Granite

Biotite Mica

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

Morganite (Pink Beryl)

Beryllium aluminum silicate Be3Al2(SiO3)6

Diorite

Diorite (Intermediate intrusive igneous rock)

Pegmatite (Granitic)

Granitic Pegmatite containing Quartz, Feldspar, and Tourmaline (Schorl)

Gneiss

High-grade foliated metamorphic rock

Schorl (Black Tourmaline) in Pegmatite

Sodium Iron Aluminum Borosilicate (NaFe3Al6(BO3)3Si6O18(OH)4)

Diorite (Spotted or Dalmatian Stone effect)

Diorite (Intermediate Plutonic Rock)

Milky Quartz

Silicon Dioxide (SiO2)

Granitic Gneiss

Gneiss (High-grade Metamorphic Rock)

Quartz (Smoky/Milky variety with inclusion)

Silicon Dioxide (SiO2)

Quartz (Milky or Druzy variety)

Silicon Dioxide (SiO2)

Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Quartz River Cobble

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz Pebble (Iron-Stained)

Silicon Dioxide (SiO2)

Quartz Pebble (Milky Quartz)

Silicon Dioxide (SiO2)

Smoky Quartz

Smoky Quartz (Silicon Dioxide, SiO2)

Quartz Crystal (specifically a small Clear Quartz point)

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Arkosic Sandstone (or Conglomeritic Sandstone fragment)

Arkose (rich in feldspar)

Bauxite

Bauxite (Al(OH)3, γ-AlO(OH), and α-AlO(OH))

Fluorite

Calcium Fluoride (CaF2)

Quartz (Smoky/Milky variety)

Silicon Dioxide (SiO2)

Milky Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Granite Glacial Erratic

Phaneritic Plutonic Felsic Rock (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8 – SiO2)

Granite with Quartz Vein

Phaneritic Felsic Igneous Rock (composed of Quartz [SiO2], Feldspar, and Mica)

Beryl (Aquamarine)

Beryllium Aluminum Cyclosilicate (Be3Al2Si6O18)

Aquamarine with Ruby Accent

Beryllium Aluminum Silicate (Be3Al2Si6O18) with Aluminum Oxide (Al2O3)

Lepidolite

K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2

Black Tourmaline

Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)

Prehnite

Prehnite (Ca2Al(AlSi3O10)(OH)2)

Pink Lepidolite

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)

Flesh-colored Quartzite

Quartzite (SiO2)

Quartz

Silicon Dioxide (SiO2)

Yellow Quartz (Citrine Quartz)

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Labradorite

Labradorite (Plagioclase Feldspar Series) - (Ca, Na)(Al, Si)4O8

Pegmatite with Schorl (Black Tourmaline) and Mica

Pegmatite (complex association of NaAlSi3O8, NaFe3Al6(BO3)3Si6O18(OH)4, and KAl2(AlSi3O10)(OH,F)2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Rose Quartz

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

Milky Quartz

Silicon Dioxide (SiO2)

Granodiorite

Granodiorite (Quartz-Feldspar-Biotite Plutonic Rock)