Rock Identifier

Category

Metamorphic (Localized) Or Sedimentary

Browse metamorphic (localized) or sedimentary specimens identified by the Rock Identifier community.

Yellow Jasper (Chalcedony (SiO2)) — sedimentary

Yellow Jasper

Chalcedony (SiO2)

Red Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

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

Red Jasper (possibly Carnelian)

Silicon Dioxide (SiO2) with Hematite impurities

Yellow Jasper (Chalcedony (SiO2) with iron oxide inclusions) — mineral

Yellow Jasper

Chalcedony (SiO2) with iron oxide inclusions

Carnelian (Orange Chalcedony) (Silicon Dioxide (SiO2) with iron oxide impurities) — mineral

Carnelian (Orange Chalcedony)

Silicon Dioxide (SiO2) with iron oxide impurities

Amethyst with Marcasite accents (Amethyst (Silicon Dioxide SiO2) and Marcasite (Iron Sulfide FeS2)) — mineral

Amethyst with Marcasite accents

Amethyst (Silicon Dioxide SiO2) and Marcasite (Iron Sulfide FeS2)

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

Red Jasper (possibly Carnelian) (Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)) — sedimentary

Red Jasper (possibly Carnelian)

Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)

Banded Agate (Agate (Silicon Dioxide, SiO2)) — mineral

Banded Agate

Agate (Silicon Dioxide, SiO2)

Botryoidal Lace Agate (Agate (Silicon Dioxide, SiO2)) — mineral

Botryoidal Lace Agate

Agate (Silicon Dioxide, SiO2)

Quartz Geode (Crystalline Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Crystalline Silicon Dioxide (SiO2)

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

Jasper

Silicon Dioxide (SiO2) with impurities

Red Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

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

Red Jasper (Opaque Chalcedony)

Silicon Dioxide (SiO2) with Hematite impurities

Banded Agate / Chalcedony (Silicon Dioxide (SiO2) with trace impurities) — mineral

Banded Agate / Chalcedony

Silicon Dioxide (SiO2) with trace impurities

Carnelian (SiO2 (Chalcedony with iron oxide impurities)) — mineral

Carnelian

SiO2 (Chalcedony with iron oxide impurities)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Red Jasper (Jasper (Silicon Dioxide) - SiO2) — sedimentary

Red Jasper

Jasper (Silicon Dioxide) - SiO2

Red Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Carnelian Agate (Carnelian (Silicon Dioxide: SiO2)) — mineral

Carnelian Agate

Carnelian (Silicon Dioxide: SiO2)

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

Dendritic Agate

Silicon Dioxide with Manganese/Iron oxide inclusions (SiO2)

Chalcedony (Agate/Carnelian variant) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Agate/Carnelian variant)

Silicon Dioxide (SiO2)

Geode (unopened) (Calcedony-lined Geode (SiO2)) — sedimentary

Geode (unopened)

Calcedony-lined Geode (SiO2)

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

Carnelian Agate

Carnelian (Silicon Dioxide, SiO2)

Jasper (Silicon dioxide (SiO2) with impurities) — sedimentary

Jasper

Silicon dioxide (SiO2) with impurities

Dendritic Agate or Tree Agate (Silicon Dioxide (SiO2) with impurities of manganese or iron oxide) — mineral

Dendritic Agate or Tree Agate

Silicon Dioxide (SiO2) with impurities of manganese or iron oxide

Zircon (Zircon (ZrSiO4)) — Mineral

Zircon

Zircon (ZrSiO4)

Quartz (Quartz (SiO2)) — Mineral

Quartz

Quartz (SiO2)

Orange Calcite (Calcite (CaCO3)) — Mineral

Orange Calcite

Calcite (CaCO3)

Muscovite Mica (Muscovite (KAl2(AlSi3O10)(OH)2)) — Mineral

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)

Veined Pebble (likely a Quartz-Veined Pebble) (Pebble with Mineral Vein (e.g., Quartz Vein in a Chert/Mudstone Pebble)) — Sedimentary Rock (possibly conglomerate or breccia with a quartz vein)

Veined Pebble (likely a Quartz-Veined Pebble)

Pebble with Mineral Vein (e.g., Quartz Vein in a Chert/Mudstone Pebble)

Sedimentary Rock (possibly conglomerate or breccia with a quartz vein)

Fossil Shark Tooth (Cretaceous white shark type) (Squalicorax (commonly known as Crow Shark)) — Organic specimen (fossil)

Fossil Shark Tooth (Cretaceous white shark type)

Squalicorax (commonly known as Crow Shark)

Organic specimen (fossil)

Magnetic Hematite (Magnetized Hematite (an iron oxide mineral, Fe2O3, that has undergone magnetization)) — Mineral

Magnetic Hematite

Magnetized Hematite (an iron oxide mineral, Fe2O3, that has undergone magnetization)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

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

Chalcedony (Agate Pebble)

Silicon Dioxide (SiO2)

Quartz Geode or Nodular Quartz (Silicon Dioxide (SiO2) in Host Matrix) — mineral

Quartz Geode or Nodular Quartz

Silicon Dioxide (SiO2) in Host Matrix

Jasper (Iron-rich) (Silicon Dioxide (SiO2) with Fe2O3 (Hematite) impurities) — sedimentary

Jasper (Iron-rich)

Silicon Dioxide (SiO2) with Fe2O3 (Hematite) impurities

Chalcedony (specifically Common Opal or Agate variant) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (specifically Common Opal or Agate variant)

Silicon Dioxide (SiO2)

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

Clear Quartz Cluster

Silicon Dioxide (SiO2)

Jasper (Jasper (Cryptocrystalline Quartz, SiO2)) — sedimentary

Jasper

Jasper (Cryptocrystalline Quartz, SiO2)