Quartz specimens with mineral inclusions are very common and make attractive gemstones. "Rutilated quartz" or "sagenite", popularly known as Venus-hair stone, is quartz, with needle-like rutile crystals. These may be red. Black or brassy yellow, and have a metallic luster. "Tourmalinated quartz" has inclusions of black tourmaline, which form prismatic or needle-like crystals. Opaque, metallic yellow inclusions of gold are found in specimens of "gold quartz". Inclusions of silver may also be found within quartz, often in branch-like dendrites. And are silvery grey or black, opaque, and metallic. The iron minerals, goethite and pyrite. Are also found as inclusions. If cut en cabochon, quartz containing goethite may show the cat's-eye effect.

Quartz with inclusions is found in Madagascar. Brazil. South Africa. India. Sri Lanka. Germany and Switzerland.

Pyrope comes from the Greek pyropos, meaning fiery. Swiss and South African pyropes are lighter red than stones from Bohemia, where pyrope jewellery has been made for over 500 years.