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Sunstone

Aventurine Feldspar (composition: (Ca,Na)((Al,Si)2Si2O8))

Limonite (Iron Ore)

Limonite (Hydrated iron oxide - FeO(OH)·nH2O)

Amethyst (Raw Quartz)

Silicon Dioxide (SiO2)

Mica Schist

Mica Schist (primarily Muscovite or Biotite Schist)

Barite Rose on Marcasite

Barium Sulfate (BaSO4) on Iron Sulfide (FeS2)

Iron-stained Quartz

Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3/FeO(OH))

Chert (Flint nodule)

Silicon dioxide (SiO2)

Red Jasper

Silicon dioxide (SiO2) with iron oxide inclusions

Mica Schist

Mica Schist (primarily Muscovite or Biotite sheet silicates)

Jadeite Jade

NaAlSi2O6 (Sodium Aluminum Silicate)

Chert (Iron-stained)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Banded Slate or Siltstone with Quartz/Calcite Veins

Protolith-derived Siltstone or Slate (varies based on degree of metamorphism)

Chert (Nodule)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)

Brown Agate

Silicon Dioxide (SiO2)

Quartz on Basalt

Silicon Dioxide (SiO2) on Mafic Igneous Rock

Pyrite (on host rock)

Iron Sulfide (FeS2)

Petrified Wood

Silicified Wood (primarily Chalcedony or Quartz, SiO2)

Hematite Beads

Hematite (Fe2O3)

Picture Jasper

Silicon Dioxide (SiO2) with mineral inclusions

Pyrite Sun (Pyrite Dollar)

Iron Disulfide (FeS2)

Lapis Lazuli (Tumbled)

Lazurite-dominated contact metamorphic rock

Carnelian Agate

Silicon Dioxide (SiO2) - variety of Chalcedony

Dragon Blood Jasper (Lizard Stone/Septarian Chalcedony)

Epidote with Black Hornblende and White Quartz mixture

Marble (Calcitic)

Metamorphosed Limestone (CaCO3)

Clear Quartz Crystal

Silicon Dioxide (SiO2)

Granite

Granite

Basalt

Basalt (Mafic volcanic rock)

Clear Quartz

Silicon Dioxide (SiO2)

Quartzite

Metamorphosed Quartz Sandstone (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Geode (Smoky Quartz)

Silicon Dioxide (SiO2)

Red Jasper (Brecchiated Jasper)

Silicon Dioxide (SiO2) with Hematite impurities

Amethyst

SiO2 (Silicon Dioxide with Iron impurities and natural radiation influence)

Nephrite Jade

Ca2(Mg, Fe)5Si8O22(OH)2 (Tremolite-Actinolite series)

Quartz with Limonite Staining

Silicon Dioxide (SiO2) with Hydrated Iron Oxide (FeO(OH)·nH2O)

Basalt

Mafic Volcanic Rock (composed of Plagioclase Feldspar and Pyroxene)

Dalmatian Stone

Dalmatian Jasper (a misnomer for an Aplite with Arfvedsonite spots)

Quartzite Pebble

Recrystallized Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Sandstone (River Pebble)

Arenite (SiO2 based)

Schist (Micaceous Schist)

Schist (comprising Muscovite/Biotite mica, Quartz, and Feldspar)