Yellow Chalcedony (common opal or chert variant)
Silicon Dioxide (SiO2)
Category
Browse mineral (variety of chalcedony) specimens identified by the Rock Identifier community.
Yellow Chalcedony (common opal or chert variant)
Silicon Dioxide (SiO2)
Rainbow Moonstone with Black Tourmaline
White Labradorite (Feldspar variety, (Na,Ca)(Al,Si)4O8) with Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Petrified Wood
Silicified Wood / Chalcedony (SiO2)
Ocean Jasper (Orbicular Jasper)
Spherulitic Chalcedony/Rhyolite (SiO2)
Pink Dyed Agate
Chalcedony (SiO2) with artificial dyes
Carnelian
SiO2 (Microcrystalline Quartz / Chalcedony)
Yellow Agate
Chalcedony (cryptocrystalline silica), SiO2
Carnelian Agate
Chalcedony (Silicon Dioxide, SiO2)
Black Onyx
Chalcedony (Silicon Dioxide, SiO2)
Banded Chalcedony (Agate)
Chalcedony (SiO2) - Cryptocrystalline Quartz
Carnelian
Chalcedony (Silicon Dioxide / SiO2)
Banded Agate (Gray Agate)
Silicon Dioxide (SiO2) - Chalcedony
Banded Agate (Brazilian Agate Slice)
Chalcedony (Silicon Dioxide / SiO2)
Banded Agate
Chalcedony (SiO2) with microcrystalline quartz
Carnelian Agate
Chalcedony (Silicon Dioxide, SiO2)
Carnelian
Chalcedony (Silicon Dioxide, SiO2)
Amber Agate / Carnelian
Chalcedony (Silicon Dioxide, SiO2)
Blue Dyed Agate
Chalcedony (SiO2) with artificial pigment
Chalcedony Nodule (Carnelian/Agate)
Chalcedony (Silicon Dioxide, SiO2)
Orca Agate
Chalcedony (Microcrystalline Quartz, SiO2)
Agate (Moss or Dendritic Agate)
Chalcedony (Silicon Dioxide, SiO2)
Dendritic Agate
Chalcedony (SiO2) with manganese/iron oxide inclusions
Chalcedony (Agate/Carnelian type)
Silicon Dioxide (SiO2)
Dalmatian Jasper (or Dalmatian Stone)
Dalmatian Stone (A peralkaline felsite composed of feldspar, quartz, and sodic amphibole)
Raw Corundum (Sapphire/Ruby variant)
Aluminum oxide (Al2O3)
Carnelian Agate
Chalcedony (SiO2) with iron oxide inclusions
Jadeite and Mixed Gemstones (Ruby, Sapphire, Emerald)
Jadeite (NaAlSi2O6), Corundum (Al2O3), Beryl (Be3Al2(Si6O18))
Banded Agate
Cryptocrystalline Quartz (SiO2)
Blue Dyed Agate
Silicon Dioxide (SiO2) with artificial pigment
Banded Agate
Cryptocrystalline Silica (SiO2)
Carnelian (Chalcedony)
Silicon Dioxide (SiO2)
Carnelian (Chalcedony)
Silicon Dioxide (SiO2)
Chrysocolla Chalcedony
Hydrated Copper Phyllosilicate (Cu,Al)2H2Si2O5(OH)4 + SiO2
Carnelian (Chalcedony)
Silicon Dioxide (SiO2)
Carnelian (Chalcedony)
Silicon Dioxide (SiO2)
Blue Chalcedony
Microcrystalline Quartz (SiO2)
Chalcedony (Agate)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Green Chalcedony
Silicon Dioxide (SiO2) with trace minerals
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
Chalcedony / Agate
Silicon Dioxide (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2)