Igneous And Metamorphic

Quartz

SiO2

Quartz

Silicon Dioxide (SiO2)

Quartz crystals on matrix

Silicon dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

White Quartz

Quartz (Silicon Dioxide, SiO2)

Yellow Aventurine

Quartz (Silicon Dioxide, SiO2) with inclusions

Quartz Pebble

Silicon Dioxide (SiO2)

Sapphire

Corundum (Al2O3)

Quartz

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

K-Feldspar (Potassium Feldspar)

Orthoclase / Microcline (KAlSi3O8)

Tumbled White Quartz

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Blue Apatite

Fluorapatite / Apatite Group (Ca5(PO4)3(F,Cl,OH))

Milky Quartz

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Iron-stained Quartz

Silicon Dioxide with Iron Oxide (SiO2 with Fe2O3)

Calcite (with iron oxide staining)

Calcium Carbonate (CaCO3)

Muscovite Mica

Muscovite - KAl2(AlSi3O10)(F,OH)2

Milky Quartz

Silicon Dioxide (SiO2)

Corundum (Sapphire / Raw Sapphire)

Aluminum Oxide (Al2O3)

Amethyst and Calcite collection

Silicon Dioxide (SiO2) and Calcium Carbonate (CaCO3)

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Sapphire (Blue/Violet Rough)

Corundum (Al2O3)

Prehnite

Calcium aluminum silicate hydroxide, Ca2Al(AlSi3O10)(OH)2

Quartz

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Quartz (Milky / Clear Quartz Fragment)

Silicon Dioxide (SiO2)

Potassium Feldspar (Orthoclase / Microcline)

KAlSi3O8 (Potassium Aluminum Silicate)

Sodalite

Na8(Al6Si6O24)Cl2

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Iron-Stained Quartz Pebble)

Silicon Dioxide (SiO2)

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Clear Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Agate

Silicon Dioxide (SiO2)

Orthoclase Feldspar

KAlSi3O8 (Potassium Aluminum Silicate)

Quartz (Iron-Stained)

Silicon Dioxide (SiO2)

Colorless Quartz (Rhinestone)

Silicon Dioxide (SiO2)