Halite (Rock Salt)
Halite (Sodium Chloride, NaCl)
Category
Browse sedimentary (chemical) specimens identified by the Rock Identifier community.
Halite (Rock Salt)
Halite (Sodium Chloride, NaCl)
Chert (Nodule)
Chert (Silicon Dioxide, SiO2)
Bauxite
Bauxite (Al2O3·nH2O)
Coarse Sand or Fine Gravel
Clastic Sediment (unconsolidated)
Chert (Heart-shaped Pebble)
Cryptocrystalline quartz (SiO2)
Weathered chert or siliceous limestone
Microcrystalline quartz (SiO₂), possibly with carbonate matrix
Ironstone (Limonite/Hematite)
Ferruginous Sedimentary Rock (composed largely of Fe2O3 and FeO(OH)·nH2O)
Sandstone with Iron Oxide
Arenite (SiO2 with Fe2O3 inclusions)
Limestone
Calcium Carbonate (CaCO3)
Sandstone with Lichen
Arenite (SiO2 based) with biological weathering
Limestone
Sedimentary rock composed primarily of calcium carbonate (CaCO3)
Chert (Jasper)
Microcrystalline Quartz (SiO2) with hematite impurities
Chert (Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Yellow Jasper variant)
Silicon Dioxide (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Chert (Chalcedony-rich sedimentary rock)
Cryptocrystalline Quartz (SiO2)
Red Chert (Jasper)
Silicon Dioxide (SiO2)
Limonite / Ironstone
Hydrated Iron Oxide (FeO(OH)·nH2O)
Limestone Fragment
Sedimentary rock (primarily Calcium Carbonate, CaCO3)
Sandstone (Ferruginous)
Sandstone (primarily SiO2 with iron oxide Fe2O3 staining)
Chert (or Jasper)
Silicon dioxide (SiO2)
Banded Chert (River Pebble)
Microcrystalline Quartz (SiO2)
Banded Chert
Silicon Dioxide (SiO2)
Halite (Rock Salt)
Halite (Sodium Chloride, NaCl)
Sandstone with Liesegang Rings
Clastic Sedimentary Rock with Iron Oxide Precipitates (SiO2 + Fe2O3)
Rounded quartz-rich pebble
Likely milky quartz or quartzite; SiO₂
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Chert (Flint)
Chert (SiO2)
Chert (or Jasper)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Jasper)
Silicon Dioxide (SiO2)
Quartz pebble
Silicon dioxide (SiO2)
Chert (Cloudy Gray)
Silicon dioxide (SiO2) - Microcrystalline Quartz
Chert / Flint pebble
Microcrystalline quartz (SiO2)
Chert
Chert (Microcrystalline Quartz, SiO2)