Chert / Flint
Silicon dioxide (SiO2)
Category
Browse organic gemstone (succinite) specimens identified by the Rock Identifier community.
Chert / Flint
Silicon dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Iron inclusions
Fluorite
Fluorite (CaF2)
Polished plume agate
Chalcedony (microcrystalline SiO₂) with iron-oxide inclusions
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
Green Chert (Jasper)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Amber
Fossilized Tree Resin (Generic formula roughly C10H16O)
Jasper
Silicon Dioxide (Microcrystalline Quartz, $SiO_2$)
Petrified Wood (Silicified Wood)
Silicified fossil wood (SiO2)
Pink Opal
Hydrated Amorphous Silica (SiO2·nH2O)
Chert (often called Jasper or Flint)
Microcrystalline Silica (SiO2)
Amber (Copal)
Organic gemstone, fossilized tree resin (often immature amber or copal)
Chalcedony (Common Agate)
Silicon Dioxide (SiO2)
Chert (Jasper variation)
Microcrystalline Quartz (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (Flint)
Chert (Microcrystalline Quartz, SiO2)
Jasper
Silicon Dioxide (SiO2)
Chert (Smooth River Pebble)
Microcrystalline or 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 (Flint Pebbles)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Chert (SiO2)
Chert (often called Flint)
Chert (Cryptocrystalline Silica, SiO2)
Chert (often called Flint when found in chalk)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Silicon Dioxide (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Chert (often called Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert
Chert (Microcrystalline Quartz, SiO2)
Agate (Moss or Green Agate)
Silicon Dioxide (SiO2)
Petrified Wood
Silicified Wood (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Moss Agate
Chalcedony (Silicon Dioxide, SiO2) with inclusions
Orange Calcite
Calcium Carbonate (CaCO3)
Moss Agate / Chalcedony
Silicon Dioxide (SiO2)
Chert (Nodule)
Microcrystalline Quartz (SiO2)
Amber
Fossilized Tree Resin (Successite)
Pink Opal
Hydrated Silica (SiO2·nH2O) with Palygorskite/Sepiolite inclusions
Jasper (Red Jasper)
Silicon Dioxide (SiO₂)
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Chert / Flint
Silicon Dioxide (SiO2)