Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Category
Browse sedimentary (cryptocrystalline quartz) specimens identified by the Rock Identifier community.
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Chert (Tan/Grey variety)
Silicon Dioxide (SiO2)
Chert (Flint)
Chert (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) - variety Jasper
Chert (and Flint variant)
Silicon Dioxide (SiO2)
Chert (specifically Yellow Jasper variety)
Silicon Dioxide (SiO2)
River Stone (River Pebble)
Stream-rounded clast (likely Quartzite or Siltstone)
Green Chert (Jasper)
Silicon Dioxide (SiO2)
Chert / Jasper
Silicon Dioxide (SiO₂)
Carnelian
Chalcedony (Silicon Dioxide, SiO2)
Petrified Wood
Silicified Wood (primarily SiO2)
Chert Pebble
Microcrystalline silica (SiO2)
Jasper
Microcrystalline Quartz (SiO2)
Chert (often called Flint or River Pebble)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (White Chert/Flint)
Chert (Cryptocrystalline Silica or Microcrystalline Quartz, SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Yellow Jasper)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (with Quartz Vein)
Microcrystalline silica (SiO2)
Jasper Pebble
Microcrystalline Quartz (SiO2)
Chert (Yellow Jasper variant)
Microcrystalline Quartz (SiO2)
Chert (often called Flint or Jasper)
Microcrystalline Quartz (SiO2)
Chert (Flint Nodules)
Microcrystalline Quartz (SiO2)
Chert (Commonly known as Flint or River Pebble)
Microcrystalline Quartz (SiO2)
Chert (Nodule)
Microcrystalline Quartz (SiO2)
Echinoid Fossil in Flint or Chert Nodule
Echinoidea embedded in sedimentary silica (SiO2)
Yellow Jasper
Cryptocrystalline Quartz (SiO2) with iron inclusions
Yellow Jasper
Cryptocrystalline Quartz (SiO2 with Iron inclusions)
Banded Agate (specifically Carnelian Agate)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Chert (often referred to as Flint)
Chert (Microcrystalline or cryptocrystalline Quartz, SiO2)
Agate (Geode nodule fragment)
Chalcedony (cryptocrystalline variety of Quartz), SiO2
Chert / Flint Nodules
Chert (Cryptocrystalline variety of Quartz, SiO2)
Petrified Wood
Silicified Wood (mainly Quartz / SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Chert (Microcrystalline or cryptocrystalline Quartz, SiO2)
Chalcedony (Grey/White Agate)
Silicon Dioxide (SiO₂)
Black Flint
Chert (Microcrystalline Quartz, SiO2)
Carnelian Bead
Silicon Dioxide (Chalcedony variety), SiO2
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Chalcedony (Agate)
Silicon Dioxide (SiO2)
Chert (Nodule)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz