Jasper
Silicon Dioxide (SiO2)
sedimentary
Category
Mineral (Specifically A Variety Of Chalcedony, Which Is A Cryptocrystalline Quartz)
Browse mineral (specifically a variety of chalcedony, which is a cryptocrystalline quartz) specimens identified by the Rock Identifier community.
Mixed Gemstone Collection
SiO2 (Quartz varieties) and Biogenic CaCO3 (Nacre)
mineral
Banded Chert
Cryptocrystalline Quartz (SiO2)
sedimentary
Ocean Jasper
Orbicular Jasper (Silicon Dioxide, SiO2)
sedimentary
Blue John Fluorite
Fluorite (Calcium Fluoride), CaF2
mineral
Jasper (likely Brown or Brecciated)
Jasper (Silicon Dioxide, SiO2)
sedimentary
Satin Spar (often marketed as Selenite)
Fibrous Gypsum (CaSO4·2H2O)
mineral
Quartz
Quartz (Silicon Dioxide - SiO2)
Mineral
Chert (with Chalky Cortex)
Silicon Dioxide (SiO2)
sedimentary
Carnelian (a variety of Chalcedony)
SiO2 (Silicon Dioxide) with Iron Oxide impurities
mineral
Unakite
Unakite (Epidotized Granite)
metamorphic
Milky Quartz (Tumbled)
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
mineral
Jasper
Jasper (Silicon Dioxide) - SiO2
sedimentary
Chert (or Chalcedony)
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral
Chert (specifically Flint or Jasper variant)
Microcrystalline Quartz (SiO2)
sedimentary
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble (Chalcedony/Agate)
Silicon Dioxide (SiO2)
Mineral
Brecciated Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Agate (specifically Lace Agate or Banded Agate)
Silicon Dioxide (SiO2)
mineral
Blue Quartz (Aventurine)
Silicon Dioxide (SiO2) with Crocidolite or Magnesio-riebeckite inclusions
metamorphic
Red Jasper (Plum or Brick variety)
Silicon Dioxide (SiO2) with iron oxide inclusions (Hematite)
sedimentary (chemical/biological origin)
Chert (Arrowhead Preform or Flake)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Jasper/Chalcedony)
Microcrystalline Quartz (SiO2)
sedimentary
Tree Agate (Dendritic Agate/Quartz)
Silicon Dioxide (SiO2) with trace Manganese or Iron oxide inclusions
mineral
Jasper or Chert with Quartz Vugs
Silicon Dioxide (SiO2)
sedimentary
Blue Lace Agate
Cryptocrystalline Quartz (SiO2) with trace minerals
mineral
Larimar (Pectolite)
NaCa2Si3O10(OH) (Sodium Calcium Silicate Hydroxide)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Smoky Quartz
SiO2 (Silicon Dioxide)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with goethite or iron oxide inclusions
sedimentary
Banded Calcite (often sold as 'Travertine' or 'Mexican Onyx')
Calcium Carbonate (CaCO3)
sedimentary
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Jasper (likely Lake Superior Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary (silica-rich mineral variety)
Agate (Thunderegg segment)
Silicon dioxide (SiO2) - Microcrystalline Quartz/Chalcedony
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Quartz (Quartzite fragment)
Silicon Dioxide (SiO2)
mineral