Red Jasper
Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)
Category
Browse sedimentary (microcrystalline quartz) specimens identified by the Rock Identifier community.
Red Jasper
Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)
Chalcedony Geode Part (Agate/Quartz)
Silicon Dioxide (SiO2)
Banded Agate (Geode Fragment)
Silicon Dioxide (SiO2) - Variety Agate
Ferruginous Quartz (Carnelian/Sardine Jasper)
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) impurities
Agate (Crazy Lace or Eye Agate)
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Orange Quartzite (Tumbled)
Quartzite (SiO2)
Chert
Chert (Microcrystalline Quartz, SiO2)
Flint (Chert variant)
Silica (SiO2) - Microcrystalline Quartz
Chert
Chert (Microcrystalline Quartz, SiO2)
River Pebble (Quartz/Sandstone)
Silicon Dioxide (SiO2) Mix
Chert (Jasper)
Silicon dioxide (SiO2) with impurities
Jasper
Silicon dioxide (SiO2)
Chert (Nodule)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Agate (Moss or Banded Agate variety)
Agate (Silicon Dioxide - SiO2)
Chert (Flint Nodules)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Quartz (Chert/Quartzite variant)
Silicon Dioxide (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Chalcedony in Limestone Host Rock
Silicon Dioxide (SiO2) within Calcium Carbonate (CaCO3)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Chert (Flint)
Chert (Microcrystalline Quartz, SiO2)
Chert (Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert (specifically Flint or Common Opal variant)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Ferruginous Quartzite (Chert)
Quartzite with Iron inclusions (SiO2 + Fe2O3)
Chert
Chert (Microcrystalline Quartz, SiO2)
Quartz (Microcrystalline variety)
Silicon Dioxide (SiO2)
Chert / Jasper
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Green Aventurine
Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
Red Jasper
Silicate (SiO2 with Hematite impurities)
Chert (Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert (Chalky Flint Node)
Chert (Microcrystalline Quartz, SiO2)
Chert (Nodule)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (often called Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert with Quartz Druzy
Microcrystalline Quartz (SiO2) with Drusy Quartz Coating
Black Jasper
Silicon Dioxide (SiO2) with inclusions
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
Red Jasper (River-worn)
Silicon Dioxide (SiO2) with Hematite inclusions
Chalcedony (Variety: Agate)
Silicon Dioxide (SiO2)
Chert (variations include Flint)
Sedimentary cryptocrystalline quartz (SiO2)
Chert (Limestone-hosted Pebble)
Sedimentary Cryptocrystalline Quartz (SiO2)