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

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Amethyst (Crystalline Quartz (SiO2 with iron impurities)) — gemstone

Amethyst

Crystalline Quartz (SiO2 with iron impurities)

Epidote (Epidote (Ca2(Al2,Fe3+)AlSi3O12(OH))) — mineral

Epidote

Epidote (Ca2(Al2,Fe3+)AlSi3O12(OH))

Mixed Mineral Collection (Quartz, Amethyst, Rose Quartz, Pyrite, etc.) (Mixed Silicates and Sulfides (SiO2, FeS2)) — mineral

Mixed Mineral Collection (Quartz, Amethyst, Rose Quartz, Pyrite, etc.)

Mixed Silicates and Sulfides (SiO2, FeS2)

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Petoskey Stone (Hexagonaria percarinata) — fossil

Petoskey Stone

Hexagonaria percarinata

Amethyst (Quartz Cluster) (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst (Quartz Cluster)

Silicon Dioxide (SiO2) with iron impurities

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

Petoskey Stone

Hexagonaria percarinata (Fossilized Coral)

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

Quartz crystal

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

Corundum (Corundum (Al2O3)) — Mineral

Corundum

Corundum (Al2O3)

Amethyst Quartz Cluster (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst Quartz Cluster

Silicon Dioxide (SiO2) with iron impurities

Beryl in Quartz Matrix (Beryllium Aluminum Silicate (Be3Al2Si6O18)) — mineral

Beryl in Quartz Matrix

Beryllium Aluminum Silicate (Be3Al2Si6O18)

Amethyst (Polished Point) (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst (Polished Point)

Silicon Dioxide (SiO2) with iron impurities

Tumbled Clear Quartz and Citrine Points (Silicon Dioxide (SiO2)) — mineral

Tumbled Clear Quartz and Citrine Points

Silicon Dioxide (SiO2)

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Epidote (Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))) — mineral

Epidote

Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Black Tourmaline (Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)) — mineral

Black Tourmaline

Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with iron impurities

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

Quartz (Milky/Crystalline variety)

Silicon Dioxide (SiO2)

Amethyst or Smoky Quartz Geode Slice (Crystalline Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst or Smoky Quartz Geode Slice

Crystalline Silicon Dioxide (SiO2) with iron impurities

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

Petoskey Stone

Hexagonaria percarinata (Fossilized Rugose Coral)

Fossil Coral (Petoskey Stone / Rugose Coral) (Hexagonaria percarinata (Order: Rugosa, Fossilized Calcium Carbonate CaCO3)) — sedimentary

Fossil Coral (Petoskey Stone / Rugose Coral)

Hexagonaria percarinata (Order: Rugosa, Fossilized Calcium Carbonate CaCO3)

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

Petoskey Stone (Fossilized Coral)

Hexagonaria percarinata

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

Clear Quartz Crystal

Quartz (Silicon Dioxide, SiO2)

Smoky quartz crystal cluster (Quartz, silicon dioxide (SiO₂), likely smoky quartz with milky quartz matrix) — mineral

Smoky quartz crystal cluster

Quartz, silicon dioxide (SiO₂), likely smoky quartz with milky quartz matrix

Epidote (Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))) — metamorphic

Epidote

Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with iron impurities

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

Milky quartz (likely quartz crystal fragment)

Quartz, silicon dioxide (SiO₂)

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

Amethyst

Amethyst (Silicon Dioxide - SiO2 with Iron impurities)

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

Garnet (Almandine)

Almandine (Fe3Al2(SiO4)3)

Red Garnet (Pyrope or Almandine (X3Y2(SiO4)3)) — mineral

Red Garnet

Pyrope or Almandine (X3Y2(SiO4)3)

Smoky Quartz (Herkimer-style) (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz (Herkimer-style)

Silicon Dioxide (SiO2)

Garnet in Matrix (Almandine Garnet (Fe3Al2(SiO4)3)) — metamorphic

Garnet in Matrix

Almandine Garnet (Fe3Al2(SiO4)3)

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Amethyst (Amethyst (Silicon Dioxide - SiO2 with impurities of iron)) — mineral

Amethyst

Amethyst (Silicon Dioxide - SiO2 with impurities of iron)

Clear Quartz (Silicon dioxide (SiO2)) — mineral

Clear Quartz

Silicon dioxide (SiO2)

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

Petoskey Stone (Fossilized Coral)

Hexagonaria percarinata

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

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

Quartz crystal fragment

Quartz (silicon dioxide, SiO₂)

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

Quartz Crystal (Smoky Quartz)

Silicon Dioxide (SiO2)