Rutilated Quartz
Quartz var. Rutilated Quartz · Semi-Precious Gemstone
Crystal System
Trigonal, prismatic crystals with hexagonal cross-section, commonly found as massive, druzy, or within hydrothermal veins containing acicular rutile needles
Mineral Group
Silicates
Chemical Formula
SiO2 with inclusions of TiO2
Formation Process
Hydrothermal and pegmatitic formation where titanium dioxide (rutile) needles crystallize first or simultaneously with the host quartz under high temperatures and pressures
About This Crystal
Transparent to translucent quartz host material featuring distinctive golden to reddish-brown acicular needles of rutile suspended within, showing a vitreous luster and polished smooth surface
Physical Characteristics
Colorless or smoky quartz body with golden inclusions, white streak, conchoidal fracture, lack of distinct cleavage, specific gravity of approximately 2.65, brittle tenacity, and no significant fluorescence
Optical Properties
Singly refractive or uniaxial positive with a refractive index of 1.544 to 1.553, low birefringence, and no strong pleochroism in the host quartz, though inclusions display metallic luster
Hardness & Durability
Origin Region
Brazil, Madagascar, Australia, India, and the United States, typically forming in hydrothermal veins and pegmatites
Hardness & Durability
Mohs hardness of 7 for the quartz host, making it durable for daily wear, though brittle with fair to good toughness depending on the density and arrangement of internal rutile inclusions
Care & Maintenance
Clean with warm soapy water and a soft brush; avoid ultrasonic or steam cleaners if inclusions reach the surface; store separately from harder gems to prevent scratching
Rarity & Value
Common to uncommon, with value heavily dependent on the clarity of the quartz and the density, alignment, and golden coloration of the rutile needles; typically priced affordably unless featuring rare patterns
Special Characteristics
Contains distinct acicular or hair-like golden rutile crystal inclusions often poetically referred to as Venus hair stone or cupid's darts
Lore & History
Historically associated with vitality and spiritual illumination; traditionally believed in metaphysical practices to cleanse the aura, integrate spiritual energy, and promote mental focus, though these are cultural beliefs without scientific backing