Chert (and Flint)
Silicon Dioxide (SiO2)
sedimentary
Category
Organic Gemstone (Succinite)
Browse organic gemstone (succinite) specimens identified by the Rock Identifier community.
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Yellow Jasper
Silicon Dioxide (SiO2) with iron inclusions
sedimentary
Amber Inlay Jewelry
Fossilized Resin (C10H16O)
Organic Gemstone (Biogenic)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Yellow/Brown Jasper)
Silicon Dioxide (SiO2)
sedimentary
Chert (Nodule)
Microcrystalline Quartz (SiO2)
sedimentary
Pearl (nacre)
Calcium Carbonate (mostly CaCO3 as Aragonite) and Conchiolin
Organic Mineraloid
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary
Chert (Quartz Variety)
Microcrystalline Silica (SiO2)
sedimentary
Chert (Jasper/Flint variant)
Microcrystalline quartz (SiO2)
sedimentary
Chert (and Jasper/Chalcedony variety)
Microcrystalline Quartz (SiO2)
sedimentary
Dyed Coral
Calcium carbonate (CaCO3) - Calcite or Aragonite with dye
organic gemstone
Chert (Arrowhead/Artifact Fragment)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Green variety)
Microcrystalline Opaline/Quartz (SiO2)
sedimentary
Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
sedimentary
Petrified Wood
Silicified Wood (primarily Chalcedony/Quartz, SiO2)
fossil
Chert (variations include Flint or Jasper)
Silicon Dioxide (SiO2)
sedimentary
Chert (often referred to as Flint or Jasper)
Chalcedony (SiO2) - Silicon Dioxide
sedimentary
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (variations include Flint or Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Baroque Pearl
Calcium Carbonate (Aragonite or Calcite) and Conchiolin
Organic Gemstone
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
mineral
Chert (Flint)
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Chert (Jasper/Agate Peat)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (often called Flint or Chalcedony Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Pearl
Aragonite / Calcium Carbonate (CaCO3)
mineral
Pearl
Calcium carbonate (CaCO3) + organic conchiolin (Biogenic Mineral)
mineral
Chert (Brown variety / Common Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Jasper variety)
Chert (Silicon Dioxide, SiO2)
sedimentary
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Petrified Wood
Silicified Wood (primarily SiO2 - Silicon Dioxide / Chalcedony)
metamorphic
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Pearl (Cultured or Natural)
Aragonite (CaCO3) with Conchiolin
Organic Mineraloid
Chert (specifically Jasper or Flint type)
Microcrystalline Quartz (SiO2)
sedimentary
Chert Pebble
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Banded Chert / Flint
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Chert (Flint nodule)
Chert (SiO2)
sedimentary
Chert (Field Flint)
Microcrystalline Quartz (SiO2)
sedimentary