Rock Identifier

Category

Mineral (Or Mineraloid If Microcrystalline)

Browse mineral (or mineraloid if microcrystalline) specimens identified by the Rock Identifier community.

Banded Agate (with small Geode cavity) (Silicon Dioxide (SiO2) - Chalcedony variety) — mineral

Banded Agate (with small Geode cavity)

Silicon Dioxide (SiO2) - Chalcedony variety

Pink Dyed Agate (Banded Chalcedony) (Silicon dioxide (SiO2) - variety Chalcedony) — mineral

Pink Dyed Agate (Banded Chalcedony)

Silicon dioxide (SiO2) - variety Chalcedony

Red Jasper (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — mineral

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Carnelian (Carnelian (SiO2 - Silicon Dioxide with Hematite impurities)) — mineral

Carnelian

Carnelian (SiO2 - Silicon Dioxide with Hematite impurities)

Heliotrope (Bloodstone) (Cryptocrystalline Quartz (SiO2) with inclusions of Hematite (Fe2O3)) — mineral

Heliotrope (Bloodstone)

Cryptocrystalline Quartz (SiO2) with inclusions of Hematite (Fe2O3)

Banded Agate (Onyx type) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — mineral

Banded Agate (Onyx type)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Carnelian Agate (Silicon Dioxide (SiO2)) — mineral

Carnelian Agate

Silicon Dioxide (SiO2)

Jasper (Jasper (Silica/Quartz) - SiO2) — mineral

Jasper

Jasper (Silica/Quartz) - SiO2

Tiffany Stone (Bertrandite (Be4Si2O7(OH)2) mixed with Fluorite (CaF2), Opal, and Chalcedony) — mineral

Tiffany Stone

Bertrandite (Be4Si2O7(OH)2) mixed with Fluorite (CaF2), Opal, and Chalcedony

Blue Lace Agate (Tumbled) (Silicon Dioxide (SiO2)) — mineral

Blue Lace Agate (Tumbled)

Silicon Dioxide (SiO2)

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

Carnelian

Carnelian Chalcedony (SiO2 with iron oxide impurities)

Crazy Lace Agate (Silicon Dioxide (SiO2) - Chalcedony variety) — mineral

Crazy Lace Agate

Silicon Dioxide (SiO2) - Chalcedony variety

Agate Geode Node (Cryptocrystalline Quartz (SiO2)) — mineral

Agate Geode Node

Cryptocrystalline Quartz (SiO2)

Flower Agate (Cherry Blossom Agate) (Chalcedony (Silicon Dioxide) with Opaque Inclusions - SiO2) — mineral

Flower Agate (Cherry Blossom Agate)

Chalcedony (Silicon Dioxide) with Opaque Inclusions - SiO2

Banded Agate (Pink Chalcedony) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — mineral

Banded Agate (Pink Chalcedony)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

Tree Agate (Silicon Dioxide (SiO2)) — mineral

Tree Agate

Silicon Dioxide (SiO2)

Carnelian Agate (Silicon Dioxide (SiO2) - variety of Chalcedony) — mineral

Carnelian Agate

Silicon Dioxide (SiO2) - variety of Chalcedony

Agate (Polished Slice) (Banded Chalcedony (SiO2)) — mineral

Agate (Polished Slice)

Banded Chalcedony (SiO2)

Banded Agate (Agate (Cryptocrystalline Quartz, SiO2)) — mineral

Banded Agate

Agate (Cryptocrystalline Quartz, SiO2)

Blue Lace Agate (Cryptocrystalline Quartz (SiO2)) — mineral

Blue Lace Agate

Cryptocrystalline Quartz (SiO2)

Green Agate (Silicon Dioxide (SiO2) - Chalcedony variety) — mineral

Green Agate

Silicon Dioxide (SiO2) - Chalcedony variety

Agate (Banded Chalcedony (SiO2)) — mineral

Agate

Banded Chalcedony (SiO2)

Fire Agate (Silicon Dioxide (SiO2) with layers of Limonite/Goethite) — mineral

Fire Agate

Silicon Dioxide (SiO2) with layers of Limonite/Goethite

Carnelian (Carnelian (Varietal of Chalcedony, SiO2 with Iron Oxide impurities)) — mineral

Carnelian

Carnelian (Varietal of Chalcedony, SiO2 with Iron Oxide impurities)

Carnelian Agate (Carnelian (Silicon Dioxide: SiO2) with iron oxide impurities) — mineral

Carnelian Agate

Carnelian (Silicon Dioxide: SiO2) with iron oxide impurities

Chalcedony (specifically Agate or Water-worn Quartzite) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (specifically Agate or Water-worn Quartzite)

Silicon Dioxide (SiO2)

Banded Agate (Tumbled) (Silicon Dioxide (SiO2) - variety of Chalcedony) — mineral

Banded Agate (Tumbled)

Silicon Dioxide (SiO2) - variety of Chalcedony

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

Carnelian Agate

Silicon Dioxide (SiO2) with iron oxide impurities

Banded Agate (Agate (Cryptocrystalline variety of Silica, SiO2)) — mineral

Banded Agate

Agate (Cryptocrystalline variety of Silica, SiO2)

Banded Agate (specifically Eye Agate / Chalcedony) (Agate (Cryptocrystalline variety of Quartz, SiO2)) — mineral

Banded Agate (specifically Eye Agate / Chalcedony)

Agate (Cryptocrystalline variety of Quartz, SiO2)

Fancy Jasper (Silicon Dioxide (SiO2)) — mineral

Fancy Jasper

Silicon Dioxide (SiO2)

Carnelian (Carnelian (a variety of Chalcedony, SiO2) colored by iron oxide) — mineral

Carnelian

Carnelian (a variety of Chalcedony, SiO2) colored by iron oxide

Carnelian Agate (Silicon Dioxide (SiO2) - variety of Chalcedony) — Mineral

Carnelian Agate

Silicon Dioxide (SiO2) - variety of Chalcedony

Carnelian (Chalcedony) (Silicon Dioxide (SiO2) with Iron Oxide impurities) — mineral

Carnelian (Chalcedony)

Silicon Dioxide (SiO2) with Iron Oxide impurities

Chert (White Chert / Flint) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (White Chert / Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (often called Flint) (Microcrystalline to cryptocrystalline quartz (SiO2)) — sedimentary

Chert (often called Flint)

Microcrystalline to cryptocrystalline quartz (SiO2)

Orthoceratid Fossil in Limestone (Orthoceras (extinct genus of Nautiloid Cephalopod)) — sedimentary

Orthoceratid Fossil in Limestone

Orthoceras (extinct genus of Nautiloid Cephalopod)

Ironstone Concretion (Moqui Marble type) (Ferruginous Concretion (Fe2O3 / FeO(OH))) — sedimentary

Ironstone Concretion (Moqui Marble type)

Ferruginous Concretion (Fe2O3 / FeO(OH))

Jasper (Jasper (Silicon Dioxide, SiO2)) — sedimentary

Jasper

Jasper (Silicon Dioxide, SiO2)

Red Jasper (Silicon dioxide (SiO2)) — mineral

Red Jasper

Silicon dioxide (SiO2)

Carnelian (SiO2 (Silicon Dioxide), a variety of Chalcedony) — mineral

Carnelian

SiO2 (Silicon Dioxide), a variety of Chalcedony