Mineral, Often Found As A Rock (Metamorphic)

Quartzite (River Cobble)

Metamorphic Quartz-rich Rock

Emerald in Schist (Raw/Tumbled)

Beryllium Aluminum Silicate (Be3Al2Si6O18) with Chromium/Vanadium impurities in Mica Schist

Unakite

Epidotized Granite

Sandstone

Arenite (Clastic Sedimentary Rock)

Sandstone

Arenite (primarily Quartz, SiO2)

Sandstone (Ferruginous)

Arenite (primarily SiO2 with iron oxide cement)

Granite (Phaneritic Igneous Rock)

Granite

Olivine (Peridot)

Magnesium Iron Silicate (Mg, Fe)2SiO4

Quartz (Agate/Chalcedony variety)

Silicon Dioxide (SiO2)

Carnelian Agate (with Quartz/Chalcedony)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Basalt with Quartz Vein

Basalt (SiO2 vein inclusion)

Quartz (Vein Quartz)

Silicon Dioxide (SiO2)

Quartz Geode

Silicon Dioxide (SiO2) within a geode

Blue Star Sapphire

Corundum (Al2O3)

Muscovite (White Mica)

Muscovite - Potassium aluminum silicate: KAl2(AlSi3O10)(F,OH)2

Dragon Blood Jasper (Lizard Stone/Septarian Chalcedony)

Epidote with Black Hornblende and White Quartz mixture

Glauconitic Sandstone (Greensand)

Glauconitic Quartz Arenite (containing Glauconite, (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2)

Strawberry Quartz

Silicon Dioxide (SiO2) with Hematite or Goethite inclusions

Quartzite

Quartzite (Primary mineral: SiO2)

Rutilated Quartz

Quartz (SiO2) with Rutile (TiO2) inclusions

Grey Agate (Tumbled)

Silicon Dioxide (SiO2)

Quartz Druze on Matrix

Silicon Dioxide (SiO2)

Sandstone (Ferruginous)

Ferruginous Sandstone (SiO2 with Fe2O3)

Nephrite Jade

Ca2(Mg,Fe)5Si8O22(OH)2

Sandstone Pebbles

Arenite (Sedimentary rock composed of sand-sized grains)

Quartz (Milky/Chalcedony variety)

Silicon Dioxide (SiO2)

Sodalite (Dotted or Spotted Variety)

Sodalite (Na8(Al6Si6O24)Cl2)

Moonstone

Orthoclase Feldspar ((K,Na)AlSi3O8) with Albite

Dalmatian Stone (commonly Dyed)

Dalmatian Jasper (Peralkaline igneous rock)

Basalt with Vesicular Surface

Basalt (Mafic Extrusive)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Orange Calcite

Calcium Carbonate (CaCO3)

Sandstone

Clastic Sedimentary Rock (primarily Quartz, SiO2)

Slate

Foliated Metamorphic Rock (primarily composed of quartz, illite, chlorite, and micas)

Sandstone

Arenite (SiO2 based typically)

Sandstone

Arenite (primarily SiO2 - Silicon Dioxide)

Mica Schist

Mica Schist (Composition typically includes Muscovite KAl2(AlSi3O10)(OH)2 and Quartz SiO2)

Dendritic Agate

Dendritic Agate (Silicon Dioxide with Manganese or Iron Oxide inclusions, SiO2)

Kambaba Jasper

Stromatolite / Fossilized Algae (Rhyolitic structure)

Labradorite

Labradorite (Plagioclase Feldspar Series) - (Ca, Na)(Al, Si)4O8

Sandstone

Arenite (primarily SiO2)

Sandstone

Arenite (composed primarily of SiO2)