Mineral Within A Sedimentary Rock

Jasper

Silicon dioxide (SiO2)

Ocean Jasper

Silicon dioxide with impurities (SiO2 + impurities)

Sandstone (Red)

Arenite (SiO2 with Fe2O3)

Picture Jasper (specifically Biggs or Deschutes variety)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Gneiss (specifically Banded Gneiss)

Gneiss

Ferruginous Sandstone

Sandstone (rich in iron oxides/hydroxides)

Red Sandstone Pebble

Arenite (primarily Quartz SiO2 with Hematite Fe2O3 staining)

Quartz Geode

Silicon Dioxide (SiO2)

Magnetite Orthorthotropic Rock

Magnetite (Fe3O4)

Yellow Calcite

Calcium Carbonate (CaCO3)

Sandstone (Quartzose)

Arenite (primarily SiO2)

Sandstone (Quartz-rich Pebble)

Arenite (primarily SiO2)

Sandstone (likely Fossiliferous)

Arenite / Sedimentum arenaceum

Chert (often called Flint when dark or found in chalk)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Sandstone

Arenite (primarily SiO2)

Chert with Quartz Veining

Silicon Dioxide (SiO2)

Garnet (Almandine)

Almandine, Fe3Al2(SiO4)3

Pyrite

Iron Sulfide (FeS2)

Sandstone (with biological crust)

Arenite (SiO2 based)

Druzy Quartz

Silicon Dioxide (SiO2)

Chert (Jasper/Common Opal mix)

Microcrystalline Quartz (SiO2)

Clear Quartz Cluster

Silicon Dioxide (SiO2)

Sandstone (Yellow/Tan)

Clastic sedimentary rock (primarily SiO2 with iron oxide staining)

Red Sandstone (Iron-rich Sandstone)

Clastic Sedimentary Rock - Quartz Arenite / Arkose with Hematite Cement

Asphalt (Bituminous Pavement)

Bituminous mix (Aggregates with Bitumen binder)

Sandstone

Clastic Sedimentary Rock (composed mostly of SiO2)

Ironstone Concretion (Limonite/Hematite Nodules)

Ironstone (principally Limonite FeO(OH)·nH2O or Hematite Fe2O3 mixed with silica/clay)

Schist

Mica Schist (primarily Muscovite or Biotite sheet silicates)

Graveler (Fictional Interpretation)

Mons calcarius anthropomorphus

Druzy Quartz (on Quartzite or Chert)

Silicon Dioxide (SiO2)

Blue Chalcedony

Microcrystalline Quartz (SiO2)

Picture Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Amethyst Geode (polished heart-cut)

Silicon Dioxide (SiO2) with iron impurities

Sandstone

Arenite (primarily SiO2)

Basalt with Caliche Crust

Aphanitic Mafic Igneous Rock with Calcium Carbonate (CaCO3) coating

Labradorite

Labradorite (a variety of Plagioclase Feldspar), Na(AlSi3O8) to Ca(Al2Si2O8)

Dalmation Stone (Dyed)

Peralkaline rhyolite

Larvikite

Monzonite (intermediate intrusive igneous rock containing plagioclase, alkali feldspar, and minor dark minerals)

Mica Schist

Mica Schist (predominantly Muscovite or Biotite sheet silicates)

Sandstone

Arenite (composed primarily of SiO2)

Septarian Nodule (Dragon Stone)

Septarian Geode (CaCO3 + Mg + Fe)

Pebble (river rock/beach pebble)

Pebble (clast size class)