Chert (Gravel / Pebble)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Category
Sedimentary Rock (Technically Chert, A Microcrystalline Quartz)
Browse sedimentary rock (technically chert, a microcrystalline quartz) specimens identified by the Rock Identifier community.
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Chert (Commonly called Jasper or Flint)
Chert (SiO2)
sedimentary
Chert (often called Flint or River Rock)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert with Calcite Veining
Microcrystalline Quartz (SiO2) with Calcium Carbonate (CaCO3) veins
sedimentary
Kambaba Jasper
Stromatolite (Fossilized Algae within Microcrystalline Quartz)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
metamorphic
Chert / Quartz Pebble
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Puddingstone (Jasper Conglomerate)
Conglomerate (specific type: Jasper Conglomerate or Hertfordshire Puddingstone)
Sedimentary
Banded Chert / Flint
Microcrystalline Quartz (SiO2)
sedimentary
Red Jasper
CHERT (SiO2) with Hematite impurities
sedimentary
Agatized Chert / Chalcedony
Silicon Dioxide (SiO2)
sedimentary
Chert (and Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (often referred to as Flint or Jasper when pigmented)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Jasper / Chert (River Pebble)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Iron-stained Quartzite / Chert
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
metamorphic
Chert (with Quartz veins)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (containing Quartz/Chalcedony)
Silicon Dioxide (SiO2)
sedimentary
Botryoidal Chalcedony (Quartz Var.)
Silicon Dioxide (SiO2)
mineral
River Pebble (Quartzite or Chert)
Silicon Dioxide (SiO2)
metamorphic or sedimentary
Dendritic Agate
Dendritic Agate (Silicon Dioxide with Manganese or Iron Oxide inclusions, SiO2)
mineral
Chert (Nodule)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Wishing Stone (Basalt or Chert with Quartz Veins)
Basalt or microcrystalline Quartz (Chert) with localized hydrothermal Quartz (SiO2) veining
igneous or sedimentary
Quartzite Pebble
Metamorphic Quartzite (SiO2)
metamorphic
Banded Chert
Microcrystalline Quartz (SiO2)
sedimentary
Chert (or Flint)
Silicon dioxide (SiO2)
sedimentary
Chert (and Fossiliferous Chert)
Silicon Dioxide (SiO2)
sedimentary
Chert (Nodular Chert)
Silicon Dioxide (SiO2)
sedimentary
Banded Iron Formation (BIF)
Banded Iron Formation
Sedimentary Rock
Aggregate Concrete
Anthropogenic Conglomerate (Technosol)
sedimentary
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Amethyst Sage Agate
Silicon Dioxide (SiO2) with trace minerals (Manganese/Iron oxides)
mineral
Snowflake Obsidian
Hydrated Volcanic Glass with Cristobalite inclusions
igneous
Chert Arrowhead
Microcrystalline Quartz (SiO2)
sedimentary
Chert Pebble
Chert (SiO2)
sedimentary
Chert / Flint Nodules in Limestone
Silicon Dioxide (SiO2) within Calcium Carbonate (CaCO3)
sedimentary
Chert (White Chert)
Silicon Dioxide (SiO2)
sedimentary
Ocean Jasper
Orbicular Quartz (SiO2)
Mineral
Chert Nodules in Limestone
Cryptocrystalline Quartz (SiO2) within Calcium Carbonate (CaCO3)
sedimentary
Chert (var. Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Brown Flint)
Cryptocrystalline or Microcrystalline Quartz (SiO2)
sedimentary
Chert (with Limonite staining)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary