Mineral Or Sedimentary Rock (With Mineral Inclusions)

Flower Agate

Chalcedony with Opaque Spherulitic Inclusions (SiO2)

Mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz with Chalcopyrite and Pyrite

Silicon Dioxide (SiO2) with Copper Iron Sulfide (CuFeS2)

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Milky Quartz

Silicon Dioxide (SiO2)

Quartzite

Quartzite (Primary mineral: SiO2)

Metamorphic

Quartz

Silicon Dioxide (SiO2)

Quartz (Milky/Clear Quartz)

Silicon Dioxide (SiO2)

Granite

Granite (a common igneous rock)

Sodalite

Sodalite (Na8Al6Si6O24Cl2)

Mineral

Quartz Geode

Silicon Dioxide (SiO2) within a geode

Sedimentary Rock (possibly conglomerate or breccia with a quartz vein)

Veined Pebble (likely a Quartz-Veined Pebble)

Pebble with Mineral Vein (e.g., Quartz Vein in a Chert/Mudstone Pebble)

Banded Agate (specifically Moss or River Agate variety)

Cryptocrystalline Quartz (SiO2)

Basalt (Vesicular)

Vesicular Basalt

Igneous

Basalt

Mafic volcanic rock (primarily plagioclase feldspar and pyroxene)

Green Aventurine

Quartzite (variety Aventurine) with Fuchsite inclusions (K(Al,Cr)2(AlSi3O10)(OH)2)

Milky and Citrine-type Quartz

Silicon Dioxide (SiO2)

Schist

Mica Schist (primarily Muscovite and Quartz)

Shale

Shale (clastic sedimentary rock)

Sedimentary

Granite

Felsic Plutonic Rock (primarily SiO2, Al2O3, K2O, Na2O)

Sandstone (Ferruginous)

Ferruginous Sandstone (SiO2 with iron oxide cement)

Sunstone

Oligoclase or Andesine (Labradorite) Feldspar (Na,Ca)(Si,Al)4O8

Granite

Phaneritic Igneous Rock (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)

Granite Pebble

Granite (Phaneritic intrusive igneous rock comprising Quartz, Feldspar, and Mica)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Red Jasper

Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)

Chalcedony (River Stone)

Microcrystalline Quartz (SiO2)

Greenschist (Greenstone)

Greenschist

White Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Jasper

Jasper (Silicon Dioxide, SiO2)

Chert Pebble (Jasper/Quartz variety)

Microcrystalline Quartz (SiO2)

Jasper with Quartz vein

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Snowflake Obsidian

Vitreous Volcanic Rock (Amorphous Silicate), SiO2

Lapis Lazuli (Raw Ore)

Na8[Al6Si6O24]n(S,Cl,SO4,OH)2 (Lazurite component)

Green Aventurine and Clear Quartz

Green Aventurine (Silicon Dioxide - SiO2 with Fuchsite inclusions); Clear Quartz (Silicon Dioxide - SiO2)

Mineral

Milky Quartz (Common Quartz)

Quartz (Silicon Dioxide, SiO2)

Clear Quartz

Crystalline Silicon Dioxide (SiO2)

Milky Quartz Pebble

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Specifically Clear to Smoky Quartz point)

Silicon Dioxide (SiO2)