Rock Identifier

Category

Igneous, Sedimentary, And Metamorphic Mix

Browse igneous, sedimentary, and metamorphic mix specimens identified by the Rock Identifier community.

Hematite / Jasper (Iron(III) oxide (Fe2O3) in Quartz (SiO2)) — mineral / sedimentary

Hematite / Jasper

Iron(III) oxide (Fe2O3) in Quartz (SiO2)

mineral / sedimentary

Banded Gneiss (River Rock/Pebble) (Gneiss (specifically a banded variety, likely a orthogneiss or paragneiss depending on parent rock)) — Metamorphic Rock

Banded Gneiss (River Rock/Pebble)

Gneiss (specifically a banded variety, likely a orthogneiss or paragneiss depending on parent rock)

Metamorphic Rock

Quartz (Agate/Chalcedony variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Agate/Chalcedony variety)

Silicon Dioxide (SiO2)

Kambaba Jasper (Rhyolite (Volcanic rock) or Stromatolite (debated)) — Igneous/Sedimentary (debated)

Kambaba Jasper

Rhyolite (Volcanic rock) or Stromatolite (debated)

Igneous/Sedimentary (debated)

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Optical Calcite (Iceland Spar) (Calcium Carbonate (CaCO3)) — mineral

Optical Calcite (Iceland Spar)

Calcium Carbonate (CaCO3)

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

Agate (specifically a small Chalcedony nodule) (Agate (Cryptocrystalline variety of Quartz, SiO2)) — mineral

Agate (specifically a small Chalcedony nodule)

Agate (Cryptocrystalline variety of Quartz, SiO2)

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Quartz (Druzy/Macro-crystalline) (Silicon Dioxide (SiO2)) — mineral

Quartz (Druzy/Macro-crystalline)

Silicon Dioxide (SiO2)

Banded Agate (Chert/Chaldcedony) (Silicon Dioxide (SiO₂)) — mineral

Banded Agate (Chert/Chaldcedony)

Silicon Dioxide (SiO₂)

Hematite with Magnetite (Iron Oxide (Fe2O3)) — mineral

Hematite with Magnetite

Iron Oxide (Fe2O3)

Yellow Chalcedony (Agate Pebble) (Silicon Dioxide (SiO2)) — mineral

Yellow Chalcedony (Agate Pebble)

Silicon Dioxide (SiO2)

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Green Fluorite (Fluorite (Calcium Fluoride, CaF2)) — mineral

Green Fluorite

Fluorite (Calcium Fluoride, CaF2)

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

Quartz / Common Agate

Silicon Dioxide (SiO2)

Quartz / Quartz Geode fragment (Silicon Dioxide (SiO2)) — mineral

Quartz / Quartz Geode fragment

Silicon Dioxide (SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Petrified Wood (Silicified Wood (SiO2)) — metamorphic

Petrified Wood

Silicified Wood (SiO2)

Red Jasper (SiO2 (Silicon Dioxide with Iron inclusions)) — sedimentary

Red Jasper

SiO2 (Silicon Dioxide with Iron inclusions)

Quartzite (Quartzite (primarily SiO2)) — Metamorphic

Quartzite

Quartzite (primarily SiO2)

Pink Granite / Gneiss (Felsic Plutonic Rock (Granite) with Gneissic banding) — igneous / metamorphic

Pink Granite / Gneiss

Felsic Plutonic Rock (Granite) with Gneissic banding

igneous / metamorphic

Dalmatian Jasper (Dalmatian Stone) (Dalmatian Stone (primarily Feldspar, Quartz, and Arfvedsonite/Tourmaline)) — igneous

Dalmatian Jasper (Dalmatian Stone)

Dalmatian Stone (primarily Feldspar, Quartz, and Arfvedsonite/Tourmaline)

Pyrite in Quartz (Iron Sulfide (FeS2) in Silicon Dioxide (SiO2)) — mineral

Pyrite in Quartz

Iron Sulfide (FeS2) in Silicon Dioxide (SiO2)

Yellow Quartz (Citrine-colored Quartz) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine-colored Quartz)

Silicon Dioxide (SiO2)

Ruby (Corundum (mineral species), variety: Ruby (Al2O3 with Cr3+ as the chromophore)) — Mineral

Ruby

Corundum (mineral species), variety: Ruby (Al2O3 with Cr3+ as the chromophore)

Ruby (Corundum (Al2O3:Cr)) — mineral

Ruby

Corundum (Al2O3:Cr)

Quartz with Pyrite inclusions (Silicon Dioxide (SiO2) with Iron Sulfide (FeS2) inclusions) — mineral

Quartz with Pyrite inclusions

Silicon Dioxide (SiO2) with Iron Sulfide (FeS2) inclusions

Pink Sapphire (Corundum (Al2O3 with trace Chromium and Iron)) — mineral

Pink Sapphire

Corundum (Al2O3 with trace Chromium and Iron)

Orbicular Rhyolite (Rainforest Jasper) (Rhyolite containing Spherulites (SiO2 with impurities)) — igneous

Orbicular Rhyolite (Rainforest Jasper)

Rhyolite containing Spherulites (SiO2 with impurities)

Granite (Granite) — igneous

Granite

Granite

Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

Specular Hematite (Specularite) (Iron Oxide (Fe2O3)) — mineral

Specular Hematite (Specularite)

Iron Oxide (Fe2O3)

River Agate (Chert/Chalcedony) (Cryptocrystalline Quartz (SiO2)) — sedimentary

River Agate (Chert/Chalcedony)

Cryptocrystalline Quartz (SiO2)

Carnelian (Carnelian (SiO2 with Iron Oxide impurities)) — mineral

Carnelian

Carnelian (SiO2 with Iron Oxide impurities)

Dragon Blood Jasper (Epidote with Red Jasper inclusions (SiO2 and Ca2(Al,Fe)3(SiO4)3(OH))) — metamorphic

Dragon Blood Jasper

Epidote with Red Jasper inclusions (SiO2 and Ca2(Al,Fe)3(SiO4)3(OH))

Leopard Skin Jasper (Silicon Dioxide (SiO2) with impurities) — sedimentary

Leopard Skin Jasper

Silicon Dioxide (SiO2) with impurities