Red Jasper (possibly banded)
Silicon Dioxide (SiO2) with iron oxide inclusions
Category
Browse mineral (specifically a variety of chalcedony, which is microcrystalline quartz) specimens identified by the Rock Identifier community.
Red Jasper (possibly banded)
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper with Quartz Veining
Silicon Dioxide (SiO2) with impurities
Chert (specifically Jasper/Carnelian variety)
Microcrystalline quartz (SiO2)
Banded Agate (specifically Sardonyx Agate)
Silicon Dioxide (SiO2) - Chalcedony variety
Quartz (Rock Crystal)
Quartz (SiO₂ - Silicon Dioxide)
Jasper
Silicon Dioxide (SiO2)
Banded Agate (specifically Carnelian Agate)
Silicon dioxide (SiO2) - Chalcedony variety
Aventurine (likely Green Aventurine)
Quartz (SiO2) with included minerals (Fuchsite or Chlorite for green color)
Yellow Chalcedony (Agate)
Silicon Dioxide (SiO2)
Yellow Calcite
Calcium Carbonate (CaCO3)
Jasper with Epidote Vein
Silicon Dioxide (SiO2) with Calcium Aluminum Iron Silicate (Ca2(Al,Fe)3(SiO4)3(OH))
Crazy Lace Agate
Chalcedony (Silicon Dioxide, SiO2)
Orbicular Jasper (Ocean Jasper)
Silicon Dioxide (SiO2) with iron and magnesium inclusions
Jasper (specifically Brecciated or Agated Jasper)
Silicon Dioxide (SiO2) - Chalcedony with impurities
Jasper with Chalcedony
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Red Jasper
Silicon dioxide with hematite impurities (SiO2 + Fe2O3)
Gray Agate with Druzy Quartz Geode
Cryptocrystalline Quartz (SiO2)
Jasper
Silicon dioxide (SiO2)
Agate (specifically Carnelian Agate or Sardagate)
Silicon dioxide (SiO2) - variety of chalcedony
Green Jasper
Jasper (variety of Microcrystalline Quartz, SiO2)
Granodiorite
Granodiorite (Intermediate to Felsic Intrusive Rock)
Ocean Jasper (Orbicular Jasper)
Silicon Dioxide (SiO2)
Agate
Silicon dioxide (SiO2)
Agate Geode Node
Cryptocrystalline Quartz (SiO2)
Yellow Jasper (Chert variant)
Silicon Dioxide (SiO2) with iron inclusions
Yellow Jasper
SiO2 (Silicon Dioxide)
Agate
Chalcedony (cryptocrystalline variety of Quartz, SiO2)
Orbicular Jasper (Ocean Jasper tendency)
Silicon Dioxide (SiO2) with impurities
Dragon Blood Jasper
Epidote-rich Quartzite (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH))
Mookaite Jasper
Siliceous sedimentary rock (variety of Jasper/Chert)
Red Jasper
Silicon dioxide (SiO2) with iron inclusions
Chert (often called Flint or Chalcedony Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Banded Agate (specifically Botswana Agate appearance)
Silicon Dioxide (SiO2) - variety of Chalcedony
Quartz (Chert/Chalcedony variety)
Silicon Dioxide (SiO2)
Tumbled Green Jasper
Silicon Dioxide (SiO2) with mineral inclusions
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Moss Agate
Silicon Dioxide with inclusions (SiO2 + impurities)
Black Onyx (Tumbled)
Silicon Dioxide (SiO2)
Jasper
Silicon dioxide (SiO2)
Agate (Geode nodule fragment)
Chalcedony (cryptocrystalline variety of Quartz), SiO2
Blue Chalcedony
Silicon Dioxide (SiO2)