Lithium Quartz
Quartz var. Lithium-included Quartz · Collector Mineral / Semi-Precious Gemstone
Crystal System
Trigonal; typically occurs as prismatic crystals with hexagonal cross-sections, often found in massive or rough tumbled forms.
Mineral Group
Silicates; Tectosilicate (Quartz group)
Chemical Formula
SiO2 with inclusions of (Li,Al)Si2O6 (Lepidolite) or Lithium ions
Formation Process
Hydrothermal or Pegmatitic; forms through the crystallization of silica-rich fluids containing lithium-bearing minerals during the cooling of igneous bodies.
About This Crystal
A translucent to transparent variety of quartz characterized by a distinct pale pinkish-mauve to lavender or light grey-purple color. The color is often concentrated in cloudy inclusions or phantoms near the core or base. It displays a vitreous luster and conchoidal fracture.
Physical Characteristics
Color: Pale pink-mauve; Streak: White; Cleavage: None; Fracture: Conchoidal; Specific Gravity: 2.65; Fluorescence: Usually inert but can show weak yellow/orange if lepidolite inclusions are present.
Optical Properties
Refractive Index: 1.544–1.553; Birefringence: 0.009; Uniaxial (+); Pleochroism: None; Optical phenomena: Can occasionally show phantom growth structures.
Hardness & Durability
Origin Region
Minas Gerais, Brazil (Primary source); typically found in lithium-rich granitic pegmatites.
Hardness & Durability
Mohs Hardness: 7; Toughness: Good; Stability: Stable under normal conditions, though inclusions may be sensitive to extreme thermal shock.
Care & Maintenance
Clean with warm soapy water and a soft brush. Avoid ultrasonic cleaners if heavy inclusions are present. Store separately from harder gemstones like topazes or sapphires to prevent scratching.
Rarity & Value
Uncommon; more valuable than standard clear quartz due to specific locality and lithium content. Value is determined by color intensity and crystal clarity.
Special Characteristics
Known for its natural 'phantom' inclusions of lithium-rich minerals which provide its unique color, distinguishing it from Rose Quartz or Amethyst.
Lore & History
In crystal healing traditions, it is associated with the Heart and Third Eye chakras and is believed to promote emotional peace and stress relief due to the lithium content (traditionally used in mood-balancing medicine). Historically, it is a relatively modern find in the gemstone market compared to ancient stones.