Sedimentary Rock (Possibly Composed Of Various Minerals)

Quartz Boulder

Silicon Dioxide (SiO2)

Sandstone

Sedimentary rock composed mainly of sand-sized minerals or rock grains

Weathered iron-rich rock, possibly basalt or ironstone

Indeterminate; likely Fe-oxide-bearing basaltic rock (commonly magnetite/hematite in a silicate matrix)

Labradorite (likely Black Labradorite or Larvikite)

Labradorite (Na,Ca)(Al,Si)4O8. If a rock, it is typically anorthosite, gabbro, or norite, or a variety of syenite called Larvikite if it is specifically from Larvik, Norway.

Green Jasper Pebble

Microcrystalline Quartz (SiO2) with impurities

Soapstone

Steatite (primarily composed of Talc, Mg₃Si₄O₁₀(OH)₂)

Quartz (chalcedony variety) or Limestone with Quartz Veins

SiO2 (for Quartz/Chalcedony); CaCO3 (for Limestone)

Coarse-grained Granite

Granitoid (Felsic Plutonic Rock)

Sandstone

Arenite (SiO2 based)

Granite, possibly granodiorite

Coarse-grained felsic plutonic rock; chiefly quartz (SiO₂), potassium feldspar and plagioclase feldspar, with biotite and/or hornblende

Granite

Felsic intrusive igneous rock

Red Sandstone

Arenite (primarily Quartz SiO2 with Hematite Fe2O3 cement)

Granite / Quartz with Mica inclusion

Granite (Plutonic Igneous Rock)

Sandstone (Iron-stained)

Arenite (primarily Quartz, SiO2)

Lapis Lazuli

Lapis Lazuli (Primary mineral: Lazurite, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Blue Calcite Sphere

Calcium Carbonate (CaCO3)

Sandstone (Red Flagstone)

Clastic sedimentary rock (primarily Quartz - SiO2)

Quartz (likely Milky Quartz)

Quartz (SiO₂ - Silicon Dioxide)

Rough Diamond

Carbon (C)

Dalmatian Stone

Dalmatian Jasper (not a true jasper, typically an igneous perthite)

Weathered iron-rich rock, possibly limonite-bearing sandstone

Limonite/goethite mixture, approximately hydrated iron oxides (FeO(OH)·nH₂O), possibly coating sandstone or ironstone

Poppy Jasper

Microcrystalline Quartz (SiO2) with mineral inclusions

Sandstone

Clastic Sedimentary Rock (composed mostly of SiO2)

Sandstone

Sedimentary Rock (Quartz Sandstone)

Sandstone

Sandstone (lithified arenite/wacke)

Chert nodules in Limestone

Microcrystalline Quartz (SiO2) in Calcium Carbonate (CaCO3) matrix

Fossil Coral

Coral Limestone (a type of biogenic sedimentary rock)

Sandstone

Clastic Sedimentary Rock

Sandstone

Clastic Sedimentary Rock

Red Jasper

Silicon dioxide (SiO2) with iron oxide inclusions

Sandstone (Quartzose Sandstone)

Arenite (primarily SiO2)

Quartzite

Quartzite (composed primarily of SiO2)

Dragon Stone

Argillaceous Sedimentary Rock (Ohko Stone)

Chert

Chert (variant of microcrystalline quartz)

Sandstone

Arenite (Sedimentary rock composed of sand-sized grains)

Granite

Granite (composed primarily of Quartz, Feldspar, and Mica)

Sandstone Pebble

Sedimentary quartz arenite

Granite

Granite

Conglomerate

Sedimentary Conglomerate

Sandstone Pebble

Sedimentary Rock (Quartzose Sandstone)

Ironstone

Ferruginous Sedimentary Rock (composed of Goethite, Hematite, and Limonite)

Rock Crystal Quartz

Quartz (SiO₂)