Jasper
Silicon dioxide (SiO2)
Category
Browse sedimentary (silica rich mineral variety) specimens identified by the Rock Identifier community.
Jasper
Silicon dioxide (SiO2)
Orthoclase Feldspar with Quartz
Orthoclase (KAlSi3O8)
Chert (Pebble)
Chert (Microcrystalline Quartz, SiO2)
Jasper
Silicon Dioxide (SiO₂)
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)
Banded Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Ocean Jasper
Orbicular Jasper (variety of Chalcedony/Quartz, SiO2)
Sandstone (likely Arkose or Quartz Sandstone)
Arenite (SiO2 + varied clasts)
Chert
Chert (Microcrystalline Quartz, SiO2)
Chert (Flint variety)
Microcrystalline Silica (SiO2)
Chert (Nodule)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Jasper
Silicon dioxide (SiO2)
Tree Agate
Silicon Dioxide (SiO2) with Chlorite inclusions
Moss Agate and Druzy Quartz Carving
Cryptocrystalline Silica (SiO2) with impurities
Red Jasper
Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Chert (and Chert-Jasper mix)
Microcrystalline Quartz (SiO2)
Pink Opal / Peruvian Opal
Hydrated amorphous silicon dioxide (SiO2·nH2O)
Yellow Jasper (Chert variant)
Silicon Dioxide (SiO2) with iron inclusions
Chert (White-Tan variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Blue Calcite (commonly sold as Caribbean Calcite)
Calcium Carbonate (CaCO3)
Chert (Jasper/Agate variety)
Cryptocrystalline Quartz (SiO2)
Schist/Phyllite
Metamorphic Schist (Chlorite Schist variety)
Red Jasper
Jasper (Silicon Dioxide, SiO2 with Fe2O3 inclusions)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Banded Jasper (Carnelian Jasper)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Chert Pebble (Yellow Jasper)
Microcrystalline Quartz (SiO2)
Yellow Jasper
Silicon Dioxide with iron inclusions (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Chert Pebble
Microcrystalline Quartz (SiO2)
Chert (Flint variety)
Microcrystalline Quartz (SiO2)
Sandstone
Arenite (SiO2 principal)
Jasper
Jasper (Silicon Dioxide, SiO2)
Chert / Flint
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions