Chert
Silicon dioxide (SiO2)
Category
Browse sedimentary (microcrystalline silicate) specimens identified by the Rock Identifier community.
Chert
Silicon dioxide (SiO2)
Chert
Chert (microcrystalline quartz, SiO2)
Pietersite
Brecciated Crocidolite in Quartz (Chalcedony)
Jasper with Quartz inclusion
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Jasper (specifically Bloodstone/Heliotrope or Dark Green Jasper)
Cryptocrystalline Quartz (SiO2) with inclusions
Blue Chalcedony
Silicon Dioxide (SiO2)
Blue Lace Agate
Silicon Dioxide (SiO2) - Chalcedony / Quartz
Jasper
Silicon dioxide (SiO2) with iron oxide impurities
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Iron-stained Quartzite / Chert
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
Yellow Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions), SiO2
Agate
Chalcedony (Silicon Dioxide, SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with iron inclusions
Yellow Jasper
Silicon Dioxide (SiO2) with iron impurities
Carnelian Agate
Silicon Dioxide (SiO2)
Green Jasper
Jasper (Silicon Dioxide, SiO2)
Yellow Chert or Jasper
Microcrystalline Quartz (SiO2) with iron oxide inclusions
Agate
Silicon dioxide (SiO2)
Jasper
Jasper (Silicon Dioxide, SiO2)
Carnelian (Orange Chalcedony)
Silicon Dioxide (SiO2) with iron oxide impurities
Jasper (Red and Yellow)
Silicon Dioxide (SiO2) with iron oxide impurities
Red Jasper (Brecciated Jasper)
SiO2 (Silicon Dioxide) with Ferric Iron inclusions
Jasper
Silicon Dioxide (SiO2)
Chalcedony (Botryoidal Agate vein)
Chalcedony (Microcrystalline Quartz) - SiO2
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Ferruginous Chert
Silicon dioxide with iron oxide impurities (SiO2 + Fe2O3)
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Chert (Jasper)
Silicon Dioxide (SiO2) with impurities
Carnelian
Carnelian (Silicon Dioxide - SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with iron inclusions
Banded Flint (Chert)
Silicon Dioxide (SiO2)
Jasper and Quartz River Cobble
Silicon Dioxide (SiO2) with Hematite inclusions
White Chalcedony (Agate)
Silicon Dioxide (SiO2)
Chert (Red Jasper)
Silicon Dioxide (SiO2)
Jasper
Silicon dioxide (SiO2) with iron oxide inclusions
Jasper with Quartz inclusions
Silicon Dioxide (SiO2)
Chert (Flint)
Chert (Silica, SiO2)
Chalcedony (Common Agate)
Silicon Dioxide (SiO2)
Chert (White Chert / Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (specifically Flint or Dark Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert Breccia
Brecciated Microcrystalline Quartz (SiO2)