Chert (Jasper/Agate mix)
Microcrystalline Quartz (SiO2)
Category
Browse sedimentary (chemically precipitated) or metamorphic specimens identified by the Rock Identifier community.
Chert (Jasper/Agate mix)
Microcrystalline Quartz (SiO2)
Chert (Sedimentary Rock)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Eye Agate
Band Chalcedony (Silicon Dioxide, SiO2)
Banded Agate (Tumbled Chalcedony)
Silicon Dioxide (SiO2)
Banded Agate
Agate (Cryptocrystalline variety of Quartz, SiO2)
Pyrite
Iron Sulfide (FeS2)
Chert (Sea-worn Pebble)
Microcrystalline Quartz (SiO2)
Chert (variations like Flint or Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Iron-stained)
Microcrystalline Quartz (SiO2)
Chert (Nodule)
Chert (Silicon Dioxide, SiO2)
Quartzite Pebble (with Quartz veins)
Quartzite (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Yellow Ochre / Limonite
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
Quartz Pebble
Crystalline Silicon Dioxide (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2) with iron inclusions
Quartzite
Quartzite (SiO2)
Quartzite
Quartzite (primarily SiO2)
Pink Quartzite
Quartzite (primarily SiO2)
Quartzite (Yellow/Iron-stained Quartz)
Quartzite (primarily SiO2 with iron oxide impurities)
Quartz / Quartzite
Quartz (Silicon Dioxide, SiO2)
Quartzite Pebbler
Quartzite (primarily SiO2)
Quartz / Quartzite
Silicon Dioxide (SiO2)
Quartzite River Rock
Quartzite (primarily SiO2)
Orange Quartzite (Tumbled Beach Pebble)
Quartzite (primarily SiO2)
Blue Quartzite (Aventurine variety)
Silicon Dioxide (SiO2) with inclusions of Dumortierite or Magnesio-riebeckite
Dyed Howlite (often sold as Turquenite)
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
Limonite Concretion
Limonite (FeO(OH)·nH2O) Pseudomorph
Banded Quartz with Host Rock / Quartz Vein Pebble
Silicon Dioxide (SiO2) in Metamorphic Matrix
Quartzite Pebble
Quartzite (primarily SiO2)
Quartzite
Quartzite (composed primarily of Quartz, SiO2)
Quartzite
Quartzite (Primary mineral: Silicon Dioxide, SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartzite Pebble
Quartzite (primarily SiO2)
Quartz Sand Grain
Silicon Dioxide (SiO2)
Green Quartzite (Aventurine variety)
Silicon Dioxide (SiO2) with inclusions of Fuchsite
Chert (Iron-stained)
Chert (Silicon Dioxide, SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)