Chert (Flint)
Chert (Microcrystalline Quartz, SiO2)
Category
Browse sedimentary (man made) specimens identified by the Rock Identifier community.
Chert (Flint)
Chert (Microcrystalline Quartz, SiO2)
Chert (and Flint)
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Chert (Flint)
Chert (Microcrystalline or cryptocrystalline Quartz - SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Field-collected Arrowhead-shaped Fragment)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Fossiliferous Limestone (Coquina)
Biogenic Limestone (Calcium Carbonate, CaCO3)
Chert (specifically Zebra Chert/Flint)
Silicon Dioxide (SiO2)
Chert (Nodule/Pebble)
Chert (Silicon Dioxide, SiO2)
Chert (Jasper/Flint variant)
Silicon Dioxide (SiO2)
Gold
Native Gold (Au)
Petoskey Stone
Hexagonaria percarinata (Fossilized Rugose Coral)
Bauxite
Bauxite (Al(OH)3, γ-AlO(OH), and α-AlO(OH))
Fossil Shark Tooth
Carcharocles or Lamniformes (order)
Chert (often called Flint)
Chert (Microcrystalline Quartz, SiO2)
Chert (Nodular or Massive Variety)
Cryptocrystalline Quartz (SiO2)
Chert (variations include Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Grey-Green Flint)
Microcrystalline silicon dioxide (SiO2)
Chert (and Jasper/Flint variety)
Cryptocrystalline Quartz (SiO2)
Asphalt aggregate
Human-made bituminous asphalt containing crushed silicate rock aggregate
Chert (Jasper / Quartz pebble)
Microcrystalline Quartz (SiO2)
Chert Arrowhead (Lithic Tool)
Microcrystalline quartz (SiO2) - Archeological lithic artifact
Jasper Marble
Silicon Dioxide (SiO2) with Impurities
Honey calcite
Calcite (calcium carbonate, CaCO₃)
Fossiliferous limestone
Bioclastic limestone, predominantly calcite (CaCO₃)
Chert (Iron-stained)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chalk
CaCO3 (primarily Calcium Carbonate), biogenic sedimentary rock
Polished brecciated jasper pendant
Jasper, an opaque microcrystalline variety of chalcedony (mostly SiO₂), with iron-oxide staining and likely brecciation
Limestone
Calcium Carbonate (CaCO3)
Chert / Flint
Cryptocrystalline quartz (SiO2)
Flint / Chert
Microcrystalline Quartz (SiO2)
Chert / Flint
Silicon Dioxide (SiO2)
Chert Pebble/Nodule
Chert (a microcrystalline or cryptocrystalline sedimentary form of quartz, SiO2)
Carnelian cabochon pendant
Carnelian, orange-red chalcedony (microcrystalline quartz, SiO₂)
Pyrite
Iron Sulfide (FeS2)
Vesicular basalt (possibly slag-contaminated)
Basalt; chiefly plagioclase and pyroxene, with possible olivine and secondary minerals
Flint
Silicon Dioxide (SiO2) - Chert variety
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Arrowhead Fragment)
Microcrystalline Quartz (SiO2)
Chert (specifically Black Chert or Flint)
Cryptocrystalline Quartz (SiO2)
Chert (specifically Yellow/Brown Chert or Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Megalodon Shark Tooth
Otodus megalodon