Chert (Vuggy or Fossilliferous)
Microcrystalline Quartz (SiO2)
sedimentary
Category
Sedimentary (Chemically Precipitated)
Browse sedimentary (chemically precipitated) specimens identified by the Rock Identifier community.
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Chert (Chert breccia)
SiO2 (Silicon Dioxide)
sedimentary
Chert (Brown Variety)
Silicon dioxide (SiO2)
sedimentary
Chert (Iron-stained)
Chert (SiO2 - Silicon Dioxide)
sedimentary
Chert (White Flint)
Silicon Dioxide (SiO2)
sedimentary
Banded Chert (Jasper)
Silicon Dioxide (SiO2)
sedimentary
Banded Iron Formation
Banded Iron Formation (BIF)
sedimentary
Chert / Flint
Cryptocrystalline quartz (SiO2)
Sedimentary
Satin Spar Selenite
Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Tumbled Carnelian
Silicon Dioxide (Variety of Chalcedony), SiO2
gemstone
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Geode (Quartz / Chalcedony Geode)
SiO2 (Silicon Dioxide)
sedimentary
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Jasper
Silicon Dioxide (Quartz variety, SiO2)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary
Carnelian (Polished Agate/Jasper)
SiO2 (Silicon Dioxide - Microcrystalline Quartz)
mineral
Tumbled Jasper and Tiger's Eye
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Chalcedony (Carnelian Agate)
Cryptocrystalline quartz (SiO2) with Iron Oxide inclusions
sedimentary
Malachite
Malachite - Cu2CO3(OH)2
mineral
Banded Agate
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Chert (Flint Nodules)
Microcrystalline Quartz (SiO2)
sedimentary
Turquoise
Turquoise (CuAl6(PO4)4(OH)8·4H2O)
mineral
Quartz Geode Fragment
Silicon Dioxide (SiO2)
sedimentary
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky or Common Quartz)
Silicon Dioxide (SiO2)
mineral
Opal
Hydrated Silica (SiO2·nH2O)
mineral
Yellow Chalcedony (Agate)
Silicon Dioxide (SiO2)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with goethite or limonite inclusions
sedimentary
Chalcedony (Agate/Carnelian)
Cryptocrystalline Silicon Dioxide (SiO2)
mineral
Agate (Chert/Chalcedony)
Silicon Dioxide (SiO2)
sedimentary
Chert (River Cobble)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Chert (and Limestone)
Silicon Dioxide (SiO2)
sedimentary
Gold Ore
Native Gold (Au)
mineral
Quartz (Grain)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral