Carnelian / Chalcedony
Cryptocrystalline Quartz (SiO2)
Category
Browse mineral (specifically a cryptocrystalline variety of quartz) specimens identified by the Rock Identifier community.
Carnelian / Chalcedony
Cryptocrystalline Quartz (SiO2)
Chalcedony Geode Fragment
Cryptocrystalline Quartz (SiO2)
Banded Agate
Cryptocrystalline Quartz (SiO2)
Agate (Yellow Moss Agate)
Cryptocrystalline Quartz (SiO2)
Banded Agate (Lake Superior Agate style)
Cryptocrystalline Quartz (SiO2)
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
Banded Agate
Cryptocrystalline Quartz (SiO2)
Banded Agate
Cryptocrystalline Quartz (SiO2)
Chalcedony Geode / Agate Nodule
Cryptocrystalline Quartz (SiO2)
Snakeskin Agate
Cryptocrystalline Quartz (SiO2)
Green Agate
Cryptocrystalline Quartz (SiO2)
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
Banded Agate (Tumbled)
Cryptocrystalline Quartz (SiO2)
Banded Agate
Cryptocrystalline Quartz (SiO2)
Banded Agate
Cryptocrystalline Quartz (SiO2)
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
Banded Chalcedony (Agate)
Cryptocrystalline Quartz (SiO2)
Banded Agate
Cryptocrystalline Quartz (SiO2)
Black Onyx
Cryptocrystalline Quartz (SiO2)
Blue Onyx (Agate)
Cryptocrystalline Quartz (SiO2)
Agate
Cryptocrystalline Quartz (SiO2)
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
Agate (Geode nodule)
Cryptocrystalline Quartz (SiO2)
Dyed Blue Agate
Cryptocrystalline Quartz (SiO2)
Chalcedony (Yellow Agate)
Cryptocrystalline Quartz (SiO2)
Black Onyx
Cryptocrystalline Quartz (SiO2)
Agate
Chalcedony (cryptocrystalline quartz)
Banded Agate
Cryptocrystalline Quartz (SiO2)
Chalcedony (Quartz Pebble)
Cryptocrystalline Quartz (SiO2)
Chalcedony (Agate/Carnelian)
Cryptocrystalline Quartz (SiO2)
Agate (specifically Oco or Banded Agate)
Agate (a variety of Chalcedony), SiO2 (Silicon Dioxide)
Jasper
Jasper (Silicon Dioxide, SiO2)
Yellow Quartz (Citrine or Iron-stained Quartz)
Silicon Dioxide (SiO2)
Citrine (Yellow Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Chalcedony (Agate/Carnelian)
Silicon Dioxide (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz (Specifically Clear to Smoky Quartz point)
Silicon Dioxide (SiO2)
Quartz (specifically Rose or Smoky tinted Quartz)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)