Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
Category
Browse sedimentary (secondary classification: cryptocrystalline quartz) specimens identified by the Rock Identifier community.
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
Chert (Flint)
Cryptocrystalline Quartz (SiO2)
Jasper with Quartz Veining
Silicon Dioxide (SiO2)
Agate Geode
Cryptocrystalline Quartz (SiO2)
Chert Breccia
Brecciated Chert (Microcrystalline Silica, SiO2)
Limonite (Iron Ore)
Hydrated ferric oxide (FeO(OH)·nH2O)
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
Chert / Flint Pebble
Cryptocrystalline Quartz (SiO2)
Agate (Chert/Chalcedony)
Cryptocrystalline Quartz (SiO2)
Chert / Jasper
Cryptocrystalline Quartz (SiO2)
Chert / Flint
Cryptocrystalline quartz (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Turquoise
Turquoise - CuAl6(PO4)4(OH)8·4H2O
Iron-stained Quartz (with Limonite/Hematite)
Silicon Dioxide (SiO2) with Iron Oxide inclusions (FeO(OH) or Fe2O3)
Chert (Flint variety)
Chert (SiO2)
Quartz Geode
Silicon dioxide (SiO2)
Geode (unopened)
Calcedony-lined Geode (SiO2)
Chalcedony (Agate/Jasper mix)
Cryptocrystalline Quartz (SiO2)
Ferruginous Quartz
Quartz (Silicon Dioxide, SiO2) with iron oxide inclusions
Jasper with Quartz inclusions
Silicon Dioxide (SiO2) - Microcrystalline Chalcedony
Turquoise
Turquoise (CuAl6(PO4)4(OH)8·4H2O)
Turquoise
Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O)
Banded Chert
Cryptocrystalline Quartz (SiO2)
Chert (Heart-shaped Pebble)
Cryptocrystalline quartz (SiO2)
Chalcedony
Cryptocrystalline Quartz (SiO2)
Turquoise
Hydrated phosphate of copper and aluminum - CuAl6(PO4)4(OH)8·4H2O
Carnelian
Carnelian (a variety of Chalcedony, SiO2)
Red Jasper
Jasper (Microcrystalline Quartz, SiO2)
Chalcedony (Agate)
Cryptocrystalline Quartz (SiO2)
Chalcedony Pebble
Cryptocrystalline Quartz (SiO2)
Graywacke with Quartz Veins
Argillaceous Sandstone (SiO2 composition in veins)
Yellow Quartz Pebble
Silicon Dioxide (SiO2)
Chert (Flint)
Cryptocrystalline Quartz (SiO2)
Banded Agate
Cryptocrystalline Quartz (SiO2)
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
Chert (Nodule)
Cryptocrystalline Quartz (SiO2)
Turquoise
Hydrated phosphate of copper and aluminium - CuAl6(PO4)4(OH)8·4H2O
Chert
Cryptocrystalline Quartz (SiO2)
Chert (Jasper/Agate)
Cryptocrystalline Quartz (SiO2)
Chert (Nodule)
Cryptocrystalline Quartz (SiO2)
Chalcedony Pebble
Cryptocrystalline Quartz (SiO2)
Chalcedony (Agate/Carnelian variety)
Cryptocrystalline Quartz (SiO2)