Sandstone (Ferruginous)
Sandstone (SiO2 with iron oxide inclusions)
sedimentary
Category
Mineral Or Sedimentary Rock (With Mineral Inclusions)
Browse mineral or sedimentary rock (with mineral inclusions) specimens identified by the Rock Identifier community.
Learn about Mineral Or Sedimentary Rock (With Mineral Inclusions) in the encyclopedia
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Herkimer Diamond
Quartz (Silicon Dioxide, SiO2)
mineral
Mica Schist
Crystalline Schist (often containing Muscovite, Biotite, and Quartz)
metamorphic
Sandstone
Arenite (primarily SiO2, silica)
sedimentary
Quartz with Schist Inclusion
Crystalline Silicon Dioxide (SiO2) with Muscovite/Biotite Schist
metamorphic
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Dalmatian Stone
Dalmatian Jasper (Aphanitic Igneous Rock with Arfvedsonite inclusions)
igneous
Sandstone with Foliose Lichen
Arenite (Rock matrix) with Xanthoparmelia or Flavoparmelia (Lichen genus)
sedimentary
Sandstone (Quartzose Sandstone)
Arenite (SiO2 primarily)
sedimentary
Tumbled orange-brown jasper
Microcrystalline quartz (chalcedony), SiO₂, colored by iron oxides
mineral
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Sandstone
Arenite (primarily SiO2)
sedimentary
Leopard Skin Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Quartz (Milky/Vein Quartz)
Silicon Dioxide (SiO2)
mineral
Milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Blue Chalcedony
Chalcedony (SiO2)
mineral
Blue Chalcedony
Chalcedony (Silicon Dioxide, SiO2)
mineral
Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
Quartz Druze on Matrix
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone (Red Sandstone)
Arenite (SiO2 based with Fe2O3 staining)
sedimentary
Black Limestone with Calcite Veining
Bituminous Limestone (CaCO3 with Organic Carbon inclusions)
sedimentary
Gneiss
Gneiss
metamorphic
Green Jasper Pebble
Microcrystalline Quartz (SiO2) with impurities
sedimentary
Quartz (Milk Quartz / Massive Quartz)
Silicon Dioxide (SiO2)
mineral
Likely pale green calcite
Calcite (calcium carbonate, CaCO₃)
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Polished fossiliferous limestone
Bioclastic limestone, chiefly calcite (CaCO₃)
sedimentary
Limestone with Quartz or Calcite Veining
Calcium Carbonate (CaCO3) matrix with SiO2 or CaCO3 inclusions
sedimentary
Jasper Agate (Carnelian Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Agate
Chalcedony (SiO2)
mineral
Red jasper (iron-rich chalcedony), possibly brecciated
Jasper: microcrystalline quartz, SiO₂, colored mainly by iron oxides/hydroxides
mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral
Tumbled quartz (likely milky or included quartz)
Quartz, silicon dioxide (SiO₂)
mineral
Garnet Schist or Garnet-bearing Quartzite
Metamorphic rock containing Almandine Garnet (Fe3Al2(SiO4)3) and Quartz (SiO2)
metamorphic
Iron-rich sandstone or weathered ironstone
Ferruginous sandstone, commonly quartz (SiO₂) cemented or stained by iron oxides such as hematite (Fe₂O₃) and goethite (FeO(OH))
sedimentary
Likely quartz-rich pebble in sandstone
Quartz clast (SiO₂) embedded in fine-grained sandstone; exact identification is uncertain from the image alone
sedimentary
Fossiliferous Shale
Sedimentary Clastic Rock with fossil inclusions (likely Brachiopod or Bivalve impressions)
fossil
Quartz-rich rock fragment
Milky quartz, primarily silicon dioxide (SiO₂), possibly quartzite or a feldspar-bearing vein rock
mineral
Orange Calcite (likely polished specimen)
Calcite
Mineral
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
sedimentary