Mineral (Native Element Alloy)

Green Aventurine

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

Pyrite

Iron Disulfide (FeS2)

Rutilated Quartz (beads)

SiO2 with TiO2 inclusions (Titanium Dioxide inclusions within Quartz)

Septarian Nodule (Septarian Dragon Stone)

Septarian concretion (composition: Calcite CaCO3, Aragonite CaCO3, and Limestone/Clay)

Fossilized Shark Tooth

Fossil Chondrichthyes (various genera such as Carcharias or Odontaspis)

Granite

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

Granite

Granite (Felsic Plutonic Rock)

Lapis Lazuli

Lapis lazuli (Mainly Lazurite: Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Unakite

Unakite (altered granite)

Yellow Ocher / Limonite

FeO(OH)·nH2O (Hydrated iron(III) oxide-hydroxide)

Sandstone (Quartzite-rich Cobble)

Clastic sedimentary rock (primarily SiO2)

Magnetite (potentially Hematite-rich)

Magnetite (Fe3O4)

Schorl (Black Tourmaline) in Quartz and Feldspar

NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)

Corundum (Sapphire/Ruby in Matrix)

Corundum (Al2O3)

Milky Quartz (Common Quartz)

Quartz (Silicon Dioxide, SiO2)

Rose Quartz

Silicon Dioxide with traces of Titanium, Iron, or Manganese (SiO2)

Diamond (appearing in jewelry)

Diamond (pure Carbon, C)

Rough Diamond

Diamond (C)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Rose Quartz

Pink Quartz (SiO2)

Yellow Quartz (Citrine-colored Quartz Pebble)

Silicon Dioxide (SiO2)

Jade (Nephrite or Jadeite)

Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 (amphibole mineral); Jadeite: NaAlSi2O6 (pyroxene mineral)

Banded Agate

Cryptocrystalline Quartz (SiO2)

Banded Agate

Chalcedony / Silicon Dioxide (SiO2)

Green Banded Agate

Agate (Variety of Chalcedony/Quartz), SiO2

Grey Agate (Tumbled)

Silicon Dioxide (SiO2)

Chrysocolla Chalcedony

Hydrated Copper Phyllosilicate (Cu,Al)2H2Si2O5(OH)4 + SiO2

Quartz (specifically a water-worn river pebble)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

White Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Milky Quartz (among River Rock)

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Beach Pebble)

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Ruby in Zoisite

Anyolite (Ruby in Zoisite)

Granodiorite

Granodiorite (Quartz + Plagioclase + Alkali Feldspar + Biotite/Hornblende)

Basalt

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

Schist

Mica Schist (Group of medium-grade metamorphic rocks)

Lapis Lazuli

A metamorphic rock primarily composed of lazurite (Na,Ca)8[(S,SO4,Cl)2|(Al6Si6O24)], calcite (CaCO3), and pyrite (FeS2).