Red Jasper
Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)
Category
Browse mineral, variety of chalcedony (microcrystalline quartz) specimens identified by the Rock Identifier community.
Red Jasper
Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)
Chert (Gravel pebble)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chalcedony (River Stone)
Silicon Dioxide (SiO2)
Dragon Blood Jasper
Epidote-containing Quartz Chalcedony (SiO2 with Ca2(Al, Fe)3(SiO4)3(OH))
Picture Jasper (specifically Biggs or Deschutes variety)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Banded Chert
Chert (a microcrystalline variety of quartz, SiO2 with minor impurities)
Chert (Iron-stained)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Smooth River Pebble)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (specifically Pink/Tan Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Arrowhead Artifact)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Jasper (specifically Yellow and Red Jasper/Chert)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Chert (Flint variety)
Chert (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Geode (Unopened)
Silica-rich concretion (SiO2)
Banded Agate
Agate (Cryptocrystalline Quartz, SiO2)
Chert (Tan/Yellow variety)
Microcrystalline quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Chert (Common Variety, Jasper)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Agate variety)
Microcrystalline quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Chert (Tan/Yellow variety)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Agate variety)
Microcrystalline quartz (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milk Quartz (Vein Quartz)
Quartz (Silicon Dioxide, SiO2)
Petrified Wood
Silicified Wood (SiO2)
Chert (Nodule)
Silicon Dioxide (SiO2)
Moss Agate
Silicon Dioxide (SiO2) with inclusions of manganese or iron oxide
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Chalcedony (Carnelian variety)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Chert (or possibly Flint)
SiO2 (Silicon Dioxide)
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Quartz (Milky/Gray variety)
Silicon Dioxide (SiO2)