Chert / Quartz Pebble
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Category
Browse sedimentary (chemical) specimens identified by the Rock Identifier community.
Chert / Quartz Pebble
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (Jasper/Flint variety)
Microcrystalline silicon dioxide (SiO2)
Chert / Flint
Cryptocrystalline quartz (SiO2)
Chert (Quartz Pebble)
Silicon Dioxide (SiO2)
Chert (variously known as Flint or Jasper)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (Red/Pink Jasper subtype)
Silicon Dioxide (SiO2)
Coquina or Fossiliferous Limestone
Fossiliferous Calcarenite (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Chert (Gray Chalcedony)
Microcrystalline Quartz (SiO2)
Chert / Chalcedony
Silicon Dioxide (SiO2)
African Turquoise
African Turquoise (a trade name for Jasper, a variety of Chalcedony: SiO2)
Quartz (Raw Chunk)
Silicon Dioxide (SiO2)
Chert (Cherty Flint/Jasper variety)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Quartz
Silicon Dioxide (SiO2)
Sandstone Chert/Quartzite
Silicon Dioxide (SiO2) - Sedimentary Sandstone / Orthoquartzite
Agate Geode
Silicon Dioxide (SiO2) - variety Chalcedony/Quartz
Orange Calcite
Calcium Carbonate (CaCO3)
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Chert (and Limestone)
Silicon Dioxide (SiO2)
Chert (White-Tan variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Quartz (Milky or Clear fragment)
Silicon Dioxide (SiO2)
Wonderstone (Sandstone)
Silicified Quartz Sandstone with Iron Oxide staining
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Chert (Banded Variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Flint) Nodule
Cryptocrystalline Quartz (SiO2)
Chert (specifically Jasper or Brown Chert node)
Microcrystalline Quartz (SiO2)
Jasper (Iron-stained Chert)
Silicon Dioxide (SiO2) with iron oxide inclusions
Halite
Halite (Sodium Chloride, NaCl)
Limestone
Calcium Carbonate (CaCO3)
Chert (Iron-stained)
Microcrystalline silica (SiO2) with Hematite/Limonite
Banded Calcite (often sold as Mexican Onyx)
Calcium Carbonate (CaCO3)
Chert (Iron-Stained)
Microcrystalline Quartz (SiO2)
Limestone
Sedimentary Calcium Carbonate (CaCO3)
Limestone
Sedimentary Calcium Carbonate (CaCO3)
Chert (Field Stone/Pebble)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Orange Calcite (Banded Honey Calcite)
Calcium Carbonate (CaCO3)
Calcite with iron staining
Calcium Carbonate (CaCO3)
Green Calcite
Calcium Carbonate (CaCO3)
Orange Calcite
Calcium Carbonate (CaCO3)
Green Calcite
Calcium Carbonate (CaCO3)
Limestone
Calcareous Sedimentary Rock (CaCO3)