Jasper pebble
Silicon dioxide (SiO2) with iron oxide inclusions
sedimentary (secondary classification: cryptocrystalline quartz)
Category
Sedimentary (Secondary Classification: Cryptocrystalline Quartz)
Browse sedimentary (secondary classification: cryptocrystalline quartz) specimens identified by the Rock Identifier community.
Learn about Sedimentary (Secondary Classification: Cryptocrystalline Quartz) in the encyclopedia
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Sandstone
Arenite (Secondary classification based on grain size)
sedimentary
Sandstone Cobble
Arenite (Secondary classification based on grain size)
sedimentary
Dalmatian Stone
Dalmatian Jasper (a misnomer) / Perthitic Feldspar Rock
igneous
Zebra Jasper
Tektite variety of Silicon Dioxide (SiO2) with inclusions
sedimentary
Druzy Chalcedony (Agate Geode)
Silica (SiO2) - Cryptocrystalline Quartz with druzy macrocrystalline quartz
mineral
Chalcedony (Agate/Carnelian pebbles)
Cryptocrystalline Quartz (SiO2)
mineral
Lunar Feldspathic Breccia
Lunar Meteorite (Feldspathic Regolith Breccia)
igneous
Chert (with Quartz Veining)
Microcrystalline Quartz (SiO2)
sedimentary
Lunar Highlands Breccia (Meteorite)
Lunar Feldspathic Breccia
igneous
Red Siltstone
Siltstone (composed mainly of SiO2 and Fe2O3)
sedimentary
Chert (River Pebble)
Cryptocrystalline Quartz (SiO2)
sedimentary
Chalcedony in Limestone Host Rock
Silicon Dioxide (SiO2) within Calcium Carbonate (CaCO3)
Mineral within Sedimentary Rock
Breciated Chert
Brecciated Chert (Microcrystalline Quartz, SiO2)
sedimentary
Banded Agate
Cryptocrystalline Quartz (SiO2)
sedimentary
Yellow Quartz (Chert/Chalcedony)
Silicon Dioxide (SiO2) with iron inclusions
mineral
Red Jasper (possibly with Quartz or Hematite)
Silicon Dioxide (SiO2) with iron oxide impurities
sedimentary or metamorphic
Agate
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Jasper/Agate variety)
Cryptocrystalline Quartz (SiO2)
sedimentary
Jasper
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert pebble
Cryptocrystalline Quartz (SiO2)
sedimentary
Agate
Cryptocrystalline Silicon Dioxide (SiO2)
mineral
Banded Chert
Cryptocrystalline Quartz (SiO2)
sedimentary
Rough Agate/Chert Nodules
Cryptocrystalline Quartz (SiO2)
sedimentary
Quartz (Chert/Chalcedony Variety)
Silicon Dioxide (SiO2)
mineral
Chert (Jasper/Flint variety)
Silicon dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Jasper (specifically Bloodstone/Heliotrope or Dark Green Jasper)
Cryptocrystalline Quartz (SiO2) with inclusions
sedimentary
Mixed River Stones and Agates
Mixed Silicates and Ironstones (primarily SiO2 and Fe2O3)
sedimentary
Lunar Meteorite
Lunar Feldspathic Breccia
igneous
Jasper or Chert with Quartz Vugs
Silicon Dioxide (SiO2)
sedimentary
Chert (with Quartz Vein)
Microcrystalline silica (SiO2)
sedimentary
Chert Pebble with Quartz Veins
Microcrystalline Quartz (SiO2)
sedimentary
Banded Agate
Agate (Cryptocrystalline Quartz, SiO2)
mineral
Chert (often called Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Chalcedony on Matrix
Silicon Dioxide (SiO2)
mineral
Chert (with Quartz Veining)
Microcrystalline Quartz (SiO2)
sedimentary
Carnelian
Carnelian (Cryptocrystalline Quartz, SiO2)
mineral
Chert (Arrowhead Preform or Flake)
Microcrystalline Quartz (SiO2)
sedimentary
Chalcedony
Chalcedony (SiO2)
mineral
Chert (Pebble)
Microcrystalline to Cryptocrystalline Quartz (SiO2)
sedimentary
Chert with Calcite Veining
Microcrystalline Quartz (SiO2) with Calcium Carbonate (CaCO3) veins
sedimentary