Quartz Geode
Silicon Dioxide (SiO2)
Category
Browse mineral_variety_of_chalcedony specimens identified by the Rock Identifier community.
Quartz Geode
Silicon Dioxide (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with hydrated iron oxide impurities (Goethite)
Carnelian Agate
Silicon Dioxide (SiO2) with Iron Impurities
Agate (specifically Carnelian or Honey Agate)
Silicon Dioxide (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Jasper (with Manganese or Iron inclusions)
Silicon Dioxide (SiO2)
Agatized Chert / Chalcedony
Silicon Dioxide (SiO2)
Banded Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with impure Iron oxides
Jasper (Red/Brown Variety)
Jasper (Silicon Dioxide, SiO2 plus Iron Oxide impurities)
Banded Calcite (often sold as 'Mexican Onyx' or 'Green Onyx')
Calcite (CaCO3)
Chalcedony (Agate/Chert variety)
Silicon Dioxide (SiO₂)
Agate (Common Chalcedony)
Silicon Dioxide (SiO2)
Blue Chalcedony (Blue Lace Agate variety)
Silicon Dioxide (SiO₂)
Blue Lace Agate
Cryptocrystalline Quartz (SiO2)
Green Jasper with Quartz veins
Jasper (Silicon Dioxide, SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Limonite inclusions
Green Onyx (Banded Calcite)
Travertine (CaCO3 - Calcium Carbonate)
Jasper
Jasper (Silicon Dioxide, SiO2)
Chalcedony (specifically Agate or Carnelian variety)
Cryptocrystalline Silica (SiO2)
Picture Jasper
Silicon Dioxide (SiO2) with mineral inclusions
Amethyst (Agate/Chalcedony variety)
Silicon Dioxide (SiO2) with iron impurities
Jasper (Tumbled)
Silicon Dioxide (SiO₂)
Ocean Jasper (Orbicular Jasper)
Silicon Dioxide (SiO2) with iron and other impurities
Carnelian
SiO2 (Silicon Dioxide) - Translucent reddish-brown variety of Chalcedony
Crazy Lace Agate
Silicon dioxide (SiO2) - a variety of banded Chalcedony (cryptocrystalline quartz)
Jasper
Silicon Dioxide (SiO2)
Moss Agate
Silicon Dioxide with inclusions (SiO2 + impurities)
Banded Calcite (often commercially called 'Mexican Onyx')
Calcium Carbonate (CaCO3)
Carnelian
Carnelian (Silicon Dioxide: SiO2)
Carnelian
Chalcedony (cryptocrystalline quartz), SiO2 (Silicon Dioxide)
Banded Black Onyx (Chalcedony)
Silicon Dioxide (SiO₂)
Jasper Agate (specifically Brecciated Jasper with Agate inclusions)
Silicon Dioxide (SiO2)
Geode (Unopened)
Siliceous Septarian Concretion / Geode (SiO2)
Jasper with Quartz Veining
Silicon Dioxide (SiO2) with impurities
Agate (Moss or Banded Agate variety)
Agate (Silicon Dioxide - SiO2)
Carnelian Agate
Silicon Dioxide with Iron Oxide impurities (SiO2)
Moss Agate
Silicon Dioxide (SiO2) with inclusions
Jasper (specifically Fancy Jasper or Bloodstone variety)
Silicon Dioxide (SiO2) with impurities (Iron oxides/silicates)
Jasper (likely a variety of Yellow or Mustard Jasper)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Indian Agate
Silicon Dioxide (SiO2) - Microcrystalline Quartz