Man Made Composite (Lithified Equivalent Of Sedimentary)

Sandstone

Arenite (primarily SiO2)

Limestone

Calcium Carbonate (CaCO3)

Oak-grain Laminate (Industrial/Decorative Furniture Finish)

Melamine Resin-impregnated Decorative Paper on Particleboard (Cellulose/Thermosetting Plastic)

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 (Quartzose)

Arenite (composed primarily of SiO2)

Sandstone (Quartzite-rich)

Clastic sedimentary rock (primarily SiO2)

Sandstone

Arenite (a specific type of sandstone with less than 15% matrix)

Sandstone

Arenite (composed primarily of Quartz, SiO2)

Sandstone

Sandstone (Sedimentary rock composed of silicate grains)

Sandstone

Quartz Arenite (a common type of sandstone, given the appearance), Arkose, Greywacke (depending on mineralogy)

Sandstone (Quartzose Pebble)

Clastic Sedimentary Rock (Litharenite/Quartz arenite)

Sandstone

Arenite (primarily SiO2)

Quartz

Quartz (SiO₂)

Sandstone (clastic)

Clastic Sedimentary Rock (primarily composed of SiO2)

Sandstone (Micaceous/Feldspathic variant)

Arenite (specifically subarkose or lithic arenite)

Sandstone

Clastic sedimentary rock (primarily SiO2)

Quartz (likely Milky Quartz)

Quartz (SiO₂ - Silicon Dioxide)

Sandstone

Arenite (composed primarily of SiO2)

Sandstone (Ferruginous)

Clastic Sedimentary Rock (SiO2 with Fe2O3/FeOOH cement)

Sandstone (Stream-rounded)

Arenite (SiO2 based)

Sandstone

Arenite (primarily SiO2)

Digital Multimeter (Synthetic Object)

Digital Multimeter (DMM)

Sandstone Chert/Quartzite

Silicon Dioxide (SiO2) - Sedimentary Sandstone / Orthoquartzite

Sandstone (likely Graywacke or Arkose variant)

Clastic Sedimentary Rock (SiO2 based)

Amber (Cherry or Red variety)

Succinite (with various trace amounts of organic compounds)

Sandstone

Quartz Sandstone (predominantly)

Sandstone (likely with Quartz Veining)

Arenite (primarily SiO2)

Garnet Beads

Garnet Group (complex nesosilicates, e.g., Almandine Fe3Al2(SiO4)3)

Sandstone

Clastic sedimentary rock (primarily SiO2)

Petrified Wood

Silicified wood (Quartz variant, SiO2)

Limonite / Ironstone Nodule

Limonite (Hydrated iron(III) oxide-hydroxide), FeO(OH)·nH2O

Sandstone

Arenite (primarily SiO2)

Sandstone (Ferruginous)

Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)

Sandstone

Arenite

Sandstone

Arenite (primarily SiO2)

Sandstone

Arenite (primarily composed of SiO2)

Sandstone (Quartz-rich)

Arenite (composed mainly of SiO2)

Sandstone

Arenite (primarily SiO2)

Sandstone

Arenite

Limestone

Calcium carbonate (CaCO3)

Limestone

Calcium Carbonate (CaCO3)

Green Chert (Jasper)

Silicon Dioxide (SiO2)