Chert (White-Tan variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Category
Browse sedimentary (physico chemical) specimens identified by the Rock Identifier community.
Chert (White-Tan variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Chert (Chert Pebble)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert (Jasper/Flint variant)
Silicon Dioxide (SiO2)
Pink Dyed Agate (Pink Agate Slice)
Silicon Dioxide (SiO2) - Chalcedony / Cryptocrystalline Quartz
Dyed Agate (Tumbled)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Banded Chert
Cryptocrystalline Quartz (SiO2)
Blue Kyanite
Kyanite (Al2SiO5)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Chert / Chalcedony
Silicon Dioxide (SiO2)
Quartz (Raw Chunk)
Silicon Dioxide (SiO2)
African Turquoise
African Turquoise (a trade name for Jasper, a variety of Chalcedony: SiO2)
Halite (Rock Salt)
Halite (Sodium Chloride, NaCl)
Chert (Field Stone/Pebble)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Bituminous Coal
Organic-rich sedimentary rock (Complex hydrocarbons)
Limestone
Calcium Carbonate (CaCO3)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Chert (specifically Red Chert or Jasper)
Microcrystalline Quartz (SiO2)
Red Chert (Jasper)
Microcrystalline Quartz (SiO2)
Chert (Jasper variety)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Banded Chert (or Flint)
Microcrystalline Quartz (SiO2)
Chert (Brown variety)
Silicon Dioxide (SiO2)
Mookaite Jasper
Radiolarite (Silica, SiO2)
Chert (Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Quartz Variety)
Silicon Dioxide (SiO2)
Chert (often called Flint or Jasper)
Chert (Microcrystalline or Cryptocrystalline Silica, SiO2)
Chert Pebble with Quartz Veining
Microcrystalline Quartz (SiO2)
Limestone
Calcium Carbonate (CaCO3)
Banded Chert (River Siltstone)
Microcrystalline Quartz (SiO2)
Glauconitic Sandstone (Greensand)
Glauconitic Sandstone ((K, Na)(Fe3+, Al, Mg)2(Si, Al)4O10(OH)2)
Chert (Hagstone/Adder Stone)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Black Chert/Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Limestone (Brecciated/Recrystallized)
Calcium Carbonate (CaCO3)
Sandstone Chert/Quartzite
Silicon Dioxide (SiO2) - Sedimentary Sandstone / Orthoquartzite
Conglomerate
Conglomerate (clastic sedimentary rock)
Conglomerate
Conglomerate (clastic sedimentary rock)
Aragonite Star Cluster
Aragonite (Calcium Carbonate, CaCO3)
Blue Kyanite
Kyanite (Al2SiO5)
Chert (varietal: Flint Pitted Pebble)
Cryptocrystalline Quartz (SiO2)