Rock Identifier

Category

Mixed (Sedimentary, Igneous, And Metamorphic)

Browse mixed (sedimentary, igneous, and metamorphic) specimens identified by the Rock Identifier community.

Bumblebee Jasper (Calcite with Arsenic and Manganese oxides (technically a volcanic rock)) — igneous

Bumblebee Jasper

Calcite with Arsenic and Manganese oxides (technically a volcanic rock)

Ferruginous Quartz (Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)) — mineral

Ferruginous Quartz

Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)

Emerald (Beryl (Be3Al2(SiO3)6) with Chromium and/or Vanadium impurities) — mineral

Emerald

Beryl (Be3Al2(SiO3)6) with Chromium and/or Vanadium impurities

White Jade / White Chalcedony (Nephrite Jade (Ca2(Mg,Fe)5Si8O22(OH)2) or Chalcedony (SiO2)) — Mineral

White Jade / White Chalcedony

Nephrite Jade (Ca2(Mg,Fe)5Si8O22(OH)2) or Chalcedony (SiO2)

Serpentine (Serpentinite (rock), Serpentine group minerals (e.g., Antigorite, Lizardite, Chrysotile)) — Metamorphic rock

Serpentine

Serpentinite (rock), Serpentine group minerals (e.g., Antigorite, Lizardite, Chrysotile)

Metamorphic rock

Green Aventurine (Quartz (SiO2) with Fuchsite inclusions) — Mineral

Green Aventurine

Quartz (SiO2) with Fuchsite inclusions

Quartzite (Quartzite (primarily composed of SiO

O₂)) — Sedimentary Rock

Quartzite

Quartzite (primarily composed of SiO O₂)

Sedimentary Rock

Quartz (Silicon Dioxide (SiO₂)) — Mineral

Quartz

Silicon Dioxide (SiO₂)

Common Opal in Host Rock (Hydrated Silica (SiO2·nH2O)) — mineraloid

Common Opal in Host Rock

Hydrated Silica (SiO2·nH2O)

Ruby (Corundum (Al2O3 with chromium impurities)) — mineral

Ruby

Corundum (Al2O3 with chromium impurities)

Quartz Vein in Host Rock (Silicon Dioxide (SiO2) within Sedimentary or Igneous Matrix) — igneous

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) within Sedimentary or Igneous Matrix

Agate (Banded Chalcedony (SiO2)) — mineral

Agate

Banded Chalcedony (SiO2)

Red Jasper (Silicon Dioxide (SiO2) with Hematite impurities) — mineral

Red Jasper

Silicon Dioxide (SiO2) with Hematite impurities

Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

Emerald (Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities) — mineral

Emerald

Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities

Rhodochrosite (Manganese carbonate (MnCO3)) — mineral

Rhodochrosite

Manganese carbonate (MnCO3)

Epidote (Epidote - Ca2(Al,Fe)3(SiO4)3(OH)) — metamorphic

Epidote

Epidote - Ca2(Al,Fe)3(SiO4)3(OH)

Staurolite (Staurolite (Fe2+2Al9Si4O23(OH))) — metamorphic

Staurolite

Staurolite (Fe2+2Al9Si4O23(OH))

Bloodstone (Heliotrope) (Silicon Dioxide (SiO2) with inclusions of Chlorite or Actinolite) — sedimentary

Bloodstone (Heliotrope)

Silicon Dioxide (SiO2) with inclusions of Chlorite or Actinolite

Sandstone, Quartzite, and River Pebbles (Silicon Dioxide (SiO2) based Sedimentary/Metamorphic structures) — Sedimentary and Metamorphic

Sandstone, Quartzite, and River Pebbles

Silicon Dioxide (SiO2) based Sedimentary/Metamorphic structures

Sedimentary and Metamorphic

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Jasper (Iron-stained Chert) (Silicon Dioxide (SiO2)) — sedimentary

Jasper (Iron-stained Chert)

Silicon Dioxide (SiO2)

Included Quartz Beads (likely Phantom Quartz or Garden Quartz) (Quartz (SiO2) with various mineral inclusions) — Mineral

Included Quartz Beads (likely Phantom Quartz or Garden Quartz)

Quartz (SiO2) with various mineral inclusions

Graphite-veined Quartzite (Meta-sedimentary Quartzite with Carbonaceous/Graphitic Inclusions (SiO2 + C)) — metamorphic

Graphite-veined Quartzite

Meta-sedimentary Quartzite with Carbonaceous/Graphitic Inclusions (SiO2 + C)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Banded Calcite (often sold as Mexican Onyx) (Calcium Carbonate (CaCO3)) — mineral

Banded Calcite (often sold as Mexican Onyx)

Calcium Carbonate (CaCO3)

Quartz (Small Grains) (Silicon Dioxide (SiO2)) — mineral

Quartz (Small Grains)

Silicon Dioxide (SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

White Agate (Chalcedony) (Chalcedony (SiO2)) — mineral

White Agate (Chalcedony)

Chalcedony (SiO2)

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

Carnelian

Carnelian (Silicon Dioxide, SiO2)

Quartz Geode (Silicon dioxide (SiO2)) — mineral

Quartz Geode

Silicon dioxide (SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Pyrite (Fool's Gold) (Iron Sulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Pyrite (on Quartz matrix) (Iron Sulfide (FeS2)) — mineral

Pyrite (on Quartz matrix)

Iron Sulfide (FeS2)

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

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

Chalcedony (Agate)

Silicon Dioxide (SiO2)

Quartz (Milky or Druzy Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky or Druzy Quartz)

Silicon Dioxide (SiO2)

Cryptocrystalline Quartz (Agate/Chert) (Silicon dioxide (SiO2)) — sedimentary

Cryptocrystalline Quartz (Agate/Chert)

Silicon dioxide (SiO2)

Jasper with Epidote Vein (Silicon Dioxide (SiO2) with Calcium Aluminum Iron Silicate (Ca2(Al,Fe)3(SiO4)3(OH))) — sedimentary

Jasper with Epidote Vein

Silicon Dioxide (SiO2) with Calcium Aluminum Iron Silicate (Ca2(Al,Fe)3(SiO4)3(OH))

Kyanite (Kyanite (Al2SiO5)) — Mineral

Kyanite

Kyanite (Al2SiO5)

Granite Sand (Decomposed Granite) (Grus / Quartz-Feldspar Detritus) — sedimentary

Granite Sand (Decomposed Granite)

Grus / Quartz-Feldspar Detritus