Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Category
Browse sedimentary (microcrystalline silicate) specimens identified by the Rock Identifier community.
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Chert (Ventifact)
Chert (Silicon Dioxide, SiO2)
Yellow Jasper
Silicon Dioxide (SiO2 with iron oxide inclusions)
Soapstone
Steatite (primarily composed of Talc, Mg₃Si₄O₁₀(OH)₂)
Vesicular volcanic scoria (likely basaltic scoria)
Scoria; predominantly iron- and magnesium-rich silicate glass with plagioclase, pyroxene, and possible olivine
Red Jasper
Silicon Dioxide with Iron Oxide inclusions (SiO2)
Red Jasper or Ferruginous Chert
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Jasper (Banded Jasper / Chert)
Silicon Dioxide (SiO2 with iron oxide inclusions)
Carnelian
Chalcedony (Silicon Dioxide, SiO2)
Carnelian
Silicon Dioxide (Quartz variety), SiO2
Quartz Geode / Druzy Quartz Node
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide impurities
Red Jasper (Siltstone variant)
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Red Jasper
Jasper (Silicon Dioxide) - SiO2
Jasper
Microcrystalline Quartz (SiO2)
Amber (or polished Chalcedony bead)
Fossilized Tree Resin / SiO2 (Silicon Dioxide if Chalcedony)
River Jasper (Chert/Chalcedony)
Silicon Dioxide (SiO2) with iron oxide impurities
Agate
Silicon dioxide (Chalcedony), SiO2
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides
Shale / Mudstone
Sedimentary rock (Claystone / Mudstone / Shale)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
Jasper
Microcrystalline Quartz (SiO2)
Jasper
Microcrystalline Quartz (SiO2)
Flint / Chert
Microcrystalline quartz (SiO2)
Chert / Flint
Microcrystalline Quartz (SiO2)
Chert / Flint
Microcrystalline Quartz (SiO2)
Chert Nodule / Flint
Microcrystalline Quartz (SiO2)
Chert / Flint
Microcrystalline Quartz (SiO2)
Chert (Field Stone)
Microcrystalline Quartz (SiO2)
Chert/Jasper
Microcrystalline Quartz (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Chert (Common Opal/Jasper variety)
Microcrystalline Quartz (SiO2) with hydration
Jasper
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Opaline Silica (SiO2)
Pink Zebra Jasper
Microcrystalline Quartz (SiO2)
Chert (Flint nodules)
Chert (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Carnelian
SiO2 (Silicon Dioxide) with Ferric Oxide inclusions
Banded Agate
Agate (Silicon Dioxide, SiO2)