Banded Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Category
Browse mineral (variety of chalcedony) specimens identified by the Rock Identifier community.
Banded Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Jasper
Jasper (Silicon Dioxide, SiO2)
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions), SiO2
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Quartz Geode/Cluster
Quartz (SiO2)
Chert (Flint / Chalcedony variety)
Microcrystalline Quartz (SiO2)
Carnelian Agate
Silicon Dioxide with Iron Oxide impurities (SiO2)
Iron-stained Quartz
Silicon Dioxide with Hematite/Limonite impurities (SiO2 + Fe2O3)
Jasper
Jasper (Silicon Dioxide, SiO2)
Jasper / Agate (Chalcedony)
Silicon dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper
Silicon dioxide (SiO2)
Botryoidal Chalcedony (Agate/Chert Nodule)
Chalcedony (SiO2)
Tumbled ocean jasper or orbicular jasper
Microcrystalline quartz (SiO₂), commonly with chalcedony, feldspar, and iron-oxide inclusions
Chert (with Quartz veins)
Chert (Microcrystalline Silicon Dioxide, SiO2)
Granite
Granite (Felsic Plutonic Rock)
Agate and Chalcedony Assortment
Silicon Dioxide (SiO2)
Yellow Quartz / Chalcedony
Silicon Dioxide (SiO2)
Iron-stained Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Limonite/Goethite) inclusions
Agate
Silicon Dioxide (Chalcedony), SiO2
Tumbled carnelian
Carnelian, a red-orange variety of chalcedony (microcrystalline quartz, SiO₂)
Blue Chalcedony
Silicon Dioxide (SiO2)
Fancy Jasper
Chalcedony (SiO2)
Flint or chert nodule
Microcrystalline quartz (chalcedony), SiO₂
White Agate (resembling Bone Chalcedony)
Cryptocrystalline Quartz (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Likely polished leopard-skin jasper or brecciated jasper
Jasper, an opaque microcrystalline variety of quartz (SiO₂), with iron-oxide and other mineral inclusions; exact variety cannot be confirmed from the image alone
Banded Black Onyx (Chalcedony)
Silicon Dioxide (SiO₂)
Ocean Jasper (Sea Jasper)
Spherulitic Chalcedony (SiO2)
Chalcedony (Agate / Jasper Specimen)
Silicon Dioxide (SiO2)
Quartz (Chert / Agate / Chalcedony)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Agate (or Chalcedony pebble)
Silicon Dioxide (SiO2)
Dark Agate / Chalcedony
Microcrystalline Quartz (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with iron inclusions
Yellow Jasper
Silicon dioxide (SiO2) with iron oxide impurities
Jasper (Green Jasper/River Stone)
Silicon Dioxide (SiO2) with impurities
Yellow Jasper
Jasper (Silicon Dioxide with Iron Oxide impurities, SiO2)
Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Yellow Jasper
Silicon Dioxide with Iron inclusions (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions