Igneous, Sedimentary, Metamorphic, And Mineral

Clear Quartz (Faceted) or Cubic Zirconia / Glass imitation

SiO2 (if Quartz), ZrO2 (if Cubic Zirconia)

Quartz (Milky or Yellow/Citrine Quartz)

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Magnetite (Lodestone)

Magnetite (Fe3O4)

Quartz with Inclusions

Silicon Dioxide (SiO2)

Hematite

Iron Oxide (Fe2O3)

Milky Quartz

Silicon Dioxide (SiO2)

Galena

Lead Sulfide (PbS)

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Pyrite Nodules / Weathered Pyrite

Iron Sulfide (FeS2)

Quartz

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Blue Quartz

Silicon Dioxide (SiO2) with inclusions

Milky Quartz

Silicon Dioxide (SiO2)

Blue Apatite

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

Pyrite

Iron sulfide (FeS2)

Milky Quartz

Quartz (SiO2)

Pyrite in Quartz Matrix

Iron Sulfide (FeS2) embedded in Silicon Dioxide (SiO2)

Green Aventurine

SiO2

Quartz fragment

Silicon Dioxide (SiO2)

Zoisite with Ruby (Anyolite)

Zoisite – Ca2Al3(SiO4)3(OH) with inclusions of Ruby (Al2O3:Cr)

Milky Quartz

Silicon Dioxide (SiO2)

Magnetite (Iron Ore)

Magnetite (Fe3O4)

Magnetite (potentially Hematite)

Magnetite (Fe₃O₄)

Quartz

Silicon Dioxide (SiO2)

Pyrite (Fools Gold)

Iron Disulfide (FeS2)

Quartz (Milky/Snow)

Silicon Dioxide (SiO2)

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Milky Quartz

Silicon dioxide (SiO2)

Quartz (Raw / Unpolished)

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Blue Calcite

Calcium Carbonate (CaCO3)

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Quartz with Inclusions

Silicon Dioxide (SiO2)

Clear Quartz (Faceted Crystal)

Silicon Dioxide (SiO2)

Magnetite (Octahedral Crystal)

Magnetite (Fe3O4)

Quartz (Rose Quartz or Jasper variety)

Silicon Dioxide (SiO2)

Pyrite

Iron Sulfide (FeS2)

Quartz

Silicon Dioxide (SiO2)