Red Jasper
Silicon dioxide (SiO2) with iron oxide inclusions
Category
Browse sedimentary (if natural jasper) or artificial (if slag) specimens identified by the Rock Identifier community.
Red Jasper
Silicon dioxide (SiO2) with iron oxide inclusions
Red Jasper with Chalcedony Banding
Microcrystalline Quartz (SiO2) with Hematite inclusions
Yellow Quartz
Silicon Dioxide (SiO2)
Pearl
Pearl; primarily aragonite (CaCO₃) in nacre
Chert (Jasper or Flint variant)
Chert (composed of microcrystalline quartz, SiO2)
Red Jasper
Microcrystalline Quartz (Chalcedony), SiO2
Jasper Arrowhead (Flint/Chert)
Microcrystalline Quartz (SiO2)
Riverstone Jasper
Silicon Dioxide (SiO2) with iron/clay inclusions
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Chert (Jasper)
Silicon Dioxide (SiO2)
Sandstone (Ferruginous)
Arenite (Siliclastic Sedimentary Rock)
Chert / Jasper
Silicon Dioxide (SiO2)
Limonite Concretion (Ironstone)
Limonite (Hydrated Iron(III) Oxide-Hydroxide, FeO(OH)·nH2O)
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
Sandstone
Arenite (composed primarily of SiO2)
Piddock bored rock (Boring Stone)
Ichnofossil-bearing Limestone or Mudstone (trace fossils by Pholadidae)
Chert (Pink/Red variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Shale
Fissile mudstone (primarily clay minerals and silt-sized quartz)
Sandstone
Clastic Sedimentary Rock
Asphalt (Bituminous Concrete)
Bituminous mix containing aggregates and petroleum-based binder (CnH2n+2)
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) impurities
Chert (or Jasper)
Microcrystalline Quartz (SiO2)
Brecciated Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Chert (Jasper)
Sedimentary Cryptocrystalline Quartz (SiO2)
Chert / Jasper
Sedimentary Cryptocrystalline Quartz (SiO2)
Chert (Jasper)
Sedimentary Cryptocrystalline Quartz (SiO2)
Siltstone with Fossil Cast
Sedimentary Rock (Siltstone / Fine-grained Sandstone)
Red Sandstone
Arenite (primarily Quartz with Hematite cement)
Sandstone (specifically Arkose or Ferruginous Sandstone)
Sandstone (SiO2 predominant)
Shale or Argillite
Shale (sedimentary) / Argillite (metamorphic)
Jasper / Chert (Red)
Cryptocrystalline quartz (SiO2)
Sandstone
Sedimentary Rock (Quartz Sandstone)
Conglomerate
Conglomeratic Sandstone
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
Red Jasper
SiO2, Chalcedony with iron inclusions
Black Opal (Triplet)
Hydrated Silica (SiO2·nH2O)
Chert / Jasper
Microcrystalline Quartz (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) - Chalcedony variety
Red Jasper
SiO2 (Microcrystalline Quartz)
Fancy Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions