Mineral On Sedimentary Rock

Red Sandstone

Arenite (primarily Quartz, SiO2, with Iron Oxide cementing agent)

Sandstone

Arenite (SiO2 principal component)

Opal

Hydrated Amorphous Silica (SiO2·nH2O)

Sandstone (specifically Arkose or Quartz Arenite)

Arenite (primarily SiO2 with possible Feldspar)

Sandstone (Micaceous)

Arenite (composed primarily of SiO2)

Chert (Chert Pebble)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Sedimentary Breccia

Breccia (Clastic Sedimentary Rock)

Sandstone (Greywacke/Lithic Sandstone)

Arenite / Lithic Sandstone

Calcite (Yellow/Orange variety - sometimes called Honey Calcite)

Calcite

Green Calcite

Calcium Carbonate (CaCO3)

Green Chalcedony (likely Green Agate or Chrysoprase)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Banded Agate (Tumbled)

Agate (Variety of Chalcedony/Quartz), SiO2

Carnelian

Carnelian (SiO2 - Chalcedony colored by Iron Oxide)

Chalcedony (Botryoidal)

Silicon Dioxide (SiO2)

Sandstone

Arenite (variable SiO2 composition)

Sandstone (with potential iron-oxide staining)

Arenite (primarily SiO2)

Sandstone (Quartz-rich)

Arenite (SiO2 based)

Sandstone

Arenite (composed primarily of SiO2)

Sandstone (with Limonite staining)

Arenite (primarily SiO2 with FeO(OH)·nH2O)

Ferruginous Sandstone (Ironstone)

Clastic Sedimentary Rock (composed of SiO2 with Fe2O3/FeO(OH) cement)

Sandstone (specifically Picture Sandstone or Wonderstone)

Arenite (composed primarily of SiO2)

Jasper with Quartz Veining

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Shale (with minor calcite veining)

Clastic sedimentary rock (primarily clay minerals and quartz)

Quartz

Silicon dioxide (SiO2)

Banded Agate

Agate (Cryptocrystalline Quartz, SiO2)

Aragonite / Calcite Geode

Calcium Carbonate (CaCO3)

Sandstone (specifically Lithic or Quartz Arenite)

Arenite (composed primarily of SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Sandstone (likely Quartzose)

Arenite (SiO2 principal mineral)

Sandstone (with Feldspathic/Arkose qualities)

Arenite (primarily SiO2 with KAlSi3O8 components)

Quartz Geode (River Cobble)

Silicon Dioxide (SiO2)

Sandstone (with Iron Siderite Concretion)

Arenite with Ironstone Concretion (FeCO3)

Sandstone (Ferruginous)

Arenite with Iron Oxide cement (primarily SiO2 with Fe2O3)

Quartz (Milky or Druzy Quartz)

Silicon Dioxide (SiO2)

Ferruginous Sandstone (with Iron Oxide staining)

Clastic Sedimentary Rock - Quartz Arenite/Wacke

Bauxite / Iron-rich Laterite

Laterite (principally Al(OH)3, Fe2O3, and SiO2)

Vesicular Sandstone

Clastic Sedimentary Rock (Sandstone)

Yellow Jasper

Jasper (Silicon Dioxide, SiO2)

Quartz Geode

Silicon Dioxide (SiO2) within a geode

Sandstone

Arenite (composed primarily of SiO2)

Quartz

Silicon Dioxide (SiO2)