Organic Materia (Not A Rock Or Mineral)

Red Sandstone

Arenite (Ferruginous Sandstone)

Basalt

Mafic Volcanic Rock (composed of plagioclase, pyroxene, and olivine)

Granite

Granite (a felsic intrusive igneous rock)

Sandstone

Arenite (primarily SiO2)

Jasper with Quartz Veining

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Mica Schist

Mica Schist (predominantly Muscovite or Biotite sheet silicates)

Blue Quartz (Aventurine)

Silicon Dioxide (SiO2) with fibrous inclusions (commonly Dumortierite)

Peridotite (Dunite)

Peridotite (mostly Olivine: (Mg,Fe)2SiO4)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Picture Jasper

Silicon Dioxide (SiO2) with iron oxide and clay inclusions

Schist (Kyanite Schist)

Kyanite-Mica Schist (primarily Al2SiO5, KAl2(AlSi3O10)(OH)2, and SiO2)

Sandstone (likely Arkose)

Arenite (composed mainly of SiO2 with Feldspar)

Granite

Granite (Phaneritic Igneous Rock)

Granite

Phaneritic Felsic Igneous Rock

Conglomerate (Puddingstone)

Conglomerate (specifically, clastic sedimentary rock)

Milky Quartz

Silicon Dioxide (SiO2)

Amethyst (as a jewelry accent)

Amethyst (Silicon Dioxide SiO2 with Iron impurities)

Rose Quartz (or Quartzite)

Silicon Dioxide (SiO2)

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Satin Spar (Gypsum)

Hydrous Calcium Sulfate (CaSO4·2H2O)

Sandstone (Quartzose Sandstone)

Clastic sedimentary rock (primarily SiO2)

Sandstone (Ferruginous)

Arenite (variable SiO2 with Fe2O3 staining)

Labradorite (Feldspar)

Labradorite, (Ca,Na)(Al,Si)4O8

Rough Sapphire (Corundum)

Corundum (Al2O3)

Banded Agate

Agate (Cryptocrystalline variety of Quartz, SiO2)

Blue Sapphire

Corundum (Al2O3)

Pink Granite

Granite (Alkali-feldspar granite)

Quartzite

Quartzite (primarily SiO2)

Basalt-Amugydule (Amygdaloidal Basalt)

Aphanitic Mafic Igneous Rock with Vesicle Infillings

Granite

Phaneritic Intrusive Igneous Rock (composed of Quartz, Feldspar, and Mica)

Sandstone (Quartzose)

Arenite (primarily SiO2)

Quartz Geode (Cracked Open Fragment)

Silicon Dioxide (SiO2)

Sandstone (Pebble)

Arenite / Clastic Sedimentary Rock

Granite

Phaneritic Intrusive Igneous Rock (Granite)

Turquoise

Turquoise (Hydrated phosphate of copper and aluminium) CuAl6(PO4)4(OH)8·4H2O

Sandstone

Arenite (primarily SiO2)

Sandstone (specifically Picture Sandstone or Wonderstone)

Arenite (composed primarily of SiO2)

Sandstone

Arenite (primarily SiO2)

Sandstone

Arenite (composed primarily of SiO2)

Sandstone (with banding/weathering)

Clastic Sedimentary Rock (primarily SiO2)

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

Basalt (River Rock/Cobble)

Basalt (no specific mineral formula as it's a rock)