Sedimentary Rock (Possibly A Conglomerate Or Coarse Grained Sandstone)

Granite

Phaneritic Felsic Intrusive Igneous Rock

Granite

Phaneritic Plutonic Felsic Rock (Granite)

Quartzite

Quartzite (primarily SiO2)

Quartzite

Quartzite (SiO2)

Quartzite

Quartzite (primarily SiO2)

Gabbro

Phaneritic Mafic Igneous Rock

Sandstone (with Liesegang rings or Oxidation)

Arenite (primarily Quartz SiO2 with Iron Oxide Fe2O3 staining)

Granite (Phaneritic Igneous Rock)

Granite

Diorite

Phaneritic Intermediate Plutonic Rock (Diorite)

Diorite

Diorite (intermediate intrusive igneous rock)

Pink Granite

Phaneritic intrusive felsic igneous rock

Granite Pebble

Granite (Phaneritic intrusive igneous rock)

Granite

Granite (High-silica plutonic rock)

Granite

Granite (Phaneritic intrusive igneous rock)

Granite

Granite (Felsic Intrusive Igneous Rock)

Quartz Geode (partially formed/chalcedony with iron staining)

Quartz (SiO2) with Chalcedony (cryptocrystalline quartz) and likely Iron Oxides/Hydroxides

Concrete with Exposed Aggregate

Anthropogenic conglomerate (Concrete)

Quartzite

Quartzite (SiO2)

Granite (Weathered)

Phaneritic Plutonic Rock (primarily Quartz, Feldspar, and Mica)

River Quartzite (or Quartz Cobble)

Quartzite (primarily Silicon Dioxide - SiO2)

Sandstone

Arenite (primarily SiO2)

Shale

Laminated Mudstone

Pink Granite

Granite (Phaneritic Felsic Igneous Rock)

Sandstone (Ferruginous)

Arenite (Fe-oxide cemented)

Mudstone

Lutylite (group of fine-grained sedimentary rocks)

Sandstone (likely with Quartz Veining)

Arenite (primarily SiO2)

Quartzite Pebbles

Meta-quartzite (SiO2)

Sandstone Cobble with Liesegang Rings

Arenite with iron oxide precipitation (SiO2 matrix with Fe2O3 banding)

River Pebble (Quartzite/Sandstone mix)

Quartzite (primarily SiO2)

Pink Granite

Felsic Plutonic Rock (primarily Quartz, Potassium Feldspar, and Plagioclase)

Granite with Orthoclase and Hematite Staining

Phaneritic Felsic Igneous Rock (primarily SiO2 with KAlSi3O8)

Quartzite

Quartzite (primarily SiO2)

Painted Pet Rock (Quartzite/Sandstone base)

Silicon Dioxide (SiO2) with anthropomorphic acrylic embellishments

Granitic Pegmatite

Coarse-grained Granite (KAlSi3O8 + SiO2)

Banded Gneiss (River Cobble)

Gneiss (High-grade regional metamorphic rock)

Granite

Granite (Phaneritic Quartz-Feldspar intrusive rock)

Granite

Granite (Felsic Plutonic Rock)

Diorite (Spotted or Dalmatian Stone effect)

Diorite (Intermediate Plutonic Rock)

Quartzite (or Milky Quartz pebble)

Quartzite (primarily Silicon Dioxide, SiO2)

Yellow Quartzite

Quartzite (SiO2)

Orange Quartzite (River Pebble)

Quartzite (primarily SiO2)

Sandstone (Ferruginous)

Arenite (primarily SiO2 with Fe2O3/FeO(OH) cementing agents)