Black Onyx
Onyx (Silicon Dioxide, SiO2)
Category
Browse sedimentary rock (technically a variety of chalcedony) specimens identified by the Rock Identifier community.
Black Onyx
Onyx (Silicon Dioxide, SiO2)
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
Yellow Jasper
Jasper (SiO2) with iron hydroxide inclusions
Jasper with Hematite inclusions
Silicon Dioxide (SiO2) with Fe2O3
Jasper pebble
Jasper (Silicon Dioxide, SiO2)
Yellow Agate
Chalcedony (cryptocrystalline Quartz), SiO2
Tree Agate
Silicon Dioxide (SiO2) with inclusions of manganese and iron oxides
Banded Agate (specifically Sardonyx Agate)
Silicon Dioxide (SiO2) - Chalcedony variety
Ocean Jasper (Orbicular Jasper)
Silicon Dioxide (SiO2) with iron and magnesium inclusions
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Mookaite Jasper
Silicified Radiolarite (SiO2)
Jasper
Jasper (Silica/Quartz) - SiO2
Chert (Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Black Veined Jasper (Spiderweb Jasper)
Silicon Dioxide (SiO2)
Dyed Agate Slice
Silicon Dioxide (SiO2) with artificial colorants
Agate
Silicon dioxide (SiO2) - variety Chalcedony
Jasper
Jasper (Silicon Dioxide, SiO2)
Yellow Chalcedony
Chalcedony (a cryptocrystalline variety of Quartz, SiO₂)
Red Jasper (possibly Orbicular)
Silicon Dioxide (SiO2) with iron oxide inclusions
Dalmation Stone (often called Dalmatian Jasper)
Peralkaline Rock (Microgranite/Aplite), SiO2 with inclusions of Arfvedsonite
Black Onyx
Onyx (Silicon Dioxide, SiO2)
Jasper
Silicon dioxide (SiO2)
Jasper
Jasper (Silicon Dioxide, SiO2)
Jasper (Iron-stained Quartzite/Chert)
Silicon Dioxide (SiO2) with iron oxide inclusions
Green Jasper
Silicon Dioxide (SiO2) with iron silicate inclusions
Yellow Jasper
Tectosilicates (SiO2) with Goethite/Iron oxide inclusions
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides
Blue Lace Agate
Silicon dioxide (SiO2) - Chalcedony variety
Blue Quartz (Blue Aventurine)
Silicon Dioxide (SiO2) with inclusions (typically crocidolite or dumortierite)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Heliotrope (Bloodstone)
Silicon dioxide (SiO2) with inclusions
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Chert (specifically Pink/Tan Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Agate (specifically a Yellow/Honey Agate)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Crazy Lace Agate
Silicon Dioxide (SiO2) - Chalcedony variety
Green Banded Agate
Agate (Variety of Chalcedony/Quartz), SiO2
Chalcedony
Chalcedony (a microcrystalline variety of Quartz, SiO2)
Black Onyx
Silicon Dioxide (SiO2) with cryptocrystalline structure
Red Jasper
Silicon dioxide with hematite impurities (SiO2 + Fe2O3)
Jasper (Red Jasper)
Silicon Dioxide (SiO₂)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Banded Agate
Silicon Dioxide (SiO2)