Chert / Flint Pebble
Cryptocrystalline Quartz (SiO2)
sedimentary
Category
Sedimentary (Secondary Classification: Cryptocrystalline Quartz)
Browse sedimentary (secondary classification: cryptocrystalline quartz) specimens identified by the Rock Identifier community.
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Chert / Jasper
Cryptocrystalline Quartz (SiO2)
sedimentary
Carnelian
Carnelian (a variety of Chalcedony, SiO2)
Mineral
Chert (Jasper/Flint variant)
Silicon Dioxide (SiO2)
sedimentary
Mixed collection of Quartz varieties, Chalcedony, and metamorphic pebbles
Mixed gemstones (primarily Silicon Dioxide - SiO2)
mineral
Banded Chert
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Heart-shaped Pebble)
Cryptocrystalline quartz (SiO2)
sedimentary
Chert (with Quartz Veining)
Microcrystalline silicon dioxide (SiO2)
sedimentary
Graywacke Pebble with Quartz Vein
Argillaceous Sandstone (Graywacke)
sedimentary
Quartz Geode
Quartz (Silicon Dioxide, SiO2) Geode
sedimentary
Chert / Flint Arrowheads and Artifacts
Cryptocrystalline quartz (SiO2)
sedimentary
Chert (Flint)
Cryptocrystalline Quartz (SiO2)
sedimentary
Banded Agate
Cryptocrystalline Quartz (SiO2)
sedimentary
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
mineral
Chert (Nodule)
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert / Quartz Pebble
Cryptocrystalline Quartz (SiO2)
sedimentary
Carnelian and White Quartz Bracelet
Silicon Dioxide (SiO2) - specifically Carnelian (Chalcedony) and Rock Crystal/Snow Quartz
mineral
Chrysocolla (with Malachite / Secondary Copper Minerals)
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O
mineral
Chert (Jasper variation)
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone (with Quartz veining)
Arenite (primarily SiO2)
sedimentary
Agate Nodules
Cryptocrystalline Quartz (SiO2)
mineral
Chalcedony (Agate)
Cryptocrystalline Quartz (SiO2)
mineral
Chalcedony Pebble
Cryptocrystalline Quartz (SiO2)
mineral
Chrysocolla in Matrix
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)
mineral
Agate Geode with Quartz
Silicon Dioxide (SiO2)
mineral
Chert / Flint
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Flint)
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Jasper/Agate)
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Nodule)
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Jasper / Petrified Wood)
Microcrystalline Quartz (SiO2)
sedimentary
Septarian Nodule (Micro-fragment)
Septarian Nodule / Concretion (CaCO3 + CaMg(CO3)2 + Quartz)
sedimentary
Chert (Brecciated or Veined)
Microcrystalline Quartz (SiO2)
sedimentary
Jasper with Quartz inclusions
Silicon Dioxide (SiO2) - Microcrystalline Chalcedony
sedimentary
Chert
Cryptocrystalline Quartz (SiO2)
sedimentary
Orca Agate
Chalcedony (Microcrystalline Quartz, SiO2)
sedimentary
Chert / Flint
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert Arrowhead
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert Arrowhead
Cryptocrystalline Quartz (SiO2)
sedimentary
Chalcedony (Agate/Carnelian)
Cryptocrystalline Quartz (SiO2)
mineral
Agate Geode
Cryptocrystalline Quartz (SiO2)
mineral
Quartz Geode with Agate
Silicon Dioxide (SiO2)
mineral
Yellow Quartz (Chalcedony)
Silicon Dioxide (SiO2)
mineral