Ferruginous Quartz
Quartz with Iron Oxide inclusions (SiO2 + Fe2O3)
Category
Browse mineral within a sedimentary rock specimens identified by the Rock Identifier community.
Ferruginous Quartz
Quartz with Iron Oxide inclusions (SiO2 + Fe2O3)
Quartz in Limonite-rich Matrix
Silicon Dioxide (SiO2) with Goethite/Limonite FeO(OH)·nH2O
Dalmatian Stone
Dalmatian Jasper (Aplitic Rock)
Turquoise
Hydrated phosphate of copper and aluminum, CuAl6(PO4)4(OH)8·4H2O
Bauxite / Iron-rich Laterite
Laterite (principally Al(OH)3, Fe2O3, and SiO2)
Vuggy Quartz on Matrix
Silicon Dioxide (SiO2)
Fossilized Dinosaur Skull (Tyrannosaurus rex)
Tyrannosaurus rex (permineralized fossil), rich in Hydroxylapatite/Silica
Chert Geode or Nodule
Microcrystalline Quartz (SiO2)
Sandstone
Arenite (SiO2 based with mineral cement)
Porphyritic Basalt (Chinese Flower Stone / Chrysanthemum Stone basalt variety)
Porphyritic Basalt containing Plagioclase Feldspar phenocrysts
Sandstone (Ferruginous)
Sandstone (primarily SiO2 with Fe2O3 cement)
Sandstone (Yellow/Tan Sandstone)
Arenite (primarily Quartz, SiO2)
Chert (Yellow/Tan Variety)
Chert (SiO2)
Chert (Chert Pebble)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Ocean Jasper
Spherulitic Chalcedony (SiO2)
Jasper
Silicon dioxide (SiO2)
Sandstone (River Cobble)
Clastic Sedimentary Rock (primarily Quartz with Feldspar)
Sandstone (likely with Borings or Vesicular Basalt)
Clastic Sedimentary Rock (Sandstone)
Sandstone (Iron-stained)
Arenite (composed primarily of SiO2 with Fe2O3 staining)
Pyrite in Quartz
Iron Sulfide (FeS2) in Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Herkimer Diamond (Quartz Crystal)
Silicon Dioxide (SiO2)
Sandstone (Quartzose)
Arenite (SiO2 principal)
Quartz Druzy on Geode Fragment
Silicon Dioxide (SiO2)
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily Quartz, SiO2)
Quartz Geode (Cracked Open Fragment)
Silicon Dioxide (SiO2)
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Sandstone (Quartzose Sandstone)
Arenite (SiO2 principal component)
Quartz Druzy Geode Fragment
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Green Jasper
Silicon Dioxide (SiO2) with impurities
Chert (potentially Flint or Mudstone)
Microcrystalline Quartz (SiO2)
Sedimentary Breccia
Clastic Breccia (CaCO3/SiO2 matrix)
Turquoise in Matrix
Hydrated phosphate of copper and aluminum (CuAl6(PO4)4(OH)8·4H2O)
Druzy Quartz Geode (Vug)
Silicon Dioxide (SiO2)
Calcite Geode
Calcium Carbonate (CaCO3)
Druzzy Quartz on Matrix
Silicon Dioxide (SiO2)
Sandstone
Arenicola (comprising mostly Quartz, SiO2)
Turquoise (set in silver jewelry)
Turquoise - CuAl6(PO4)4(OH)8·4H2O (Hydrated copper and aluminum phosphate)
Turquoise
CuAl6(PO4)4(OH)8·4H2O
Sandstone (Quartz-rich)
Arenite (composed primarily of SiO2)
Chert Nodule
Microcrystalline Silica (SiO2)