Chert / Flint
Microcrystalline Quartz (SiO2)
Category
Browse sedimentary (cryptocrystalline quartz) specimens identified by the Rock Identifier community.
Chert / Flint
Microcrystalline Quartz (SiO2)
Chert (specifically Silex or Flint)
Microcrystalline Quartz (SiO2)
Chert (Concretion or Nodular Variety)
Microcrystalline Quartz (SiO2)
Chert (Arrowhead Fragment)
Microcrystalline Quartz (SiO2)
Red Jasper with Quartz Veins
Microcrystalline Quartz (SiO2) with Hematite impurities
Chert
Microcrystalline quartz (SiO2)
Chert (specifically Red Chert/Jasper)
Microcrystalline Quartz (SiO2)
Chert Arrowhead (Lithic Artifact)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2)
Petrified Wood
Silicified Wood (SiO2)
Flint / Chert
Microcrystalline Quartz (SiO2)
Chert Nodule
Microcrystalline Quartz (SiO2)
Chert (Chalcedony/Flint)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline quartz (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Chert or Jasper
Microcrystalline Quartz (SiO2)
Chert with Jasper and Quartz
Microcrystalline Quartz (SiO2)
Chert / Flint
Chert (Cryptocrystalline Silica, SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Agate (Carnelian Agate with Quartz Matrix)
Silicon Dioxide (SiO2)
Chert (Yellow Jasper)
Cryptocrystalline Silicon Dioxide (SiO2)
Chert (River Pebble)
Microcrystalline Quartz (SiO2)
Chert Pebble
Microcrystalline Quartz (SiO2)
Chert Nodule
Microcrystalline Quartz (SiO2)
Chert (Yellow Jasper/River Pebble)
Microcrystalline Quartz (SiO2)
Chert (with Limestone matrix)
Microcrystalline Quartz (SiO2)
Petrified Wood / Red Jasper
Silicified wood (primarily Silicon Dioxide, SiO2)
Jasper
Microcrystalline Quartz (SiO2)
Yellow Chalcedony / Carnelian
Silicon Dioxide (SiO2)
Tumbled brown jasper pebble
Jasper, microcrystalline quartz (SiO₂), commonly with iron-oxide impurities
Chert (often called Flint)
Silicon Dioxide (SiO2)
Green Jasper
Microcrystalline Quartz (SiO2)
Chert Pebble
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Flint Nodules)
Microcrystalline quartz (SiO2)
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
Chert (Flint variety)
Chert (SiO2)
Banded Agate Pebble
Chalcedony (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Yellow Jasper
Silicon dioxide (SiO2) with iron oxide impurities
Agate
Silicon Dioxide (SiO2)