Sedimentary Rock (Possibly Conglomerate Or Breccia With A Quartz Vein)

Pyrite (Fool's Gold) Cube

Iron Sulfide (FeS2)

Fluorite Tower

Calcium Fluoride (CaF2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Pyrite

Iron Sulfide (FeS2)

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Pyrite

Iron Sulfide (FeS2)

Pyrite

Iron Sulfide (FeS2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Aquamarine

Beryl (Be3Al2Si6O18)

Milky Quartz Pebble

Crystalline Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Emerald

Beryl (Be3Al2(SiO3)6) colored by Chromium and/or Vanadium

Amethyst

Quartz (Silicon Dioxide with Iron impurities), SiO2

Pyrite

Iron Disulfide (FeS2)

Pyrite

Iron Sulfide (FeS2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Cinnabar

Mercury(II) sulfide (HgS)

Celestite

Celestine (Strontium Sulfate, SrSO4)

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Pyrite in Matrix

Iron Sulfide (FeS2)

Pyrite

Iron Sulfide (FeS2)

Pyrite

Iron Sulfide (FeS2)

Rose Quartz

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

Milky Quartz

Silicon Dioxide (SiO2)

Orange Calcite

Calcium Carbonate (CaCO3)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Milky/Macro-crystalline)

Silicon Dioxide (SiO2)

Slate with Quartz

Low-grade Metamorphic Slate with SiO2 inclusions

Smoky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Amethyst

Silicon Dioxide with iron impurities (SiO2)

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)