Agate
Agate (Silicon Dioxide, SiO2)
Category
Browse mineral, variety of chalcedony (microcrystalline quartz) specimens identified by the Rock Identifier community.
Agate
Agate (Silicon Dioxide, SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Iron inclusions
Yellow Quartz (Chalcedony)
Silicon Dioxide (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chalcedony (Botryoidal)
Silicon Dioxide (SiO2)
Blue Lace Agate
Agate (Variety of Chalcedony, SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
Chrysoprase
Chalcedony (Silicon Dioxide, SiO2), flavored by Nickel
Riverstone Jasper (Chalcedony)
Silicon Dioxide (SiO2)
Jasper
Jasper (Silicon Dioxide, SiO2)
Ocean Jasper (Orbicular Jasper)
Silicon Dioxide (SiO2) with inclusions
Carnelian (a variety of Chalcedony)
Silicon Dioxide (SiO2) with Iron Oxide impurities
Carnelian (a variety of Chalcedony)
SiO2 (Silicon Dioxide with Iron Oxide impurities)
Carnelian
Carnelian (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions
Carnelian (Orange Chalcedony)
Silicon Dioxide (SiO2) with iron oxide impurities
Dendritic Moss Agate
Chalcedony (Silicon Dioxide, SiO2) with inclusions
Yellow Jasper
Silicon Dioxide (SiO2) with iron inclusions
Red Jasper
Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)
Petrified Wood
Silicified wood (primarily SiO2)
Brown Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Carnelian (a variety of Chalcedony)
Silicon dioxide (SiO2) with iron oxide impurities
Dyed Agate Geode (Pink/Magenta)
Silicon Dioxide (SiO2) - variety of Chalcedony/Quartz
Jasper (Willow Creek/Desert style)
Silicon Dioxide (SiO2) with iron and clay impurities
Agate
Chalcedony (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Banded Calcite (Mexican Onyx)
Calcite (Calcium Carbonate, CaCO3)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Banded Onyx (Mexican Onyx / Travertine)
Calcite (CaCO3) - Banded Travertine
Blue Chalcedony (Tumbled)
Silicon Dioxide (SiO2)
Carnelian
Chalcedony (SiO2) with iron oxide impurities
Banded Agate (Carnelian type)
Silicon Dioxide (SiO2) - Cryptocrystalline Chalcedony
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Carnelian (a variety of Chalcedony)
SiO2 (Silicon Dioxide) primarily colored by iron oxide (Hematite)
Mixed collection of Quartz varieties, Chalcedony, and metamorphic pebbles
Mixed gemstones (primarily Silicon Dioxide - SiO2)
Moss Agate
Silicon Dioxide (SiO2) with inclusions
Dragon Vein Agate
Chalcedony (cryptocrystalline silica, SiO2) variety Agate
Red Jasper
Silicon dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Jasper River Pebble
Jasper (Silicon Dioxide, SiO2)
Banded Agate (Brazilian Agate Slice)
Chalcedony (Silicon Dioxide / SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with goethite or iron oxide inclusions