Mineral

Rutilated Quartz

Quartz (SiO2) with Rutile (TiO2) inclusions

AI-generated identification · may be incorrect

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.

Hardness: 7 on Mohs scale
Luster: Vitreous

Identified August 19, 2025More mineral →

Explore Rutilated Quartz in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Formation & geological history

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.

Uses & applications

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.

Geological facts

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.

Field identification & locations

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).

Other mineral specimens

See all

Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

sedimentary

Mineral Sand (Heavy Mineral Sand Concentrate)

Placer deposit concentrate containing minerals such as ilmenite, rutile, zircon, and magnetite

mineral

Calcite–fluorite mineral specimen with iron-oxide staining

Calcite (CaCO₃), likely fluorite (CaF₂), with possible quartz and iron/manganese oxides

mineral

Soil with Mineral Detritus and Quartz Fragments

Regolith / Silicate Mineral Aggregate

sedimentary

Septarian Pebble

Septarian nodule / Concretion

sedimentary

Schist

Metamorphic