Botryoidal Lace Agate
Agate (Silicon Dioxide, SiO2)
Category
Browse sedimentary (formed from silica deposits) specimens identified by the Rock Identifier community.
Botryoidal Lace Agate
Agate (Silicon Dioxide, SiO2)
Chalcedony (Blue/Grey Lace Agate)
Silicon Dioxide (SiO2)
Chert or Flint
Silicon dioxide (SiO2)
Jasper (Banded Jasper)
Silicon Dioxide (SiO2) with impurities
Jasper
Silicon Dioxide (Microcrystalline Quartz, SiO2)
Jasper
Microcrystalline Quartz (SiO2)
Chert (Jasper/Chaldcedony)
Silicon Dioxide (SiO2)
Chert (within Limestone)
Silicon Dioxide (SiO2) within Calcium Carbonate (CaCO3)
Pink Dyed Agate
Silicon Dioxide (SiO2) - Variety Agate
Chert (and/or River Pebble)
Microcrystalline silica (SiO2)
Tumbled Agate
Silicon Dioxide (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Jasper (specifically Yellow Jasper and Red Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper
Silicon Dioxide (Microcrystalline Quartz, SiO2)
Chert
Microcrystalline Quartz (SiO2)
Red Jasper
Quartz (SiO2) with iron oxide inclusions
Flint
Chert (SiO2)
Banded Flint (Chert)
Silicon Dioxide (SiO2)
Red Jasper
Jasper (SiO2) with Hematite (Fe2O3) inclusions
Chert (Jasper/Flint variety)
Microcrystalline quartz (SiO2)
Chert (Jasper)
Cryptocrystalline Silicon Dioxide (SiO2)
Chert
Silicon Dioxide (SiO2)
Jasper
Silicon Dioxide (SiO2) with impurities
Banded Calcite (often commercially sold as Mexican Onyx or Green Onyx)
Calcium Carbonate (CaCO3)
Chert (Gravel / Pebble)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chalcedony (Agate/Carnelian variant)
Silicon Dioxide (SiO2)
Chert (Flint)
Chert (SiO2)
Chert (Yellow Jasper/River Pebble)
Microcrystalline Quartz (SiO2)
Jasper
Microcrystalline Quartz (SiO2) with impurities
Yellow Jasper / Chalcedony
Silicon Dioxide (SiO2) with iron inclusions
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Banded Chert / Jasper Cognation
Microcrystalline Quartz (SiO2) with Hematite/Limonite
Jasper
Jasper (Silicon Dioxide, SiO2)
Fossil Shark Tooth
Chondrichthyes (class)
Red Jasper
Chalcedony (SiO2) with iron inclusions
Red Jasper
Silicon Dioxide (Microcrystalline Quartz), SiO2
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Quartz pebble
Silicon dioxide (SiO2)
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Echinoid Fossil / Fossilized Sea Urchin
Echinoidea
Yellow Chert (Yellow Jasper)
Silicon Dioxide (SiO2)
Jasper (Iron-stained Chert)
Silicon Dioxide (SiO2)