Metamorphic (Pseudo Igneous)

Potassium Feldspar (Orthoclase)

Orthoclase (KAlSi3O8)

Moonstone

Orthoclase (KAlSi3O8) with Albite (NaAlSi3O8)

Labradorite

(Ca, Na)(Al, Si)4O8

Citrine

SiO2 (Silicon Dioxide)

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

Sunstone (Feldspar)

Plagioclase Feldspar (Na,Ca)(Al,Si)4O8

Quartz Crystal

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Hematite (likely Botryoidal or Specularite variant)

Iron(III) oxide (Fe2O3)

Schorl (Black Tourmaline)

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

Clear Quartz

Silicon Dioxide (SiO2)

Sapphire (Rough)

Corundum (Al2O3)

Green Aventurine

Silicon Dioxide (Quartz with Fuchsite inclusions) - SiO2

Cream Quartz Bead

Silicon Dioxide (SiO2)

Quartz with Schorl inclusions

Silicon Dioxide (SiO2) with Sodium Iron Aluminum Borosilicate Hydroxide (Black Tourmaline)

Pyrite

Iron Disulfide (FeS2)

Strawberry Quartz

Silicon Dioxide (SiO2) with Hematite/Goethite inclusions

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Feldspar (specifically Orthoclase)

Potassium Aluminum Silicate (KAlSi3O8)

Moonstone

Orthoclase Feldspar (KAlSi3O8) with inclusions of Albite

Citrine Quartz

Citrine (Silicon Dioxide, SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Red Garnet (Pyrope or Almandine)

Garnet Group (A3B2(SiO4)3)

Strawberry Quartz

Silicon Dioxide (SiO2) with Hematite or Goethite inclusions

Quartz (Smoky/Grey variety)

Silicon Dioxide (SiO2)

Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Citrine

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Sunstone

Oligoclase (Plagioclase Feldspar subclass), (Ca,Na)(Al,Si)4O8

Feldspar (specifically Orthoclase or Plagioclase)

Potassium Aluminum Silicate (KAlSi3O8) or Sodium/Calcium Aluminum Silicate

Pyrite

Iron Sulfide (FeS2)

Quartz (Grain)

Silicon Dioxide (SiO2)

Moonstone

Orthoclase Feldspar ((K,Na)AlSi3O8)

Citrine

Citrine (Silicon Dioxide, SiO2)

Quartz (Milky/Clear)

Silicon Dioxide (SiO2)

Clear Quartz

Silicon dioxide (SiO2)

Garnet (Pyrope-Almandine series)

Garnet Group, (Mg,Fe)3Al2Si3O12

Clear Quartz

Silicon Dioxide (SiO2)

Citrine

Silicon Dioxide (SiO2) with iron impurities

Blue Apatite

Calcium Phosphate (Ca5(PO4)3(F,Cl,OH))

Yellow Quartz (Citrine Quartz)

Silicon Dioxide (SiO2)