Chert (Jasper/Flint variant)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Category
Browse sedimentary (microcrystalline quartz) specimens identified by the Rock Identifier community.
Chert (Jasper/Flint variant)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Tiger Iron
Banded Iron Formation (BIF)
Jasper
Silicon Dioxide (SiO2)
Red Jasper
Microcrystalline Quartz (SiO2) with Hematite inclusions
Jasper with Quartz vein
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (and its variety Flint)
Silicon dioxide (SiO2) / Microcrystalline quartz
Chert
Siliceous sedimentary rock (predominantly microcrystalline quartz, SiO2)
Brecciated Jasper
Sedimentary Chalcedony (SiO2)
Chert (Jasper variation)
Silicon dioxide (SiO2) - Microcrystalline Quartz
Ferruginous Chert
Microcrystalline Quartz (SiO2) with Iron Oxides
Petrified Wood
Silicified Wood (SiO2)
Kambaba Jasper
Stromatolite Jasper (Microcrystalline Quartz with Cyanobacteria fossile)
Dendritic Agate
Silicon Dioxide with Manganese/Iron oxide inclusions (SiO2)
Chert (with Quartz Druzy)
Microcrystalline Silica (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (Flint)
Chert (Microcrystalline or cryptocrystalline Quartz, SiO2)
Chert (specifically Flint Arrowhead)
Silicon dioxide (SiO2) - Microcrystalline Quartz
Chert (Yellow Jasper variant)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chalcedony
Cryptocrystalline Quartz (SiO2)
Petrified Wood
Silicified Wood (SiO2)
Jasper (Multi-color Chert)
Silicon Dioxide (SiO2) with impurities
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Chert (Iron-stained)
Chert (SiO2)
Jasper
Jasper (Silicon Dioxide, SiO2)
Chert / Jasper
Silicon Dioxide (SiO₂)
Yellow Jasper
Silicon Dioxide (SiO2) - variety Jasper
Yellow Quartzite or Yellow Jasper
Quartzite (primarily SiO2 with Iron oxide staining)
Banded Agate
Cryptocrystalline Quartz (SiO2)
Chert pebble
Cryptocrystalline Quartz (SiO2)
Chert (specifically Black Chert or Flint)
Cryptocrystalline Quartz (SiO2)
River Agate (Chert/Chalcedony)
Cryptocrystalline Quartz (SiO2)
Chert (often called Flint or Agate nodule)
Cryptocrystalline Quartz (SiO2)
Chert / Flint (River Pebble)
Cryptocrystalline Quartz (SiO2)
Chert
Cryptocrystalline Quartz (SiO2)
Red Jasper (possibly Mookaite)
Silicon Dioxide (SiO2) with Hematite inclusions
Jasper with Agate Inclusions
Silicon Dioxide (SiO2) - variety of Quartz/Chert
Petrified Wood
Silicified Wood (SiO2)
Red Jasper (possibly with Quartz or Hematite)
Silicon Dioxide (SiO2) with iron oxide impurities
Blue Chalcedony (likely dyed Agate)
Silicon Dioxide (SiO₂)
Quartz Geode/Cluster
Quartz (SiO2)
Chert (Flint)
Cryptocrystalline Quartz (SiO2)
Chert (Jasper-like)
SiO2 (Cryptocrystalline Quartz)