Dyed Agate
Silicon dioxide, SiO2
Mineral (Chalcedony)
Category
Mineral (Chalcedony
Browse mineral (chalcedony specimens identified by the Rock Identifier community.
Carnelian
Carnelian (SiO2 with Iron oxide impurities)
Mineral (Chalcedony variety)
Agate (Dyed Blue)
SiO2 (Silicon Dioxide)
Mineral (Chalcedony/Quartz variety)
Botryoidal Chalcedony
Silicon Dioxide (SiO2)
mineral
Chalcedony
Chalcedony (SiO2)
mineral
Brecciated Jasper
Silicon Dioxide (SiO2) with Hematite impurities
sedimentary
Chalcedony (Agate/Carnelian variant)
Silicon Dioxide (SiO2)
mineral
Chalcedony (Agate/Carnelian)
Cryptocrystalline Silicon Dioxide (SiO2)
mineral
Flower Agate (Plume Agate)
Chalcedony (Silicon Dioxide) with Spherulitic Inclusions - SiO2
mineral
White Chalcedony (likely Common Opal or Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Chalcedony
Chalcedony (SiO2)
mineral
Yellow Chalcedony
Chalcedony (a cryptocrystalline variety of Quartz, SiO₂)
Mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Chalcedony or Chert/Jasper with secondary mineral staining
SiO2 (for chalcedony/quartz) with possible secondary copper minerals (e.g., CuSiO3·nH2O for chrysocolla, Cu2(CO3)(OH)2 for malachite) or iron oxides/hydroxides.
Mineral, potentially a rock with chalcedony/jasper.
Chalcedony (Agate/Chert variety)
Silicon Dioxide (SiO2)
mineral
Botryoidal Chalcedony (Agate/Chert Nodule)
Chalcedony (SiO2)
mineral
Pink Chalcedony
Silicon Dioxide (SiO2)
mineral
Chalcedony in Matrix
Silicon Dioxide (SiO2)
mineral
Chalcedony (Quartz Var.)
Silicon Dioxide (SiO2)
mineral
Botryoidal Chalcedony with Calcite
Chalcedony (SiO2 with accessory minerals, likely CaCO3)
Mineral
Chalcedony (Banded/Mottled Variety)
Chalcedony (a cryptocrystalline variety of Quartz, SiO2)
Mineral
Mixed Chalcedony and Jasper Bracelet (possibly 'Ocean Jasper' or similar banded variety for brown beads, and blue/grey Chalcedony for the translucent beads)
Chalcedony (SiO2), Jasper (SiO2 with impurities)
Mineral (specifically a cryptocrystalline variety of Quartz)
Chalcedony (variations like Agate or Jasper)
Chalcedony (SiO₂ - microcrystalline quartz)
Mineral
Chalcedony (Agate)
Silicon Dioxide (SiO2)
mineral
Chalcedony
Silicon dioxide (SiO2) - Microcrystalline quartz
mineral
Black Onyx
Cryptocrystalline Quartz (SiO2 with organic/iron impurities)
mineral
Chalcedony on Matrix
Silicon Dioxide (SiO2)
mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Chalcedony (Agate)
Silicon Dioxide (SiO2)
mineral
Chalcedony (Moonstone-like Agate)
Silicon Dioxide (SiO₂)
mineral
Yellow Chalcedony (Agate)
Silicon Dioxide (SiO2)
mineral
Chalcedony
Silicon Dioxide (SiO2)
mineral
Chalcedony
Chalcedony (SiO2)
mineral
Chalcedony
Silicon Dioxide (SiO2)
mineral
Chalcedony (Common Opal variant or Agate)
Silicon Dioxide (SiO2)
mineral
Chalcedony Nodule in Matrix
Silicon Dioxide (SiO2)
mineral
Quartz Geode (partially formed/chalcedony with iron staining)
Quartz (SiO2) with Chalcedony (cryptocrystalline quartz) and likely Iron Oxides/Hydroxides
Mineral/Sedimentary Rock Feature
Chalcedony
Cryptocrystalline Quartz (SiO2)
mineral
Chalcedony
Chalcedony (SiO2)
mineral
Agate
SiO2
mineral
Bloodstone
Heliotrope (Chalcedony)
mineral
Chalcedony
Cryptocrystalline Quartz (SiO2)
mineral