Travertine (Tufa)
Chemical Sedimentary Rock / Travertine (CaCO3)
Category
Browse sedimentary (physico chemical) specimens identified by the Rock Identifier community.
Travertine (Tufa)
Chemical Sedimentary Rock / Travertine (CaCO3)
Flint
SiO2 (Microcrystalline Quartz / Chert)
Chert (Flint / Banded Chalcedony)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Quartz Geode
Silicon Dioxide (SiO2)
Chert (often called Flint or Jasper)
Microcrystalline quartz (SiO2)
Yellow Chert or Jasper
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Chert / River Jasper
Microcrystalline Quartz (SiO2)
Yellow Calcite
Calcium Carbonate (CaCO3)
Orange Calcite (or Yellow Calcite)
Calcium Carbonate (CaCO3)
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Chert
Sedimentary Cryptocrystalline Quartz (SiO2)
Chert / Flint
Silicon Dioxide (SiO2)
Chert (Jasper)
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Chert (specifically Cryptocrystalline Quartz)
Silicon dioxide (SiO2)
Chert (Jasper/Chalcedony)
Microcrystalline Quartz (SiO2)
Optical Calcite
Calcite (Calcium Carbonate, CaCO3)
Honey Calcite
Calcium Carbonate (CaCO3)
Chert Geode Nodules
Microcrystalline Quartz (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Chert (or Jasper)
Microcrystalline Quartz (SiO2)
Iceland Spar (Optical Calcite)
Calcite (Calcium Carbonate, CaCO3)
Chert (White/Gray variety)
Silicon Dioxide (SiO2 / Cryptocrystalline Quartz)
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (Flint)
Chert (SiO2)
Chert Nodules / Flint
Crystalline Silica (SiO2)
Chert / Jasper
Silicon Dioxide (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Chert / Flint Pebble
Cryptocrystalline Quartz (SiO2)
Limonite/Ironstone
Limonite (FeO(OH)·nH2O)
Chert (River Pebble with Liesegang Rings)
Microcrystalline Silicon Dioxide (SiO2)
Limonite (Ochreous)
FeO(OH)·nH2O (Hydrated Iron Oxide)
Chert / Jasper
Cryptocrystalline Quartz (SiO2)
Chert (Jasper)
Cryptocrystalline Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Chert (and Jasper/Chalcedony mixture)
Microcrystalline Quartz (SiO2)
Chert (Jasper)
Silicon Dioxide (SiO2)
Pitted Limestone
Calcium Carbonate (CaCO3)
Siltstone with Iron Staining
Siltstone
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble (with Hematite/Feldspar Inclusions)
Silicon Dioxide (SiO2)