Jasper
Silicon dioxide (SiO2)
sedimentary
Category
Sedimentary (Microcrystalline Silicate)
Browse sedimentary (microcrystalline silicate) specimens identified by the Rock Identifier community.
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Chalcedony (Yellow Chert / Agate)
Quartz (Silicon Dioxide - SiO2)
mineral
Agate (Chalcedony)
Silicon Dioxide (SiO2)
mineral
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Quartz Pebble (Chert/Chalcedony)
Silicon Dioxide (SiO2)
mineral
Red Jasper
Red Jasper (SiO2 with Fe2O3 impurities)
sedimentary
Chert (and Limestone Pebbles)
Silicon Dioxide (SiO2) / Sedimentary Microcrystalline Quartz
sedimentary
Jasper Arrowhead (Flint/Chert)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Gravelly, weathered sediment (likely glacial till)
Unconsolidated diamicton; mixed lithologies, commonly including quartz, feldspar, and weathered silicate rock fragments
sedimentary
Red Jasper (Tumbled)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary/mineral
Jasper
Silicon dioxide (SiO2)
sedimentary
Jasper
Microcrystalline quartz (SiO2)
sedimentary
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Brown Chert
Microcrystalline Quartz (SiO2)
sedimentary
Chalcedony (Tumbled Agate/Jasper)
Silicon dioxide (SiO2)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
mineral
Chert (Flint)
Cryptocrystalline Quartz (SiO2)
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides (Goethite)
sedimentary
Chert (varietal Flint)
Chert (SiO2)
sedimentary
Tumbled brecciated jasper
Silica-rich microcrystalline quartz/chalcedony (SiO₂), with iron-oxide and other mineral inclusions
mineral
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Red Jasper (Quartz)
Silicon Dioxide (SiO2) with Iron impurities
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
sedimentary
Chalcedony Geode Part (Agate/Quartz)
Silicon Dioxide (SiO2)
mineral
Ferruginous Quartz (Carnelian/Sardine Jasper)
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) impurities
sedimentary/mineral
Chert Nodules in Limestone / Fault Breccia
Silicon Dioxide (SiO2) in Calcium Carbonate (CaCO3) matrix
sedimentary
Brecciated Agate / Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Jasper (Iron-rich)
Silicon Dioxide (SiO2) with Fe2O3 (Hematite) inclusions
sedimentary
Chert (variously Flints)
Microcrystalline Quartz (SiO2)
sedimentary
Quartz (Agate/Chalcedony)
Silicon Dioxide (SiO2)
mineral
Chrysocolla in Quartz (Quantum Quattro variant)
Hydrated copper silicates (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O) often mixed with SiO2
mineral
Agate
Cryptocrystalline quartz (SiO2)
mineral
Chert (Flint)
Silicon dioxide (SiO2)
sedimentary
Jasper with Iron Staining
Silicon Dioxide (SiO2) with Hematite (Fe2O3)
sedimentary
Green Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Jasper
Microcrystalline quartz (SiO2)
sedimentary
Jasper Pebble
Microcrystalline Quartz (SiO2)
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
sedimentary