Not A Rock Or Mineral

Sandstone (Ferruginous)

Arenite (Fe-rich)

Sandstone (with potential trace fossils)

Clastic sedimentary rock (primarily SiO2)

Red Sandstone

Arenite (primarily Quartz with Iron Oxide)

Sandstone

Sandstone (clastic sedimentary rock), primarily SiO2

Sandstone

Arenite (primarily SiO2)

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily Quartz - SiO2)

Sandstone

Arenite (composed primarily of Quartz: SiO2)

Dalmatian Stone (Dalmation Jasper)

Aplite with Arfvedsonite inclusions

Geode Nodules / Chalcedony Geode

Silicon Dioxide (SiO2) - Amorphous to Cryptocrystalline Quartz

Sandstone

Arenite (primarily Quartz, SiO2)

Quartz Pebble (River Rock)

Silicon Dioxide (SiO₂)

Heliotrope (Bloodstone)

Silicon dioxide (SiO2) with inclusions

Shale

Fissile Mudrock (Clay-rich Sedimentary Rock)

Jasper with Hematite inclusions

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Sandstone (Greywacke/Lithic Sandstone)

Arenite (composed primarily of SiO2)

Ferruginous Sandstone (Gritstone)

Arenite with Iron-Oxide Cement (SiO2 with Fe2O3 and FeO(OH))

River Quartzite Siltstone

Quartz-rich Meta-siltstone (SiO2 dominated)

Ferruginous Sandstone

Sandstone with Iron Oxide (Limonite/Goethite)

Porphyritic Andesite

Andesite (Intermediate Extrusive Volcanic Rock)

Red Jasper (Brecciated Jasper)

SiO2 (Silicon Dioxide) with Ferric Iron inclusions

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe)3Si2O5(OH)4)

Chert (Jasper/Flint Pebble)

Microcrystalline quartz (SiO2)

Rock Salt (Halite)

Halite (Sodium Chloride, NaCl)

Wishing Stone (Basalt with Quartz Vein)

Basalt containing a microcrystalline quartz (SiO2) or calcite vein

Laterite

Laterite (Ferricrete)

Quartz (Iron-Stained)

Silicon Dioxide (SiO2)

Pink Granite (with Potassic Feldspar and Quartz)

Felsic Intrusive Igneous Rock (Granite)

Granite

Phaneritic Felsic Igneous Rock

Lapis Lazuli

Lapis Lazuli (a rock, not a single mineral; primary mineral is Lazurite (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2

Granite

Phaneritic Plutonic Felsic Rock (Granite)

Sandstone (likely Fossiliferous)

Arenite / Fossiliferous Sandstone (SiO2 composition)

Sandstone (Ferruginous)

Arenite (composed primarily of SiO2 with Fe2O3 cement)

Red Sandstone

Clastic sedimentary rock (primarily SiO2 with Fe2O3)

Sandstone (Ferruginous)

Arenite (Fe-rich)

Sandstone (Quartzose)

Arenite (primarily SiO2)

Sandstone (with Iron Staining)

Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 oxides)

Red Sandstone

Arenite (with Iron Oxide)

Quartz Pebble

Silicon Dioxide (SiO2)

Rough Star Sapphire (Corundum)

Al2O3 (Aluminum Oxide)

Clear Quartz Crystal

Silicon Dioxide (SiO2)

Granite (Phaneritic Igneous Rock)

Granite