Rutilated Quartz

Hardness: 7 on Mohs scale. Color: Clear, colorless, containing golden to reddish-brown rutile needles. Luster: Vitreous. Crystal Structure: Hexagonal (trigonal system). Cleavage: None. Specific Gravity: 2.65.

Rutilated Quartz forms hydrothermally in igneous and metamorphic rocks. It occurs when titanium dioxide (rutile) crystallizes within quartz during its formation. The geological age of Rutilated Quartz varies depending on the specific deposit, but it is typically associated with late-stage magmatic or metamorphic processes.

Rutilated Quartz is primarily used in jewelry, particularly for beads, cabochons, and polished specimens. Its unique inclusions make it a popular choice for collectors. It is also used in metaphysical and healing practices.

Rutilated Quartz is highly valued for its striking inclusions. The rutile needles can be fine and hair-like, or thick and needle-like, sometimes forming interesting patterns like stars or sunbursts. It is often referred to as 'The Stone of Illumination' or 'Angel Hair Quartz' due to its appearance.

To identify Rutilated Quartz in the field, look for clear or smoky quartz crystals containing metallic, golden, reddish-brown, or sometimes black needle-like inclusions. These inclusions are distinct and can be seen by eye or with a loupe. It is commonly found in areas rich in quartz deposits, such as Brazil (Minas Gerais), Australia, Madagascar, Norway, and the United States (Arkansas, North Carolina).