Hematite
Hematite, Iron(III) oxide (Fe2O3)
Category
Browse sedimentary (chemical) specimens identified by the Rock Identifier community.
Hematite
Hematite, Iron(III) oxide (Fe2O3)
Orange Calcite
Calcium Carbonate (CaCO3)
Banded Sandstone (River Pebble)
Arenite (SiO2 primarily)
Chert (Flint)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz (Granular)
Silicon Dioxide (SiO2)
Chert (Common Opal/Agate variety)
Microcrystalline Quartz (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Orange Calcite
Calcium Carbonate (CaCO3)
Chert (Flint/Novaculite)
Microcrystalline Quartz (SiO2)
Chert / Flint
Chert (SiO2)
Chert
Microcrystalline silica (SiO2)
Chert (Flint)
Cryptocrystalline Quartz (SiO2)
Limestone Cobble
Carbonate Rock (CaCO3)
Chert (Agatized/Chalcedony variety)
Microcrystalline Quartz (SiO2)
Banded Chert
Microcrystalline Quartz (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Bauxite
Alumina ore (Mixture of Gibbsite, Boehmite, and Diaspore)
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
Yellow Calcite
Calcium Carbonate (CaCO3)
Halite (Rock Salt)
Halite (Sodium Chloride, NaCl)
Quartz (Chert/Quartzite variant)
Silicon Dioxide (SiO2)
Limestone (with possible Manganese oxide inclusions)
Sedimentary Calcium Carbonate (CaCO3)
Banded Chert / Jasper
Silicon Dioxide (SiO2)
Chert (River Cobble)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Calcite on Host Rock
Calcium Carbonate (CaCO3)
Chert (Jasper/Chalcedony)
Microcrystalline Quartz (SiO2)
Chert (Jasper)
Silicon Dioxide (SiO2)
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)