Rock Identifier

Category

Mineral (Organic)

Browse mineral (organic) specimens identified by the Rock Identifier community.

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

Chert (varietal Flint)

Chert (SiO2)

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

Chert (with Limestone matrix)

Chert (Silica: SiO2)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

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

Black Jasper

Silicon Dioxide (SiO2) with Carbonaceous inclusions

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

Chert (specifically Flint Arrowhead)

Silicon dioxide (SiO2) - Microcrystalline Quartz

Chert (Jasper/River Stone) (Silicon dioxide (SiO2) - Microcrystalline quartz) — sedimentary

Chert (Jasper/River Stone)

Silicon dioxide (SiO2) - Microcrystalline quartz

Bituminous Coal (Bituminous coal (Organic Sedimentary Rock)) — sedimentary

Bituminous Coal

Bituminous coal (Organic Sedimentary Rock)

Ambergris (Ambergris (Coprolite-adjacent organic substance)) — Organic (Geological interest)

Ambergris

Ambergris (Coprolite-adjacent organic substance)

Organic (Geological interest)

Dyed Pink Quartzite (Jadeite Simulant) (Silicon Dioxide (SiO2) with organic dye) — metamorphic

Dyed Pink Quartzite (Jadeite Simulant)

Silicon Dioxide (SiO2) with organic dye

Ambergris (Ambergris (Coprolite-adjacent/Organic secretion)) — mineraloid

Ambergris

Ambergris (Coprolite-adjacent/Organic secretion)

Pearl (Aragonite and Conchiolin (CaCO3 + organic protein)) — mineraloid

Pearl

Aragonite and Conchiolin (CaCO3 + organic protein)

Bituminous Coal (Organic sedimentary rock (humic coal)) — sedimentary

Bituminous Coal

Organic sedimentary rock (humic coal)

Lignite (Brown Coal) (Humic Lignite (Carbonaceous sedimentary rock)) — sedimentary

Lignite (Brown Coal)

Humic Lignite (Carbonaceous sedimentary rock)

Petrified Wood (Silicified Wood (primarily SiO₂ - Silicon Dioxide)) — metamorphic

Petrified Wood

Silicified Wood (primarily SiO₂ - Silicon Dioxide)

Petrified Wood (Silicified Wood (primarily SiO2 - Silicon Dioxide)) — sedimentary

Petrified Wood

Silicified Wood (primarily SiO2 - Silicon Dioxide)

Fossiliferous Limestone (Coral Fossil) (Scleractinian Coral in Calcium Carbonate (CaCO3)) — sedimentary

Fossiliferous Limestone (Coral Fossil)

Scleractinian Coral in Calcium Carbonate (CaCO3)

Amber (Succinite (Approximate formula: C10H16O)) — Mineraloid

Amber

Succinite (Approximate formula: C10H16O)

Popcorn (Zea mays everta (P. Wilson) (Botanical name for the corn variety)) — Organic/Biogenic

Popcorn

Zea mays everta (P. Wilson) (Botanical name for the corn variety)

Organic/Biogenic

Chert (Jasper variation) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper variation)

Microcrystalline Quartz (SiO2)

Chert (Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper)

Microcrystalline Quartz (SiO2)

Yellow Chert (Sedimentary cryptocrystalline quartz (SiO2)) — sedimentary

Yellow Chert

Sedimentary cryptocrystalline quartz (SiO2)

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

Chert (Jasper/Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

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

Chert (specifically Flint)

Silicon Dioxide (SiO2)

Shungite (Non-crystalline carbon (Fullerenes / Carbon-60)) — metamorphic

Shungite

Non-crystalline carbon (Fullerenes / Carbon-60)

Chert (Arrowhead Debitage or Spall) (Silicon Dioxide (SiO₂)) — sedimentary

Chert (Arrowhead Debitage or Spall)

Silicon Dioxide (SiO₂)

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

Chert (Basanite / Flint)

Microcrystalline Quartz (SiO2)

Chert (Jasper/Flint variety) (Microcrystalline silicon dioxide (SiO2)) — sedimentary

Chert (Jasper/Flint variety)

Microcrystalline silicon dioxide (SiO2)

Black Mountain Stone (Seiryu Stone) (Limestone with Calcite veins (CaCO3)) — sedimentary

Black Mountain Stone (Seiryu Stone)

Limestone with Calcite veins (CaCO3)

Chert (specifically Flint or Chalcedony nodule) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Flint or Chalcedony nodule)

Microcrystalline Quartz (SiO2)

Chert / Flint (Chert (Cryptocrystalline Silica, SiO2)) — sedimentary

Chert / Flint

Chert (Cryptocrystalline Silica, SiO2)

Yellow Jasper (Chert) (Silicon Dioxide (SiO2) with iron inclusions) — sedimentary

Yellow Jasper (Chert)

Silicon Dioxide (SiO2) with iron inclusions

Chert (Nodule) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Nodule)

Microcrystalline Quartz (SiO2)

Chert (Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper)

Microcrystalline Quartz (SiO2)

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

Chert (Iron-rich)

Silicon Dioxide (SiO2) with Hematite (Fe2O3)

Chert (and Flint variant) (Microcrystalline or cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (and Flint variant)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Chert (and Flint) (Silicon dioxide (SiO2) - Microcrystalline or Cryptocrystalline Quartz) — sedimentary

Chert (and Flint)

Silicon dioxide (SiO2) - Microcrystalline or Cryptocrystalline Quartz

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

Chert (Gravel)

Microcrystalline silica (SiO2)

Chert (Yellow Jasper variant) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (Yellow Jasper variant)

Microcrystalline quartz (SiO2)

Chert (variously Flint) (Chert (Microcrystalline or cryptocrystalline Quartz, SiO₂)) — sedimentary

Chert (variously Flint)

Chert (Microcrystalline or cryptocrystalline Quartz, SiO₂)

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

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

Chert (Jasper/Flint variety)

Microcrystalline Quartz (SiO2)

Chert (Tan/Yellow variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Tan/Yellow variety)

Microcrystalline Quartz (SiO2)