Chert (specifically Flint or Common Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Category
Browse sedimentary (microcrystalline silicate) specimens identified by the Rock Identifier community.
Chert (specifically Flint or Common Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (and Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (often called Flint in dark varieties)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Red Jasper
Chalcedony (SiO2) with iron inclusions
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions
Milky Quartz in Conglomerate Matrix
Silicon Dioxide (SiO2) within Clastic Sedimentary Rock
Jasper
Silicon dioxide (SiO2)
Orbicular Jasper (Ocean Jasper tendency)
Silicon Dioxide (SiO2) with impurities
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Jasper
Silicon dioxide (SiO2)
Chert (and Flint)
Silicon Dioxide (SiO2)
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Jasper
Chalcedony (cryptocrystalline quartz), SiO2
Red Jasper
Silicon dioxide (SiO2) with hematite impurities
Fossilized Crab Carapace (Concretion)
Decapoda (fossil), typically preserved in calcite or siderite concretion
Chert (variations include Flint)
Chert (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Red Jasper
SiO2 (Silicon Dioxide with Iron Oxide inclusions)
Jasper (Iron-rich)
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) impurities
Jasper River Pebble
Silicon Dioxide (SiO2) with iron oxide impurities
Imperial Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz with Mineral Inclusions
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Red Jasper
Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)
Red Jasper (Chert)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Red Jasper
Chalcedony (SiO2 with Iron inclusions)
Chert (Nodule)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (or Flint)
Chert (microcrystalline or cryptocrystalline quartz, SiO2)
Chert (Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (White Chert or Flint)
Microcrystalline or cryptocrystalline quartz (SiO2)
Chert (and Flint)
Chert (SiO2)
Red Jasper
Silicon dioxide (SiO2) with iron oxide inclusions
Kambaba Jasper
Stromatolite Jasper (Microcrystalline Quartz with Cyanobacteria fossile)
Coquina
Biogenic Limestone (Calcium Carbonate, CaCO3)
Carnelian Agate
Chalcedony (SiO2) with iron oxide inclusions
Yellow Jasper
Silicon Dioxide (SiO2) with Iron inclusions
Red Jasper
Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Banded Jasper (Carnelian Jasper)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Jasper with Quartz inclusions
Silicon Dioxide (SiO2) - Microcrystalline Chalcedony