Jasper
Silicon Dioxide (SiO2) with impurities
Category
Browse sedimentary (silicified fossiliferous chalcedony) specimens identified by the Rock Identifier community.
Jasper
Silicon Dioxide (SiO2) with impurities
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper (Red/Brown)
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper with Agate Inclusions
Silicon Dioxide (SiO2)
Jasper
Jasper (Silicate mineral, SiO2)
Jasper with Quartz Veining
Silicon Dioxide (SiO2) with iron oxide inclusions
Banded Jasper
Silicon Dioxide (SiO2) with iron oxide and clay impurities
Fancy Jasper
Silicon Dioxide (SiO2) with mineral inclusions
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
Jasper (likely Brown or Brecciated)
Jasper (Silicon Dioxide, SiO2)
Jasper-Agate
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Jasper
Silicon dioxide (SiO2)
Banded Calcite (often commercially sold as 'Mexican Onyx' or 'Honey Onyx')
Calcite (Calcium Carbonate, CaCO3)
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Dragon Blood Jasper
Quartz (SiO2) with Epidote and Piedmontite inclusions
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)
Yellow Quartz / Chalcedony Pebble
Silicon Dioxide (SiO2)
Orange Quartz (or Carnelian Chalcedony)
Silicon Dioxide (SiO2)
Chert / Flint Nodule
Cryptocrystalline quartz (SiO2)
Flint / Chert Nodules in Limestone
Cryptocrystalline Quartz (SiO2) within Carbonate Rock
Chert
Microcrystalline quartz (SiO2)
Chert / Flint
Silicon Dioxide (Microcrystalline Quartz, SiO2)
Flint / Chert
Silicon dioxide (Microcrystalline Quartz, SiO2)
Puddingstone (Jasper Conglomerate)
Quartzite Conglomerate (SiO2 matrix with Jasper/Quartz pebbles)
Chert (Nodule)
Chert (SiO2)
Quartz (Milky/Chalcedony variety)
Silicon Dioxide (SiO2)
Fossilized Bone
Permineralized Bone (Vertebrate Fossil)
Carnelian (Red Chalcedony)
Silicon Dioxide (SiO2)
Weathered quartz-rich stone, possibly fossiliferous limestone
Indeterminate; likely calcite-rich limestone (CaCO₃) or weathered quartz-bearing rock
Moss Agate
Chalcedony (Silicon Dioxide, SiO2) with inclusions
Tumbled chalcedony or quartz-rich stone
Microcrystalline quartz, SiO₂; possibly pale chert or chalcedony
Polished jasper/chalcedony pebble
Microcrystalline quartz (SiO₂), likely brecciated or iron-stained jasper
Agate (Grey Agate Slice)
Microcrystalline Quartz (SiO2)
Red Jasper (Opaque Chalcedony)
Jasper / Silicon Dioxide (SiO2) with Ferric Iron inclusions
Carnelian (Tumbled Chalcedony)
Silicon Dioxide (SiO2)
Banded Chalcedony (Agate)
Cryptocrystalline Quartz (SiO2)
Carnelian (Agate/Chalcedony)
Silicon Dioxide (SiO2)
Carnelian (Orange Chalcedony)
Silicon Dioxide (SiO2) with iron oxide impurities
Yellow Agate / Chalcedony
Silicon Dioxide (SiO2)
Agate (Turtle Carving)
Agate (Cryptocrystalline variety of Silica, SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Chalcedony (Agate/Carnelian)
Cryptocrystalline Quartz (SiO2)