Mineral, Often Found As A Rock (Metamorphic)

Rhodonite

Rhodonite (Mn,Fe,Mg,Ca)SiO3

River Stone / Pebble

Clastic Sediment (composed largely of Quartz, Feldspar, and various rock fragments)

Sapphire

Corundum (Al2O3)

Anthracite Coal

Anthracite (Carbon-based sedimentary-metamorphic rock)

Quartzite (Potentially Ferruginous)

Quartzite (SiO2)

Yellow Apatite Sphere (Polished)

Fluorapatite / Ca5(PO4)3F

Shale or Slate with Quartz Veins

Shale (fine-grained clastic sedimentary rock) or Slate (low-grade metamorphic rock formed from shale) with Quartz (SiO2) veins

Jasper in Quartzite (likely Cinnabar or Iron inclusions)

Silicon dioxide (SiO2) with impurities

Quartzite

Quartzite (SiO2)

Quartz Vein in Host Rock

Silicon Dioxide (SiO2)

Quartz (Milky Quartz / Quartzite)

Silicon Dioxide (SiO2)

Clear Quartz / Rock Crystal

Silicon Dioxide (SiO2)

Shale (Beach-worn)

Laminated Pelite (primarily clay minerals and quartz)

Quartz (Rock Crystal)

Quartz (SiO₂ - Silicon Dioxide)

Petrified Wood

Silicified Wood (SiO2)

Chert (Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Greisen (Quartz-Muscovite-Turretine Rock)

Greisen

Pink Quartzite

Quartzite (primarily SiO2)

Gneiss

Gneiss (Metamorphic rock of variable composition, typically SiO2 rich)

Rhodonite

Rhodonite (Manganese silicate, (Mn,Fe,Mg,Ca)SiO3)

Aventurine

Aventurine Quartz (SiO2 with inclusions)

Quartzite River Rock

Quartzite (primarily SiO2)

Serpentinite

Serpentinite ((Mg,Fe,Ni,Al)3Si2O5(OH)4)

Serpentine

Serpentine Group (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

Pyrite in Quartz

Iron Sulfide (FeS2) in Silicon Dioxide (SiO2)

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

Mica Group Minerals

There isn't a single scientific name as 'Mica' refers to a group of phyllosilicate minerals. Common scientific names include Muscovite (KAl₂ (AlSi₃O₁₀)(OH)₂), Biotite (K(Mg,Fe)₃AlSi₃O₁₀(OH)₂), Phlogopite (KMg₃AlSi₃O₁₀(OH)₂), and Lepidolite (K(Li,Al)₃(Al,Si,Rb)₄O₁₀(F,OH)₂).

Sandstone

Clastic sedimentary rock (primarily SiO2)

Arsenopyrite in Quartz Matrix

Arsenopyrite (FeAsS) with Quartz (SiO2)

Tiger's Eye

Tiger's Eye (a variety of Chalcedony, which is a microcrystalline quartz with fibrous inclusions of oxidized crocidolite)

Yellow Quartzite (Iron-Stained Quartz)

Quartzite (SiO2 with Fe-oxide impurities)

Lapis Lazuli

Lazurite-dominant Metamorphic Rock (complex aluminosilicate)

Jasper (likely a variety of Brecciated Jasper or a patterned variety)

Silicon dioxide (SiO2)

Aquamarine and clear quartz

Aquamarine (Be3Al2Si6O18), Quartz (SiO2)

Schist

Mica Schist (primarily consisting of muscovite KAl2(AlSi3O10)(OH)2 or biotite K(Mg,Fe)3(AlSi3O10)(OH)2)

Quartzite

Quartzite (primarily SiO2)

Quartzite (River Stone)

Metamorphosed Quartz Sandstone (SiO2)

Lapis Lazuli

Lapis Lazuli (a rock composed primarily of Lazurite, Sodalite, Calcite, and Pyrite)

Quartzite with Iron Inclusions

Metamorphosed Sandstone (SiO2 dominated)

Gneiss

Gneiss (a rock type, not a specific mineral with a formula)

White Quartz

Quartz (SiO2)