Not A Rock Or Mineral (Anthropogenic Material)

Sandstone

Arenite (composed primarily of SiO2)

Sandstone (Ferruginous)

Arenite (with iron oxide cement, Fe2O3)

Pebble (likely a type of sandstone or quartzite pebble)

Clastic Sediment (specifically, a rudite-sized clast). If the pebble is composed of a specific rock type, its scientific name would be that rock type (e.g., 'Quartzite pebble', 'Granite pebble', 'Chert pebble'). Given its appearance, it is likely a metamorphic quartzite pebble or a hard sandstone pebble.

Sandstone (likely Arkosic or Lithic)

Clastic Sedimentary Rock (SiO2 with accessory minerals)

Sandstone (with minor quartz and possible clay components)

Clastic Sedimentary Rock (SiO2 dominated)

Sandstone

Arenite (SiO2 based with mineral cement)

Sandstone

Arenite (primarily SiO2)

Sandstone

Arenite (primarily Quartz, SiO2)

Sandstone

Arenite (primarily SiO2)

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily SiO2 with Fe2O3 oxides)

Sandstone (Quartzose)

Arenite (primarily SiO2)

Coarse-grained Granite

Phaneritic Granite (contains Quartz, Feldspar, and Mica)

Ferro-Manganese Slag

Vitreous Silicate Slag

Fossiliferous Sandstone (with Brachiopod or Bivalve mold)

Clastic Sedimentary Rock with Macrofossil Mold

Sandstone

Arenite (primarily SiO2 with various cementing agents)

Milky Quartz

Silicon Dioxide (SiO2)

Sandstone (Quartzose)

Arenite (SiO2 based)

Sandstone (Quartzose Sandstone)

Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 staining)

Sandstone (Banded)

Clastic Sedimentary Rock (primarily SiO2)

Sandstone (Quartzose)

Arenite (SiO2 based)

Sandstone (Quartzose Sandstone)

Clastic sedimentary rock (SiO2 major component)

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily Quartz with Limonite/Goethite staining)

Sandstone (likely Arkosic or Lithic Sandstone)

Clastic Sedimentary Rock (SiO2 with assorted minerals)

Sandstone (Quartzite-rich)

Clastic sedimentary rock (primarily SiO2)

Sandstone (with manganese staining)

Clastic sedimentary rock (primarily SiO2)

Jasper

Silicon dioxide (SiO2)

Sandstone (Ferruginous)

Arenite (Fe2O3 staining)

Sandstone

Clastic sedimentary rock (primarily SiO2)

Red Sandstone

Arenite (predominantly Quartz with Hematite cementation)

Sandstone

Arenite (primarily Quartz, SiO2)

Sandstone

Arenite (primarily SiO2)

Pink Granite

Phaneritic Plutonic Igneous Rock (high K-feldspar)

Sandstone (likely Arkosic)

Clastic Sedimentary Rock (primarily SiO2 with Feldspar)

Asphalt (Bituminous Pavement)

Bituminous mix (Aggregates with Bitumen binder)

Quartz (Milky or Druzy Quartz)

Silicon Dioxide (SiO2)

Sandstone (Quartzose Sandstone)

Arenite

Sandstone (with Iron Staining)

Clastic Sedimentary Rock (primarily Quartz, SiO2)

Red Sandstone

Arenite (Ferruginous Sandstone)

Blue Lace Agate (with Amethyst Geode center)

Silicon Dioxide (SiO2) - Cryptocrystalline Chalcedony

Sandstone (with potential fossil inclusions)

Clastic sedimentary rock (primarily SiO2)

Sandstone (likely Graywacke or Lithic Sandstone)

Clastic Sedimentary Rock

Garnetiferous Pegmatite

Pegmatite with Almandine Garnet and Muscovite