Yellow Jasper
Silicon Dioxide (SiO2) with Iron Hydroxide impurities
Category
Browse sedimentary (chemically precipitated mineral) specimens identified by the Rock Identifier community.
Yellow Jasper
Silicon Dioxide (SiO2) with Iron Hydroxide impurities
Jasper (Red/Carnelian Agate)
Silicon Dioxide (SiO2) with Iron Oxide impurities
Orange Calcite
Calcium Carbonate (CaCO3)
Clear Quartz
Silicon Dioxide (SiO2)
Blue Calcite
Calcium Carbonate (CaCO3)
Pink Chalcedony
Silicon Dioxide (SiO2)
Chalcedony (Agate/Chert)
Microcrystalline Quartz (SiO2)
Common Opal
Hydrated Amorphous Silica (SiO2·nH2O)
Brown Agate
Cryptocrystalline Silica (SiO2)
Quartz-veined Sandstone Pebble
Quartzite-veined Arenite
Greenstone with Epidote or Quartz veins
Metabasalt (Greenstone facies)
Agate (specifically crazy lace agate / orbicular agate node)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Orange Calcite
Calcium Carbonate (CaCO3)
Fossilized Dinosaur Skull (Tyrannosaurus rex)
Tyrannosaurus rex (permineralized fossil), rich in Hydroxylapatite/Silica
Calcite on Host Rock
Calcium Carbonate (CaCO3)
Chert (with Iron Staining)
Silicon Dioxide (SiO2)
Mudstone/Siltstone with Liesegang Bands
Argillaceous Sedimentary Rock with Chemical Banding
Chert (varieties including Flint or Jasper)
Microcrystalline Quartz (SiO2)
Quartz on Schist
Silicon Dioxide (SiO2) on Foliated Metamorphic Rock
Calcite
Calcite (Mineral; CaCO₃)
Celestite (Celestine)
Celestine (Strontium Sulfate, SrSO4)
Quartz Pebble
Silicon Dioxide (SiO2)
White Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Chert / Flint
Silicon Dioxide (SiO2)
Limonite / Ironstone
Hydrated Iron Oxide (FeO(OH)·nH2O)
Bauxite (Pisolitic Bauxite)
Bauxite (mixture of Hydrous Aluminum Oxides)
Quartz Pebble
Silicon Dioxide (SiO2)
Hematite (Iron Ore)
Hematite (Fe2O3)
Granodiorite Core
Granodiorite
Chert / Flint
Microcrystalline quartz (SiO2)
Flint / Chert Pebble
Microcrystalline quartz (SiO2)
Chert (specifically Gray Chert)
Chert (SiO2)
Chert (Flint/Jasper variety)
Microcrystalline Quartz (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Chert (Quartzite Pebble)
Microcrystalline Quartz (SiO2)
Limonite with Trace Fossils
Hydrous Iron Oxide Mixture (FeO(OH)·nH2O)
Quartz Geode
Silicon Dioxide (SiO2)
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Barite
Barium Sulfate (BaSO4)
Blue Calcite
Calcite (Calcium Carbonate, CaCO3)
Yellow Calcite
Calcium Carbonate (CaCO3)