Rock Identifier

Category

Organic Structure (Not A Rock)

Browse organic structure (not a rock) specimens identified by the Rock Identifier community.

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Fancy Jasper (Silicon dioxide (SiO2)) — sedimentary

Fancy Jasper

Silicon dioxide (SiO2)

Green Moss Agate (Agate (Silicon Dioxide, SiO2) with inclusions of hornblende or chlorite) — mineral

Green Moss Agate

Agate (Silicon Dioxide, SiO2) with inclusions of hornblende or chlorite

Carnelian (Orange Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Carnelian (Orange Chalcedony)

Silicon Dioxide (SiO2)

Amber (Succinite (specifically for Baltic amber); approximate formula C10H16O) — Mineraloid

Amber

Succinite (specifically for Baltic amber); approximate formula C10H16O

Coquina / Limonite-stained Limestone (Sedimentary Limestone with Iron Oxyhydroxide (FeO(OH)·nH2O)) — sedimentary

Coquina / Limonite-stained Limestone

Sedimentary Limestone with Iron Oxyhydroxide (FeO(OH)·nH2O)

Amber (Succinite) — mineral

Amber

Succinite

Amber (Succinite (with approximate formula C10H16O)) — mineraloid

Amber

Succinite (with approximate formula C10H16O)

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

Dendritic Agate

Silicon Dioxide with Manganese/Iron oxide inclusions (SiO2)

Druzy Quartz Geode (likely Smokey Quartz variety) (Silicon Dioxide (SiO2) - specifically a geode formation lined with druzy quartz crystals, with a likely brownish hue indicating smokey quartz.) — Mineral structure/Rock

Druzy Quartz Geode (likely Smokey Quartz variety)

Silicon Dioxide (SiO2) - specifically a geode formation lined with druzy quartz crystals, with a likely brownish hue indicating smokey quartz.

Mineral structure/Rock

Amber (Succinite (C10H16O)) — mineraloid

Amber

Succinite (C10H16O)

Chert (varietal Flint) (Chert (SiO2)) — sedimentary

Chert (varietal Flint)

Chert (SiO2)

Chert (varieties include Flint and Jasper) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (varieties include Flint and Jasper)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Flint) (Chert (SiO2)) — sedimentary

Chert (Flint)

Chert (SiO2)

Chert (Flint) (Chert (Microcrystalline Quartz, SiO2)) — sedimentary

Chert (Flint)

Chert (Microcrystalline Quartz, SiO2)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Chert (containing Calcite or Quartz inclusions) (Silicon Dioxide (SiO2) with varying mineral impurities) — sedimentary

Chert (containing Calcite or Quartz inclusions)

Silicon Dioxide (SiO2) with varying mineral impurities

Chert (and Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (and Flint)

Silicon Dioxide (SiO2)

Chert (specifically Flint Arrowhead) (Silicon dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (specifically Flint Arrowhead)

Silicon dioxide (SiO2) - Microcrystalline Quartz

Chert (Cherty Flint) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Cherty Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Flint) (Chert (Microcrystalline Quartz, SiO2)) — sedimentary

Chert (Flint)

Chert (Microcrystalline Quartz, SiO2)

Chert (Nodule) (Chert (Silicon Dioxide, SiO2)) — sedimentary

Chert (Nodule)

Chert (Silicon Dioxide, SiO2)

Amber (Succinite (fossilized resin)) — mineral

Amber

Succinite (fossilized resin)

Chert / Flint (Microcrystalline Quartz (SiO2)) — sedimentary

Chert / Flint

Microcrystalline Quartz (SiO2)

Chert (Dark Variety / Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Dark Variety / Flint)

Silicon Dioxide (SiO2)

Banded Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Banded Chert

Microcrystalline Quartz (SiO2)

Chert (Jasper variety) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Chert (Flint variety) (Microcrystalline context of Quartz (SiO2)) — sedimentary

Chert (Flint variety)

Microcrystalline context of Quartz (SiO2)

Black Jasper (Silicon Dioxide (SiO2) with Carbonaceous inclusions) — sedimentary

Black Jasper

Silicon Dioxide (SiO2) with Carbonaceous inclusions

Chert (with Limestone matrix) (Chert (Silica: SiO2)) — sedimentary

Chert (with Limestone matrix)

Chert (Silica: SiO2)

Pearl (Organic Mineral (CaCO3 with conchiolin)) — mineral

Pearl

Organic Mineral (CaCO3 with conchiolin)

Amber (Succinite (Organic Mineraloid) - C10H16O) — mineral

Amber

Succinite (Organic Mineraloid) - C10H16O

Coquina (Fossiliferous Limestone) (Coquina (Organic Clastic Limestone)) — sedimentary

Coquina (Fossiliferous Limestone)

Coquina (Organic Clastic Limestone)

Amber (Succinite (C10H16O)) — mineral

Amber

Succinite (C10H16O)

Man-made earbud charging case (Not a rock or mineral) (Acrylonitrile Butadiene Styrene (ABS) Plastic with electronic components) — Synthetic/Man-made object

Man-made earbud charging case (Not a rock or mineral)

Acrylonitrile Butadiene Styrene (ABS) Plastic with electronic components

Synthetic/Man-made object

Amber (Succinite (Resin)) — mineral

Amber

Succinite (Resin)

Amber (Succinite (with approximate formula C10H16O)) — mineraloid

Amber

Succinite (with approximate formula C10H16O)

Limestone (Concretionary or Tufa) (Calcium Carbonate (CaCO3)) — sedimentary

Limestone (Concretionary or Tufa)

Calcium Carbonate (CaCO3)

Amber (Succiniferous fossil resin (C10H16O)) — mineraloid

Amber

Succiniferous fossil resin (C10H16O)

Amber (Succinite (fossilized tree resin)) — mineral

Amber

Succinite (fossilized tree resin)

Moss Agate (Silicon Dioxide with inclusions (SiO2 + Mn/Fe/Chlorite)) — mineral

Moss Agate

Silicon Dioxide with inclusions (SiO2 + Mn/Fe/Chlorite)

Chert (Gravel) (Microcrystalline silica (SiO2)) — sedimentary

Chert (Gravel)

Microcrystalline silica (SiO2)