

Almandine (Fe3Al2(SiO4)3)

Black Chert (Flint) (Silicon Dioxide (SiO2)) — sedimentary

Black Chert (Flint)

Silicon Dioxide (SiO2)

Quartz crystal (likely clear quartz) (Quartz, silicon dioxide (SiO₂)) — mineral

Quartz crystal (likely clear quartz)

Quartz, silicon dioxide (SiO₂)

Amethyst geode (Quartz (SiO₂), purple variety amethyst; typically hosted in volcanic basalt) — mineral

Amethyst geode

Quartz (SiO₂), purple variety amethyst; typically hosted in volcanic basalt

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

Garnet (likely Almandine)

Almandine (Fe3Al2(SiO4)3)

Amethyst (Amethyst (Silicon Dioxide, SiO2)) — mineral

Amethyst

Amethyst (Silicon Dioxide, SiO2)

Likely metallic ore specimen (Undetermined; the silvery, reflective surface may indicate specular hematite (Fe₂O₃), but the image is insufficient for reliable identification.) — mineral

Likely metallic ore specimen

Undetermined; the silvery, reflective surface may indicate specular hematite (Fe₂O₃), but the image is insufficient for reliable identification.

Quartz crystal cluster (Quartz (silicon dioxide, SiO₂), likely clear or milky quartz) — mineral

Quartz crystal cluster

Quartz (silicon dioxide, SiO₂), likely clear or milky quartz

Tourmalinated quartz crystal point (Quartz (SiO₂) with black tourmaline (schorl, NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄) inclusions) — mineral

Tourmalinated quartz crystal point

Quartz (SiO₂) with black tourmaline (schorl, NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄) inclusions

Milky quartz (Quartz, silicon dioxide (SiO₂)) — mineral

Milky quartz

Quartz, silicon dioxide (SiO₂)

Milky quartz crystal cluster (Quartz, silicon dioxide (SiO₂)) — mineral

Milky quartz crystal cluster

Quartz, silicon dioxide (SiO₂)

Petoskey Stone (Hexagonaria percarinata (Fossilized Rugose Coral)) — sedimentary

Petoskey Stone

Hexagonaria percarinata (Fossilized Rugose Coral)

Petoskey Stone (Fossilized Coral) (Hexagonaria percarinata (CaCO3)) — sedimentary

Petoskey Stone (Fossilized Coral)

Hexagonaria percarinata (CaCO3)

Amethyst Cluster (Silicon Dioxide with Iron impurities (SiO2)) — mineral

Amethyst Cluster

Silicon Dioxide with Iron impurities (SiO2)

Echinoid Fossil (Sea Urchin) (Echinoidea (specifically likely Schizaster or similar genus), calcium carbonate (CaCO3)) — sedimentary

Echinoid Fossil (Sea Urchin)

Echinoidea (specifically likely Schizaster or similar genus), calcium carbonate (CaCO3)

Amethyst-bearing quartz geode or crystal cluster (Quartz, SiO₂; purple coloration from trace iron and irradiation) — mineral

Amethyst-bearing quartz geode or crystal cluster

Quartz, SiO₂; purple coloration from trace iron and irradiation

Amethyst quartz cluster (Quartz, SiO₂; purple coloration from trace iron and irradiation) — mineral

Amethyst quartz cluster

Quartz, SiO₂; purple coloration from trace iron and irradiation

Amethyst (SiO2 (Silicon Dioxide) - Purple variety of Crystalline Quartz) — mineral

Amethyst

SiO2 (Silicon Dioxide) - Purple variety of Crystalline Quartz

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

Garnet

Almandine (Fe3Al2(SiO4)3)

Amethyst/Smoky Quartz Cluster (Silicon Dioxide (SiO2)) — mineral

Amethyst/Smoky Quartz Cluster

Silicon Dioxide (SiO2)

Quartz crystal cluster (Quartz (silicon dioxide, SiO₂), likely pale amethyst or iron-stained quartz) — mineral

Quartz crystal cluster

Quartz (silicon dioxide, SiO₂), likely pale amethyst or iron-stained quartz

Amethyst crystal point (Amethyst, purple quartz (SiO₂)) — mineral

Amethyst crystal point

Amethyst, purple quartz (SiO₂)

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

Red Garnet (likely Almandine)

Almandine (Fe3Al2(SiO4)3)

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

Almandine Garnet

Almandine (Fe3Al2(SiO4)3)