Metamorphic Or Igneous (Context Dependent)

Potassium Feldspar

Orthoclase (KAlSi3O8)

Foliated Metamorphic Rock (likely Gneiss or Schist)

Gneissic Metamorphic Rock

Mica-rich Pegmatite

Pegmatite (rich in Muscovite and Biotite)

Garnet Rhyolite

Rhyolite (high-silica volcanic rock) with almandine/spessartine garnet

Lapis Lazuli

Lapis Lazuli (Complex silicate mineral mix including Lazurite, Pyrite, and Calcite)

Milky Quartz (with trace inclusions)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Pyrite

Pyrite (Iron Disulfide), FeS2

Chert (Jasper or Flint variant)

Chert (composed of microcrystalline quartz, SiO2)

Magnetite

Magnetite (Fe3O4)

Sodalite

Sodalite: Na8(Al6Si6O24)Cl2

Sodalite

Sodalite (Na8Al6Si6O24Cl2)

Magnetite

Magnetite (Fe3O4)

Sodalite

Na8(Al6Si6O24)Cl2

Gneiss

Gneiss (Metamorphic rock)

Graphite

Graphite (Native Carbon), Formula: C

Quartz (Milky/Crystalline variety)

Silicon Dioxide (SiO2)

Citrine

Silicon Dioxide (SiO2)

Smoky Quartz

Smoky Quartz (SiO2)

Quartz Mineral

Silicon Dioxide (SiO2)

Citrine Quartz

SiO2 (Silicon Dioxide with Iron impurities)

Citrine

Silicon Dioxide (SiO2)

Blue Calcite

Calcium Carbonate (CaCO3)

Amazonite

K(AlSi3O8)

Quartz

Silicon Dioxide (SiO2)

Quartz (Amethyst variety)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Smoky Quartz (Faceted Beads)

Silicon Dioxide (SiO2)

Assorted Decorative Tumbled Stones (Quartz, Sodalite, Aventurine, Calcite)

Mixed Silicates and Carbonates (SiO2, Na8(Al6Si6O24)Cl2, CaCO3)

Gneiss (Banded Gneiss)

Gneiss

Quartz (Milky or Cloudy Quartz)

Silicon Dioxide (SiO2)

Ferruginous Quartz

Quartz (Silicon Dioxide) - SiO2 with Iron Oxide inclusions

Dalmatian Stone

Dalmatian Jasper (a misnomer) / Perthitic Igneous Rock

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Sodalite

Sodalite - Na8(Al6Si6O24)Cl2

Peacock Ore

Bornite (Cu5FeS4) or iridescent Chalcopyrite (CuFeS2)

Peacock Ore

Bornite (Cu5FeS4)

Lapis Lazuli

Lazurite-rich metamorphic rock (approx. Na6Ca2(Al6Si6O24)(S,SO4,Cl)1,2)

Biotite Schist

Biotite-rich Schist (K(Mg,Fe)3AlSi3O10(OH,F)2)

Orthoclase Feldspar

Potassium Aluminum Silicate (KAlSi3O8)

Biotite (Mica)

Biotite - K(Mg,Fe)3AlSi3O10(F,OH)2

Ruby Zoisite

Anyolite (Composition of Green Zoisite, Black Tschermakite, and Red Corundum)