Yellow Jasper
Silicon Dioxide (SiO2) with Iron Oxide impurities
Category
Browse mineral (variety of chalcedony) specimens identified by the Rock Identifier community.
Yellow Jasper
Silicon Dioxide (SiO2) with Iron Oxide impurities
Agate
Silicon dioxide (SiO2) - variety Chalcedony
Banded Agate (specifically Carnelian Agate)
Silicon dioxide (SiO2) - Chalcedony variety
Jasper
Silicon Dioxide (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with goethite or limonite inclusions
Red Jasper
Red Jasper (variety of Chalcedony, SiO₂)
Jasper with Quartz Vein
Silicon Dioxide (SiO2)
Blue Lace Agate
Silicon dioxide (SiO2) - Chalcedony variety
Jasper (likely Polychrome or Mookaite variants)
Silicon Dioxide (SiO2) with iron oxide and hydroxide inclusions
Tumbled reddish-brown stone, likely jasper
Jasper (microcrystalline quartz, SiO₂), possibly red jasper or jasper-rich chert
Agate Geode Node
Cryptocrystalline Quartz (SiO2)
Blue-dyed banded agate
Microcrystalline quartz (SiO₂), chalcedony variety
Banded Calcite (often sold as 'Mexican Onyx')
Calcite (Calcium Carbonate, CaCO3)
Polished/tumbled brown jasper or iron-rich chert
Microcrystalline quartz (SiO₂), commonly colored by hematite/goethite
Chalcedony (Yellow/Amber variety)
Silicon Dioxide (SiO2)
Tumbled chalcedony (likely gray/brown agate)
Microcrystalline quartz, SiO₂ (chalcedony; possible agate variety)
Jasper River Stone
Silicon Dioxide (SiO2) with iron oxide inclusions
Carnelian Agate
Chalcedony (Silicon Dioxide, SiO2)
Banded Agate
Silicon Dioxide (SiO2) - Chalcedony Variety
Jasper
Silicon Dioxide (SiO2)
Moss Agate
Chalcedony (SiO2) with inclusions of manganese or iron oxide
Blue Lace Agate
Silicon Dioxide (SiO2) - Variety of Chalcedony
Carnelian
Silicon Dioxide (Chalcedony variety), SiO2
Blue Lace Agate
Silicon Dioxide (SiO2) - Variety of Chalcedony
Carnelian Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
Agate (specifically Waterline or Onyx-type Agate)
Silicon Dioxide (SiO2) - variety Chalcedony
Yellow Jasper
Silicon dioxide with iron inclusions (SiO2)
Ocean Jasper
Spherulitic Chalcedony (SiO2)
Jasper (specifically Fancy or Polychrome Jasper)
Silicon Dioxide (SiO2) - Chalcedony
Quartz (Agate/Chalcedony)
Silicon Dioxide (SiO2)
Tumbled jasper pebble
Jasper, microcrystalline quartz (SiO₂) with iron-oxide impurities
Chalcedony (Agate Nodule)
Silicon Dioxide (SiO2)
Jasper (Green Jasper / Chert)
Silicon Dioxide (SiO2 with inclusions)
Jasper
Silicon Dioxide (SiO2)
Pink Dyed Agate
Silicon Dioxide (SiO2) - Variety Agate
Red Jasper
Jasper (Silicon Dioxide, SiO2 with Fe2O3 inclusions)
Yellow Jasper
Silicon Dioxide (SiO2)
Dendritic Agate (River Pebble)
Silicon Dioxide (SiO2) with Manganese or Iron oxide inclusions
Ocean Jasper
Orbicular Jasper (Silicon Dioxide, SiO2)
Chalcedony (Common Agate)
Silicon Dioxide (SiO2)
Tree Agate
Silicon Dioxide (SiO2)
Red Jasper (Opaque Chalcedony)
Jasper / Silicon Dioxide (SiO2) with Ferric Iron inclusions