Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Category
Mineral (Specifically A Variety Of Chalcedony, Which Is A Cryptocrystalline Quartz)
Browse mineral (specifically a variety of chalcedony, which is a cryptocrystalline quartz) specimens identified by the Rock Identifier community.
Green Onyx (Banded Calcite)
Banded Calcite / Aragonite (CaCO3)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Green Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Quartzite
Quartzite (SiO2)
metamorphic
Chert (Jasper/Agate variety)
Silicon Dioxide (SiO2)
sedimentary
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz / Vein Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Carnelian Agate
Chalcedony (Silicon Dioxide, SiO2) with Iron Oxide impurities
mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
White Quartz Pebble
Crystalline Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Chalcedony (Agate)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz (Tumbled/Polished Pebble)
Silicon Dioxide (SiO2)
mineral
Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Milky/Common Quartz)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Milky or Druzy Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Rose Quartz
SiO2 (Silicon Dioxide)
mineral
Flower Agate
Chalcedony (Silicon Dioxide) with Plume Inclusions, SiO2
mineral
Quartz / Quartz Cluster
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Kambaba Jasper
Stromatolite (Fossilized Algae)
sedimentary
Prase Quartz on Feldspar
Quartz (Silicon Dioxide, SiO2) with Hedenbergite inclusions on Potassium Feldspar (KAlSi3O8)
mineral
Moss Agate
Silicon Dioxide (SiO2) with inclusions of Manganese or Iron oxide
mineral
Red Tiger's Eye
Silicified Crocidolite (Quartz pseudo-morph after Crocidolite), SiO2
metamorphic
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Chert (and its variety Flint)
Silicon Dioxide (SiO2) - Microcrystalline or cryptocrystalline Quartz
sedimentary
Chert (often called Flint or Jasper locally)
Chert (Microcrystalline Quartz, Formula: SiO2)
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Rose Quartz
Quartz (Silicon Dioxide, SiO2)
mineral