Carved Stone

Red Jasper

Microcrystalline Quartz (SiO2) with iron oxide inclusions

Limestone

Calcium Carbonate (CaCO3)

Sandstone

Clastic Sedimentary Rock

Red Jasper

Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions

Milky Quartz

Silicon Dioxide (SiO2)

Sandstone (Red/Brown Sandstone pebble)

Arenite (SiO2 dominated sandstone)

Sodalite

Na8(Al6Si6O24)Cl2

Yellow Jade (Yellow Chalcedony/Quartz)

Silicon Dioxide (SiO2)

Dalmatian Stone (Dalmation Jasper)

Aplite with Arfvedsonite inclusions

Tumbled green-and-white stone, likely serpentine

Serpentinite; mainly serpentine-group minerals, Mg₃Si₂O₅(OH)₄, with possible magnesite or talc

Granodiorite

Granodiorite (Intermediate intrusive igneous rock)

Dalmatian Stone

Dalmatian Jasper (Aplite rock composition)

Granite Cobble

Granite (Phaneritic intrusive igneous rock)

Red Jasper

Silicon dioxide (SiO2) with iron oxide inclusions

Tumbled green aventurine quartz

Quartz, silicon dioxide (SiO₂), with green fuchsite mica inclusions

Diorite

Diorite (Plagioclase-rich phaneritic intrusive)

Sandstone

Arenite (SiO2 based)

Sandstone

Arenite (primarily SiO2)

Carnelian

Chalcedony (SiO2)

Green Aventurine

Aventurine Quartz (SiO2 with inclusions)

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Sandstone

Arenite (SiO2 primarily)

Red Sandstone

Clastic Terrigenous Sedimentary Rock (primarily SiO2 with Fe2O3 coating)

Basalt

Basalt (Mafic volcanic rock)

Polished dark green stone pendant, likely serpentine or nephrite jade

Serpentine-group minerals, commonly antigorite/lizardite; possible nephrite (microcrystalline tremolite–actinolite)

Serpentine

Serpentinite (Mg,Fe,Ni,Al,Zn)3Si2O5(OH)4

Sodalite

Na8(Al6Si6O24)Cl2

Mahogany Obsidian

Obsidian (Volcanic Glass with Hematite inclusions)

Sodalite

Sodalite (Na8Al6Si6O24Cl2)

Pink Granite

Phaneritic Quartz-Feldspar Plutonic Rock

Sandstone

Arenite (primarily SiO2 - Silicon Dioxide)

Nephrite Jade (Pounamu)

Nephrite [Ca2(Mg, Fe)5Si8O22(OH)2]

Diorite

Diorite (Intermediate intrusive igneous rock)

Opalite (Man-made Glass)

Synthetic Silicon Dioxide Glass (SiO2 + metal oxides)

Amethyst Quartz (Chevron Amethyst)

Silicon Dioxide (SiO2) with iron impurities

Orange Calcite

Calcium Carbonate (CaCO3)

Red Jasper Concretion

Cryptocrystalline Quartz (SiO2)

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Basalt (with Brass Inlay)

Basalt (Mafic volcanic rock)

Pink opal bead bracelet with carved crescent charm

Common opal (hydrated amorphous silica, SiO₂·nH₂O); the charm’s material is uncertain from the image

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Granite

Granite (composed primarily of Quartz SiO2, Alkali Feldspar KAlSi3O8, and Plagioclase)