Dyed Agate (Tumbled)
Silicon Dioxide (SiO2) - stained microcrystalline quartz
Category
Browse sedimentary (physico chemical) specimens identified by the Rock Identifier community.
Dyed Agate (Tumbled)
Silicon Dioxide (SiO2) - stained microcrystalline quartz
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Leopard Skin Jasper
Silicon Dioxide (SiO2) with various inclusions
Chert (Basanite / Flint variety)
Microcrystalline Quartz (SiO2)
Chert (Yellow Jasper/Flint)
Microcrystalline Quartz (SiO2)
Chert (Pink Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
Sand Grain (Silica/Quartz Grain)
Silicon Dioxide (SiO2)
Chert (Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (often called Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert (specifically Flint or Jasper variant)
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Quartz (Milky or White Quartz)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO₂)
Limonite/Goethite on Shale
Hydrous ferric oxides (FeO(OH)·nH2O) often associated with argillaceous rock
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
Limestone with Weathering Rind
Calcium Carbonate (CaCO3) - Bioclastic or Micritic Limestone
Chert (Flint)
Silicon Dioxide (SiO2)
Bauxite (Concretionary)
Bauxite (Al(OH)3, AlO(OH))
Chert (Jasper-like Silicate)
Microcrystalline quartz (SiO2)
Sandstone (Banded)
Clastic Sedimentary Rock (primarily Quartz, SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (Jasper/Flint variant)
Microcrystalline Quartz (SiO2)
Chert (Common Opal/Jasper variety)
Cryptocrystalline Quartz (SiO2)
Chert (specifically Red Chert/Jasper variety)
Silicon Dioxide (SiO2)
Chert (Flint)
Chert (Silicon Dioxide, SiO2)
Chert (specifically Flint or Common Chert)
Chert (Cryptocrystalline Silica, SiO2)
Chert (specifically Red Chert/Jasper nodule)
Microcrystalline Quartz (SiO2)
Chert Geode with Quartz Druzy
Microcrystalline Quartz (SiO2) with macrocrystalline Quartz
Chert (Jasper)
Silicon Dioxide (SiO2)
Chert (specifically Jasper/Flint)
Microcrystalline Quartz (SiO2)
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
Chert (River Pebble)
Microcrystalline Quartz (SiO2)
Banded Calcite (often marketed as Caribbean Calcite)
Calcium Carbonate (CaCO3) + Aragonite
Chert (Nodular Chert)
Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)
Chert (specifically Yellow or Brown Chert / Jasper)
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
Chert with Asphaltum (or Tar)
Silica (SiO2) with natural Bitumen/Asphaltum
Chert (Flint)
Chert (Silica, SiO2)
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
Yellow Calcite
Calcium Carbonate (CaCO3)
Chert (Flint/Chalcedony)
Microcrystalline Quartz (SiO2)
Chert (often called Jasper in this color variety)
Microcrystalline Quartz (SiO2)