Sandstone with Quartz Veining
Clastic sedimentary rock (SiO2 dominated)
sedimentary
Category
Sedimentary (Secondary Classification: Cryptocrystalline Quartz)
Browse sedimentary (secondary classification: cryptocrystalline quartz) specimens identified by the Rock Identifier community.
Learn about Sedimentary (Secondary Classification: Cryptocrystalline Quartz) in the encyclopedia
View all →
Chert (Nodule)
Silicon Dioxide (SiO2)
sedimentary
Chert with Quartz Vein
Microcrystalline Quartz (SiO2) with Macrocrystalline Quartz
sedimentary
Agate Geode Node
Cryptocrystalline Quartz (SiO2)
mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with Limonite/Hematite inclusions
Mineral
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
mineral
Bacan Stone (Chrysocolla-in-Chalcedony)
Chrysocolla in Chalcedony (SiO2 with (Cu, Al)2H2Si2O5(OH)4·nH2O)
mineral
River Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Sandstone (Iron-stained)
Arenite (primarily SiO2 with Fe2O3 staining)
sedimentary
Banded Chert
Silicon Dioxide (SiO2)
sedimentary
Banded Chert or Agate
Silicon Dioxide (SiO2)
sedimentary
Concretionary Sandstone
Clastic Sedimentary Rock (Sandstone with secondary mineral cementation)
sedimentary
Quartz Geode
Silicon Dioxide (SiO2) in Geode form
sedimentary
Yellow Jasper
Silicon dioxide (SiO2)
sedimentary
Chalcedony in Matrix
Silicon Dioxide (SiO2)
mineral
Banded Slate or Siltstone with Quartz/Calcite Veins
Protolith-derived Siltstone or Slate (varies based on degree of metamorphism)
metamorphic
K2 Jasper (K2 Granite)
Azurite in Granite (Biotite Granite with Azurite inclusions)
igneous
Quartz vein in Host Rock
Crystalline Silicon Dioxide (SiO2) in Lithic Matrix
metamorphic
Leopard Skin Jasper
Silicified Rhyolite or Orbicular Jasper (SiO2)
sedimentary
Chert (Nodule fragment)
Silicon Dioxide (SiO2)
sedimentary
Chert / Jasper
Silicon Dioxide (SiO2)
sedimentary
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Agate (Grey Agate Slice)
Microcrystalline Quartz (SiO2)
mineral
Quartz Geode with Chalcedony
Silicon Dioxide (SiO2) in Geode Form
sedimentary
Turquoise
Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O
mineral
Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone (with Limonite staining)
Arenite (FeOx-rich)
sedimentary
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Quartzite with Quartz Vein
Quartzite (primarily SiO2)
metamorphic
Unidentified Rock Fragment
Unknown
Rock
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Banded Iron Formation (BIF) with Quartz
Banded Iron Formation, often composed of alternating layers of hematite (Fe2O3) or magnetite (Fe3O4) and chert (microcrystalline quartz, SiO2)
Sedimentary
Quartz with Iron Stains
Silicon Dioxide (SiO2) with FeOx inclusions
mineral
Red Jasper
Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)
sedimentary
Mica-rich Sandstone or Micaceous Schist Weathering
Micaceous Schist (Muscovite-Quartz composition)
Metamorphic or Sedimentary depending on local grade
Blue Chalcedony
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Dyed Agate
Silicon Dioxide (SiO2) with synthetic dyes
mineral
Granite
Granite (a broadly defined plutonic igneous rock, often more specifically classified as quartz monzonite or granodiorite based on precise mineral percentages)
igneous
Turquoise
Turquoise (Hydrated phosphate of copper and aluminium) - CuAl6(PO4)4(OH)8·4H2O
mineral
Quartz
Quartz (SiO₂ - Silicon Dioxide)
Mineral
Limonite and Goethite (Ironstone)
Hydrous Iron Oxide Mixture (FeO(OH)·nH2O)
sedimentary
Quartz Geode
Crystalline Quartz (Silicon Dioxide, SiO2)
mineral