Chert (Black Chert/Flint)
Silicon Dioxide (SiO2)
Category
Browse organic gemstone (succinite) specimens identified by the Rock Identifier community.
Chert (Black Chert/Flint)
Silicon Dioxide (SiO2)
Black Jasper
Silicon Dioxide (SiO2) with impurities
Chert (specifically Flint)
Silicon Dioxide (SiO2)
Chert (Jasper)
Cryptocrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert / Flint
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (Jasper variety)
Silicon Dioxide (SiO2) with iron oxide impurities
Chert (often called Flint when found in chalk)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Silicon Dioxide (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Moss Agate
Silicon Dioxide (SiO2) with inclusions
Jasper (Red Jasper)
Silicon Dioxide (SiO₂)
Moss Agate
Chalcedony (Silicon Dioxide, SiO2) with inclusions of Chlorite, Manganese, or Iron
Green Moss Agate
Silicon Dioxide (SiO2) with Mineral Inclusions
Petrified Wood
Silicified wood (principally SiO2)
Red Chert (Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
Red Coral
Corallium rubrum (Calcium Carbonate, CaCO3 with Carotenoid pigments)
Chert (Yellow Jasper/Flint)
Silicon Dioxide (SiO2)
Jasper
Silicon Dioxide (SiO2) with impurities
Chert (Yellow Jasper variant)
Microcrystalline Quartz (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Blue Apatite
Apatite - Ca5(PO4)3(F,Cl,OH)
Chert (Flint)
Microcrystalline Opaline Silica (SiO2)
Fancy Jasper
Jasper (Cryptocrystalline Quartz, SiO2)
Chert (Red Jasper variant)
Microcrystalline Quartz (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Chert (often called Flint)
Microcrystalline Quartz (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Chalcedony
Cryptocrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline quartz (SiO2)
Chert (specifically Flint or Novaculite variant)
Chert (Microcrystalline Quartz, SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Pink Opal
Amorphous Hydrous Silica (SiO2·nH2O)
Petrified Wood
Silicified Wood (SiO2)
Petrified Wood
Silicified Wood (primarily SiO2)
Moss Agate
Silicon Dioxide (SiO2) with inclusions of manganese or iron oxide
Amber
Fossilized Tree Resin (Succinate)
Petrified Wood
Silicified Wood (primarily SiO2)
Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Chert (variations include Flint)
Sedimentary cryptocrystalline quartz (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Red Jasper
Quartz (SiO2) with iron oxide inclusions