Sandstone (likely Quartzose)
Arenite (primarily SiO2)
sedimentary
Category
Mineral Within Sedimentary Rock
Browse mineral within sedimentary rock specimens identified by the Rock Identifier community.
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Sandstone (Ferruginous)
Arenite with Iron-oxide inclusions (SiO2 primarily)
sedimentary
River Quartzite Siltstone
Quartz-rich Meta-siltstone (SiO2 dominated)
metamorphic
Banded Gneiss Pebble
Gneiss (Metamorphic Rock)
metamorphic
Jasper and Quartz Pebble
Silicon dioxide (SiO2) microcrystalline quartz
sedimentary
Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Turquoise
Hydrated phosphate of copper and aluminum, CuAl6(PO4)4(OH)8·4H2O
mineral
Granite Gneiss
Gneiss (containing quartz, alkali feldspar, plagioclase, biotite/amphibole)
metamorphic
Sandstone (Quartzose)
Arenite (SiO2 based)
sedimentary
Breccia
Sedimentary Breccia
sedimentary
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (SiO2 dominated)
sedimentary
Quartz Druzy Geode Fragment
Silicon Dioxide (SiO2)
mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Ironstone Pebble
Sedimentary Ironstone (Hematite/Limonite-bearing)
sedimentary
Garnet-bearing Schist / Conglomerate Specimen
Metamorphic rock with almandine garnet porphyroblasts
metamorphic
Sandstone
Arenite (often composed of Quartz, SiO2)
sedimentary
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Vuggy Quartz on Matrix
Silicon Dioxide (SiO2)
mineral
Dalmatian Jasper
Peralkaline rhyolite
igneous
Quartz Geode
Crystalline Quartz (SiO2) within a sedimentary or volcanic host
mineral
Sandstone with Iron Staining
Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)
sedimentary
Witch Stone (Hag Stone)
Perforated Sedimentary Rock (Typically Sandstone or Limestone)
sedimentary
Chert Geode or Nodule
Microcrystalline Quartz (SiO2)
sedimentary
Banded Gneiss
Gneiss (Foliated Metamorphic Rock)
metamorphic
Sandstone (Feldspathic / Arkose)
Sandstone (SiO2 with variable mineral grains)
sedimentary
Chert (Chalcedony/Agate)
Microcrystalline Quartz (SiO2)
sedimentary
Milky Quartz in Shale
Silicon Dioxide (SiO2) in sedimentary host rock
mineral
Red Sandstone
Arenite (primarily Quartz SiO₂ with Hematite Fe₂O₃ staining)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Turquoise in Matrix
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Fossiliferous Sandstone / Fossil Fragment
Fossiliferous Sedimentary Matrix with Indeterminate Fossil Material
fossil
Garnet in Schist (Mica Schist with Garnet Inclusion)
Garnetiferous Mica Schist (X3Al2(SiO4)3)
metamorphic
Sandstone (likely Arkosic)
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite (SiO2 based with mineral cement)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Pebble with Basaltic and Quartz-rich Banding
Polymictic Lithic Pebble
sedimentary
Banded Agate
Cryptocrystalline Quartz (SiO2) with iron oxide inclusions
mineral
Quartz Geode Fragment
Silicon Dioxide (SiO2)
sedimentary
Chert on Volcanic Host Rock
Sedimentary Chert (SiO2) within Basalt or Andesite
sedimentary
Sandstone Concretion
Carbonate-cemented Sandstone Concretion
sedimentary
Hag Stone
Perforated sedimentary rock (typically flint, chert, or limestone)
sedimentary
Chert (Common Opal or Flint variant)
Microcrystalline Quartz (SiO2)
sedimentary