Chert (Limestone/Flint variant)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Category
Sedimentary Rock (Specifically A Chemical Sedimentary Rock, Or A Chert If Considered Purely Mineral Aggregate)
Browse sedimentary rock (specifically a chemical sedimentary rock, or a chert if considered purely mineral aggregate) specimens identified by the Rock Identifier community.
Learn about Sedimentary Rock (Specifically A Chemical Sedimentary Rock, Or A Chert If Considered Purely Mineral Aggregate) in the encyclopedia
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Dalmatian Stone
Peralkaline rhyolite
igneous
Chert
Chert (variant of microcrystalline quartz)
Sedimentary
Geode Nodules / Chert Pebble
Silicon Dioxide (SiO2) / Quartz concretion
sedimentary
Pebble
Lithic fragment (Quartzite or general rock pebble)
sedimentary
Chert (likely flint-bearing chert)
Microcrystalline quartz, SiO₂ (chalcedony/quartz aggregate)
sedimentary
Chert (Smooth River Pebble)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Aggregate Concrete
Anthropogenic Conglomerate (Technosol)
sedimentary
Chert Conglomerate (or Breccia)
Sedimentary Clastic Rock (variety: Ferruginous Chert Breccia)
sedimentary
Chert with Quartz Vein
Microcrystalline Quartz (SiO2)
sedimentary
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (often called Jasper or River Siltstone)
Chert (SiO2)
sedimentary
Chert Pebble with Quartz Veins
Microcrystalline Quartz (SiO2)
sedimentary
River Stone (Chert/Siltstone)
Cryptocrystalline Quartz (SiO2) with trace impurities
sedimentary
Hag Stone
Calcareous sedimentary rock (often Chert, Flint, or Limestone)
sedimentary
Pyrite-rich Ore
Pyrite (FeS2) with secondary minerals
mineral
Chert (Vuggy or Chalcedony)
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (and associated Flint)
Silicon Dioxide (SiO2)
sedimentary
Chert / Jasper
Silicon Dioxide (SiO2)
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (specifically Flint or Jasper variant)
Silicon Dioxide (SiO2)
sedimentary
Chert (Field Stone)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Mookaite Jasper
Siliceous sedimentary rock (variety of Jasper/Chert)
Sedimentary Rock
Chert Nodules in Sedimentary Rock
Microcrystalline Quartz (SiO2) within Clastic Matrix
sedimentary
Chert (Jasper/Mudstone variety with Oxidation)
Silicon dioxide (SiO2)
sedimentary
Chert (often called Flint or Chalcedony Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
metamorphic
Chert / Flint
Microcrystalline quartz (SiO2)
sedimentary
Sandstone Pebble with Iron Staining
Clastic Sedimentary Rock (primarily Quartz with Fe2O3 oxides)
sedimentary
Chert (specifically Black Chert or Flint)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Chert / Chalcedony Nodules
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Chert (often called Flint)
Chert (Cryptocrystalline Quartz, SiO2)
sedimentary
Red Jasper / Chert
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary
Chert (Quartzite-rich River Pebble)
Silicon Dioxide (SiO2)
sedimentary
Chert / Flint
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert with Quartz Veins
Microcrystalline Quartz (SiO2)
sedimentary
Chert (and Limestone Pebbles)
Silicon Dioxide (SiO2) / Sedimentary Microcrystalline Quartz
sedimentary