Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Category
Sedimentary (Chemically Precipitated) Or Metamorphic
Browse sedimentary (chemically precipitated) or metamorphic specimens identified by the Rock Identifier community.
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Chert (Pebble)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Gravel Bit)
Microcrystalline silica (SiO2)
sedimentary
Chert (Jasper nodule)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Chert (Nodule)
Silicon Dioxide (SiO2)
sedimentary
Chert (Iron-rich)
Silicon Dioxide (SiO2) with Hematite (Fe2O3)
sedimentary
Chert (with Iron Staining)
Silicon Dioxide (SiO2 / Cryptocrystalline Quartz)
sedimentary
Chert (containing Quartz veins)
Chert (SiO2)
sedimentary
Moss Agate
SiO2 (Cryptocrystalline Quartz)
gemstone
Specular Hematite
Hematite (Iron Oxide, Fe2O3)
mineral
Moonstone
Orthoclase (Potassium Feldspar) - (K,Na)AlSi3O8
mineral
Agate (Plume/Moss variety)
Cryptocrystalline Quartz (SiO2) with iron/manganese inclusions
mineral
Quartz with Chalcopyrite and Pyrite
Silicon Dioxide (SiO2) with Copper Iron Sulfide (CuFeS2)
mineral
Chert (specifically Jasper/Flint)
Chert (SiO2)
sedimentary
Chert (Jasper/Mudstone variant)
Silicon Dioxide (SiO2)
sedimentary
Banded Agate
Silicon Dioxide (SiO2) - Chalcedony
mineral
Quartz Vein in Host Rock
Silicon dioxide (SiO2) veins in metamorphic/igneous host rock
igneous
Dalmatian Stone
Dalmatian Stone (formerly called Dalmatian Jasper)
igneous
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) with host rock (often Schist or Basalt)
mineral
Tiger Iron
Tiger Iron (Hematite, Red Jasper, and Chert/Tiger's Eye composite)
metamorphic
Quartz Pebble (Iron-stained)
Silicon Dioxide (SiO2)
sedimentary
Chert (specifically Pink/Tan Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Quartz Crystal
Quartz (SiO₂)
Mineral
Pyrite
Pyrite (FeS2)
Mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Limonite pseudomorph after pyrite
Goethite / Limonite pseudomorph after Pyrite (Fe3+O(OH) replacing FeS2)
mineral
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Jasper in Basalt Matrix
Silicon Dioxide (SiO2) with impurities; Chalcedony
sedimentary (secondary mineral) within igneous
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Aragonite Star Cluster
Aragonite (Calcium Carbonate, CaCO3)
mineral
Man-made Green Quartz (Lab-grown or Treated)
Silicon Dioxide (SiO2) with artificial coloration
mineral
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Chert Pebble (River Siltstone / Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Chert / Flint
Microcrystalline quartz (SiO2)
sedimentary
Chert (and Chert Breccia)
Silicon Dioxide (SiO2)
sedimentary
Chert (Chalky variety)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (often called Flint in dark varieties)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Yellow or Tan Chert)
Silicon Dioxide (SiO2)
sedimentary
Chert (with Quartz veins)
Chert (Microcrystalline Silica, SiO2)
sedimentary
Limestone
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Chert (specifically Gray Chert/Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary