Carnelian
Carnelian (SiO2 - Silicon Dioxide with Iron Oxide impurities)
Category
Browse metamorphic (localized) or sedimentary specimens identified by the Rock Identifier community.
Carnelian
Carnelian (SiO2 - Silicon Dioxide with Iron Oxide impurities)
Jasper (Multi-color Chert)
Silicon dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Carnelian (a variety of Chalcedony)
Silicon Dioxide (SiO2) with iron oxide impurities
Chert (specifically Agate/Jasper variety)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Carnelian
Silicon dioxide (SiO2) with iron oxide impurities
Chalcedony in Host Rock
Chalcedony (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite or Iron Hydroxide inclusions
Red Jasper (possibly Wonderstone)
Silicon Dioxide (SiO2) with iron oxide inclusions
Yellow Jasper (within host rock)
Silicon Dioxide (SiO2) with iron hydroxides (Goethite)
Turquoise
CuAl6(PO4)4(OH)8·4H2O (Hydrated copper and aluminum phosphate)
Jasper River Pebble
Silicon Dioxide (SiO2)
Quartz Pebble (Chalcedony/Agate variety)
Silicon Dioxide (SiO2)
Yellow Quartz (Chalcedony/Agate)
Silicon Dioxide (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron oxide impurities
Quartz Geode
Silicon Dioxide (SiO2)
Chalcedony Nodule (Commonly known as Agate or Chert)
Microcrystalline Quartz (SiO2)
Black Jasper (Black Stone / River Pebble)
Silicon Dioxide (SiO₂), Opaque variety of Chalcedony
Yellow Jasper (Beach Pebble)
Silicon Dioxide (SiO2) with iron hydroxide impurities
Red Jasper
Jasper (a variety of Chalcedony, SiO₂)
Petrified Wood
Silicified Wood (SiO2)
Druzy Quartz Geode
Silicon Dioxide (SiO2)
Yellow Chalcedony (Carnelian/Yellow Agate)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Red Jasper (with Quartz inclusions)
Silicon Dioxide (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides (Goethite)
Quartz Geode
Silicon Dioxide (SiO2) in a concretionary structure
Turquoise
Turquoise (Hydrated phosphate of copper and aluminium) - CuAl6(PO4)4(OH)8·4H2O
Pink Dyed Agate (Pink Agate Slice)
Silicon Dioxide (SiO2) - Chalcedony / Cryptocrystalline Quartz
Banded Agate (River Stone)
Agate (Silicon Dioxide - SiO2)
Red Jasper
Opaque microcrystalline Quartz (SiO2 with Fe2O3 inclusions)
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides (Goethite)
Native Copper
Native Copper (Cu)
Yellow Jasper
Chalcedony (SiO2 with iron impurities)
Jasper
Silicon dioxide (SiO2)
Jasper (specifically Red Jasper or Iron-stained Chert)
Silicon dioxide (SiO2) with iron oxide inclusions
Blue Chalcedony
Chalcedony (Silicon Dioxide, SiO2)
Agate Slices and Clear Quartz Points
Agate (SiO2 Chalcedony) and Clear Quartz (SiO2 Crystalline)
Banded Agate (specifically Botryoidal/Orbicular Agate)
Silicon Dioxide (SiO2)
Druzy Quartz (on Geode Fragment)
Silicon Dioxide (SiO2)
Carnelian
Carnelian (a variety of Chalcedony, SiO2)
Carnelian Agate
Carnelian (Silicon Dioxide: SiO2) with iron oxide impurities